463 results match your criteria Annual Review Of Plant Biology[Journal]


Conditional Protein Function via N-Degron Pathway-Mediated Proteostasis in Stress Physiology.

Authors:
Nico Dissmeyer

Annu Rev Plant Biol 2019 Mar 20. Epub 2019 Mar 20.

Independent Junior Research Group on Protein Recognition and Degradation, Leibniz Institute of Plant Biochemistry (IPB); ScienceCampus Halle-Plant-Based Bioeconomy; and COST Action BM1307 - "European network to integrate research on intracellular proteolysis pathways in health and disease (PROTEOSTASIS)", D-06120 Halle (Saale), Germany; email:

The N-degron pathway, formerly the N-end rule pathway, regulates functions of regulatory proteins. It impacts protein half-life and therefore directs the actual presence of target proteins in the cell. The current concept holds that the N-end rule depends on the identity of the amino (N)-terminal amino acid and many other factors, such as the follow-up sequence at the N terminus, conformation, flexibility, and protein localization. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095937DOI Listing

MicroRNAs and Their Regulatory Roles in Plant-Environment Interactions.

Annu Rev Plant Biol 2019 Mar 8. Epub 2019 Mar 8.

Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China; email:

MicroRNAs (miRNAs) are 20-24 nucleotide noncoding RNAs abundant in plants and animals. The biogenesis of plant miRNAs involves transcription of miRNA genes, processing of primary miRNA transcripts by DICER-LIKE proteins into mature miRNAs, and loading of mature miRNAs into ARGONAUTE proteins to form miRNA-induced silencing complex (miRISC). By targeting complementary sequences, miRISC negatively regulates gene expression, thereby coordinating plant development and plant-environment interactions. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100334DOI Listing
March 2019
23.300 Impact Factor

Next-Gen Approaches to Flavor-Related Metabolism.

Annu Rev Plant Biol 2019 Mar 5. Epub 2019 Mar 5.

Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China; email:

Although flavor is an essential element for consumer acceptance of food, breeding programs have focused primarily on yield, leading to significant declines in flavor for many vegetables. The deterioration of flavor quality has concerned breeders; however, the complexity of this trait has hindered efforts to improve or even maintain it. Recently, the integration of flavor-associated metabolic profiling with other omics methodologies derived from big data has become a prominent trend in this research field. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100353DOI Listing
March 2019
5 Reads

CRISPR/Cas Genome Editing and Precision Plant Breeding in Agriculture.

Annu Rev Plant Biol 2019 Mar 5. Epub 2019 Mar 5.

State Key Laboratory of Plant Cell and Chromosome Engineering, Center for Genome Editing, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China 100101; email:

Enhanced agricultural production through innovative breeding technology is urgently needed to increase access to nutritious foods worldwide. Recent advances in CRISPR/Cas genome editing enable efficient targeted modification in most crops, thus promising to accelerate crop improvement. Here, we review advances in CRISPR/Cas9 and its variants and examine their applications in plant genome editing and related manipulations. Read More

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https://www.annualreviews.org/doi/10.1146/annurev-arplant-05
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http://dx.doi.org/10.1146/annurev-arplant-050718-100049DOI Listing
March 2019
25 Reads

Assembly of the Complexes of the Oxidative Phosphorylation System in Land Plant Mitochondria.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

Plant Sciences Research Group, Department Biologie I, Ludwig-Maximilians-Universität, 82152 Planegg-Martinsried, Germany.

Plant mitochondria play a major role during respiration by producing the ATP required for metabolism and growth. ATP is produced during oxidative phosphorylation (OXPHOS), a metabolic pathway coupling electron transfer with ADP phosphorylation via the formation and release of a proton gradient across the inner mitochondrial membrane. The OXPHOS system is composed of large, multiprotein complexes coordinating metal-containing cofactors for the transfer of electrons. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100412DOI Listing

Molecular and Environmental Regulation of Root Development.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium.

In order to optimally establish their root systems, plants are endowed with several mechanisms to use at distinct steps during their development. In this review, we zoom in on the major processes involved in root development and detail important new insights that have been generated in recent studies, mainly using the Arabidopsis root as a model. First, we discuss new insights in primary root development with the characterization of tissue-specific transcription factor complexes and the identification of noncell-autonomous control mechanisms in the root apical meristem. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100423DOI Listing

Functional Status of Xylem Through Time.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

US Department of Agriculture, Agricultural Research Service, Davis, California 95616, USA.

Water transport in vascular plants represents a critical component of terrestrial water cycles and supplies the water needed for the exchange of CO in the atmosphere for photosynthesis. Yet, many fundamental principles of water transport are difficult to assess given the scale and location of plant xylem. Here we review the mechanistic principles that underpin long-distance water transport in vascular plants, with a focus on woody species. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100455DOI Listing

Risk Assessment and Regulation of Plants Modified by Modern Biotechniques: Current Status and Future Challenges.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

Institu te for Biosafety in Plant Biotechnology, Julius Kühn-Institut Federal Research Centre for Cultivated Plants, 06484 Quedlinburg, Germany; email:

The review describes the current status and future challenges of risk assessment and regulation of plants modified by modern biotechniques, namely genetic engineering and genome editing. It provides a general overview of the biosafety and regulation of genetically modified plants and details different regulatory frameworks with a focus on the European situation. The environmental risk and safety assessment of genetically modified plants is explained, and aspects of toxicological assessments are discussed, especially the controversial debate in Europe on the added scientific value of untargeted animal feeding studies. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100025DOI Listing
March 2019
1 Read

A Fruitful Journey: Pollen Tube Navigation from Germination to Fertilization.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

School of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA; email:

In flowering plants, pollen tubes undergo tip growth to deliver two nonmotile sperm to the ovule where they fuse with an egg and central cell to achieve double fertilization. This extended journey involves rapid growth and changes in gene activity that manage compatible interactions with at least seven different cell types. Nearly half of the genome is expressed in haploid pollen, which facilitates genetic analysis, even of essential genes. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100133DOI Listing

Comparative and Functional Algal Genomics.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

Departments of Plant and Microbial Biology and Molecular and Cell Biology, University of California, Berkeley, California 94720, USA.

Over 100 whole-genome sequences from algae are published or soon to be published. The rapidly increasing availability of these fundamental resources is precipitating a paradigm shift in the way we understand one of the most diverse, complex, and understudied groups of photosynthetic eukaryotes. Genome sequences provide a window into the functional potential of each disparate alga, with phylogenomics and functional genomics as tools for contextualizing and transferring knowledge from reference organisms into less well-characterized systems. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095841DOI Listing

The Dynamics of Cambial Stem Cell Activity.

Annu Rev Plant Biol 2019 Mar 1. Epub 2019 Mar 1.

Umeå Plant Science Center, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umea, Sweden; email:

Stem cell populations in meristematic tissues at distinct locations in the plant body provide the potency of continuous plant growth. Primary meristems, at the apices of the plant body, contribute mainly to the elongation of the main plant axes, whereas secondary meristems in lateral positions are responsible for the thickening of these axes. The stem cells of the vascular cambium-a secondary lateral meristem-produce the secondary phloem (bast) and secondary xylem (wood). Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100402DOI Listing

Leaf Senescence: Systems and Dynamics Aspects.

Annu Rev Plant Biol 2019 Feb 27. Epub 2019 Feb 27.

Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea; email: ,

Leaf senescence is an important developmental process involving orderly disassembly of macromolecules for relocating nutrients from leaves to other organs and is critical for plants' fitness. Leaf senescence is the response of an intricate integration of various environmental signals and leaf age information and involves a complex and highly regulated process with the coordinated actions of multiple pathways. Impressive progress has been made in understanding how senescence signals are perceived and processed, how the orderly degeneration process is regulated, how the senescence program interacts with environmental signals, and how senescence regulatory genes contribute to plant productivity and fitness. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095859DOI Listing
February 2019

Molecular Networks of Seed Size Control in Plants.

Annu Rev Plant Biol 2019 Feb 22. Epub 2019 Feb 22.

State Key Laboratory of Plant Cell and Chromosome Engineering and Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; email:

The size of seeds affects not only evolutionary fitness but also grain yield of crops. Understanding the mechanisms controlling seed size has become an important research field in plant science. Seed size is determined by the integrated signals of maternal and zygotic tissues, which control the coordinated growth of the embryo, endosperm, and seed coat. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095851DOI Listing
February 2019

Division Plane Establishment and Cytokinesis.

Annu Rev Plant Biol 2019 Feb 22. Epub 2019 Feb 22.

Department of Developmental Genetics, Center for Plant Molecular Biology, Eberhard-Karls-Universität Tübingen, 72074 Tübingen, Germany; email: ,

Plant cells divide their cytoplasmic content by forming a new membrane compartment, the cell plate, via a rerouting of the secretory pathway toward the division plane aided by a dynamic cytoskeletal apparatus known as the phragmoplast. The phragmoplast expands centrifugally and directs the cell plate to the preselected division site at the plasma membrane to fuse with the parental wall. The division site is transiently decorated by the cytoskeletal preprophase band in preprophase and prophase, whereas a number of proteins discovered over the last decade reside continuously at the division site and provide a lasting spatial reference for phragmoplast guidance. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100444DOI Listing
February 2019

Molecular Mechanisms of Plant Regeneration.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa 230-0045, Japan; email: , , , , , ,

Plants reprogram somatic cells following injury and regenerate new tissues and organs. Upon perception of inductive cues, somatic cells often dedifferentiate, proliferate, and acquire new fates to repair damaged tissues or develop new organs from wound sites. Wound stress activates transcriptional cascades to promote cell fate reprogramming and initiate new developmental programs. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100434DOI Listing
February 2019

A Molecular View of Plant Local Adaptation: Incorporating Stress-Response Networks.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824, USA; email:

Ecological specialization in plants occurs primarily through local adaptation to different environments. Local adaptation is widely thought to result in costly fitness trade-offs that result in maladaptation to alternative environments. However, recent studies suggest that such trade-offs are not universal. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100114DOI Listing
February 2019

Chloroplast Lipids and Their Biosynthesis.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, 53115 Bonn, Germany; email:

Chloroplasts contain high amounts of monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) and low levels of the anionic lipids sulfoquinovosyldiacylglycerol (SQDG), phosphatidylglycerol (PG), and glucuronosyldiacylglycerol (GlcADG). The mostly extraplastidial lipid phosphatidylcholine is found only in the outer envelope. Chloroplasts are the major site for fatty acid synthesis. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100202DOI Listing
February 2019

Thermomorphogenesis.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia; email:

When exposed to warmer, nonstressful average temperatures, some plant organs grow and develop at a faster rate without affecting their final dimensions. Other plant organs show specific changes in morphology or development in a response termed thermomorphogenesis. Selected coding and noncoding RNA, chromatin features, alternative splicing variants, and signaling proteins change their abundance, localization, and/or intrinsic activity to mediate thermomorphogenesis. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095919DOI Listing
February 2019

The Scope, Functions, and Dynamics of Posttranslational Protein Modifications.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

Systembiologie der Pflanze, Universität Hohenheim, 70599 Stuttgart, Germany; email:

Assessing posttranslational modification (PTM) patterns within protein molecules and reading their functional implications present grand challenges for plant biology. We combine four perspectives on PTMs and their roles by considering five classes of PTMs as examples of the broader context of PTMs. These include modifications of the N terminus, glycosylation, phosphorylation, oxidation, and N-terminal and protein modifiers linked to protein degradation. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-100211DOI Listing
February 2019
2 Reads

Molecular Interactions Between Plants and Insect Herbivores.

Annu Rev Plant Biol 2019 Feb 20. Epub 2019 Feb 20.

Department of Plant Molecular Biology, University of Lausanne, 1015 Lausanne, Switzerland; email:

Diverse molecular processes regulate the interactions between plants and insect herbivores. Here, we review genes and proteins that are involved in plant-herbivore interactions and discuss how their discovery has structured the current standard model of plant-herbivore interactions. Plants perceive damage-associated and, possibly, herbivore-associated molecular patterns via receptors that activate early signaling components such as Ca, reactive oxygen species, and MAP kinases. Read More

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http://dx.doi.org/10.1146/annurev-arplant-050718-095910DOI Listing
February 2019

Look Closely, the Beautiful May Be Small: Precursor-Derived Peptides in Plants.

Annu Rev Plant Biol 2018 Dec 10. Epub 2018 Dec 10.

Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; email:

During the past decade, a flurry of research focusing on the role of peptides as short- and long-distance signaling molecules in plant cell communication has been undertaken. Here,we focus on peptides derived from nonfunctional precursors, and we address several key questions regarding peptide signaling. We provide an overview of the regulatory steps involved in producing a biologically active peptide ligand that can bind its corresponding receptor(s) and discuss how this binding and subsequent activation lead to specific cellular outputs. Read More

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https://www.annualreviews.org/doi/10.1146/annurev-arplant-04
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http://dx.doi.org/10.1146/annurev-arplant-042817-040413DOI Listing
December 2018
22 Reads

One Hundred Ways to Invent the Sexes: Theoretical and Observed Paths to Dioecy in Plants.

Annu Rev Plant Biol 2018 04;69:553-575

Department of Plant Biology, University of California, Davis, California 95616, USA; email: ,

Dioecy, the presence of male and female flowers on separate individuals, is both widespread and uncommon within flowering plants, with only a few percent of dioecious species spread across most major phylogenetic taxa. It is therefore safe to assume that dioecy evolved independently in these different groups, which allows us to ask questions regarding the molecular and developmental mechanisms underlying these independent transitions to dioecy. We start this review by examining the problem from the standpoint of a genetic engineer trying to develop dioecy, discuss various potential solutions, and compare them to models proposed in the past and based on genetic and evolutionary considerations. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040615DOI Listing
April 2018
3 Reads

Paleobotany and Global Change: Important Lessons for Species to Biomes from Vegetation Responses to Past Global Change.

Annu Rev Plant Biol 2018 04;69:761-787

Botany Department, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland; email:

Human carbon use during the next century will lead to atmospheric carbon dioxide concentrations (pCO) that have been unprecedented for the past 50-100+ million years according to fossil plant-based CO estimates. The paleobotanical record of plants offers key insights into vegetation responses to past global change, including suitable analogs for Earth's climatic future. Past global warming events have resulted in transient poleward migration at rates that are equivalent to the lowest climate velocities required for current taxa to keep pace with climate change. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040405DOI Listing

Receptor-Like Cytoplasmic Kinases: Central Players in Plant Receptor Kinase-Mediated Signaling.

Annu Rev Plant Biol 2018 04;69:267-299

State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China; email:

Receptor kinases (RKs) are of paramount importance in transmembrane signaling that governs plant reproduction, growth, development, and adaptation to diverse environmental conditions. Receptor-like cytoplasmic kinases (RLCKs), which lack extracellular ligand-binding domains, have emerged as a major class of signaling proteins that regulate plant cellular activities in response to biotic/abiotic stresses and endogenous extracellular signaling molecules. By associating with immune RKs, RLCKs regulate multiple downstream signaling nodes to orchestrate a complex array of defense responses against microbial pathogens. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040540DOI Listing
April 2018
2 Reads

Genetically Encoded Biosensors in Plants: Pathways to Discovery.

Annu Rev Plant Biol 2018 04;69:497-524

Sainsbury Laboratory, Cambridge University, Cambridge CB2 1LR, United Kingdom; email:

Genetically encoded biosensors that directly interact with a molecule of interest were first introduced more than 20 years ago with fusion proteins that served as fluorescent indicators for calcium ions. Since then, the technology has matured into a diverse array of biosensors that have been deployed to improve our spatiotemporal understanding of molecules whose dynamics have profound influence on plant physiology and development. In this review, we address several types of biosensors with a focus on genetically encoded calcium indicators, which are now the most diverse and advanced group of biosensors. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040104DOI Listing
April 2018
20 Reads

Nitrate Transport, Signaling, and Use Efficiency.

Annu Rev Plant Biol 2018 04 23;69:85-122. Epub 2018 Mar 23.

Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan; email:

Nitrogen accounts for approximately 60% of the fertilizer consumed each year; thus, it represents one of the major input costs for most nonlegume crops. Nitrate is one of the two major forms of nitrogen that plants acquire from the soil. Mechanistic insights into nitrate transport and signaling have enabled new strategies for enhancing nitrogen utilization efficiency, for lowering input costs for farming, and, more importantly, for alleviating environmental impacts (e. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040056DOI Listing
April 2018
2 Reads

Protein Quality Control in the Endoplasmic Reticulum of Plants.

Authors:
Richard Strasser

Annu Rev Plant Biol 2018 04 23;69:147-172. Epub 2018 Mar 23.

Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria; email:

The endoplasmic reticulum (ER) is the site of maturation for roughly one-third of all cellular proteins. ER-resident molecular chaperones and folding catalysts promote folding and assembly in a diverse set of newly synthesized proteins. Because these processes are error-prone, all eukaryotic cells have a quality-control system in place that constantly monitors the proteins and decides their fate. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040331DOI Listing
April 2018
9 Reads

Plant Vacuoles.

Annu Rev Plant Biol 2018 04 21;69:123-145. Epub 2018 Mar 21.

Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan; email:

Plant vacuoles are multifunctional organelles. On the one hand, most vegetative tissues develop lytic vacuoles that have a role in degradation. On the other hand, seed cells have two types of storage vacuoles: protein storage vacuoles (PSVs) in endosperm and embryonic cells and metabolite storage vacuoles in seed coats. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040508DOI Listing
April 2018
1 Read

The Physiological Basis of Drought Tolerance in Crop Plants: A Scenario-Dependent Probabilistic Approach.

Annu Rev Plant Biol 2018 04 19;69:733-759. Epub 2018 Mar 19.

INRA, Université Montpellier, Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux, F-34060 Montpellier, France; email:

Drought tolerance involves mechanisms operating at different spatial and temporal scales, from rapid stomatal closure to maintenance of crop yield. We review how short-term mechanisms are controlled for stabilizing shoot water potential and how long-term processes have been constrained by evolution or breeding to fit into acclimation strategies for specific drought scenarios. These short- or long-term feedback processes participate in trade-offs between carbon accumulation and the risk of deleterious soil water depletion. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040218DOI Listing
April 2018
1 Read

Genetic Regulation of Shoot Architecture.

Annu Rev Plant Biol 2018 04 19;69:437-468. Epub 2018 Mar 19.

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; email:

Shoot architecture is determined by the organization and activities of apical, axillary, intercalary, secondary, and inflorescence meristems and by the subsequent development of stems, leaves, shoot branches, and inflorescences. In this review, we discuss the unifying principles of hormonal and genetic control of shoot architecture including advances in our understanding of lateral branch outgrowth; control of stem elongation, thickness, and angle; and regulation of inflorescence development. We focus on recent progress made mainly in Arabidopsis thaliana, rice, pea, maize, and tomato, including the identification of new genes and mechanisms controlling shoot architecture. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040422DOI Listing
April 2018
8 Reads

Plant Malectin-Like Receptor Kinases: From Cell Wall Integrity to Immunity and Beyond.

Annu Rev Plant Biol 2018 04 14;69:301-328. Epub 2018 Mar 14.

Biocenter, Botanical Institute, University of Cologne, 50674 Cologne, Germany; email:

Plant cells are surrounded by cell walls protecting them from a myriad of environmental challenges. For successful habitat adaptation, extracellular cues are perceived at the cell wall and relayed to downstream signaling constituents to mediate dynamic cell wall remodeling and adapted intracellular responses. Plant malectin-like receptor kinases, also known as Catharanthus roseus receptor-like kinase 1-like proteins (CrRLK1Ls), take part in these perception and relay processes. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040557DOI Listing

Autophagy: The Master of Bulk and Selective Recycling.

Annu Rev Plant Biol 2018 04 14;69:173-208. Epub 2018 Mar 14.

Department of Biology, Washington University in St. Louis, St. Louis, Missouri 63130, USA; email:

Plants have evolved sophisticated mechanisms to recycle intracellular constituents, which are essential for developmental and metabolic transitions; for efficient nutrient reuse; and for the proper disposal of proteins, protein complexes, and even entire organelles that become obsolete or dysfunctional. One major route is autophagy, which employs specialized vesicles to encapsulate and deliver cytoplasmic material to the vacuole for breakdown. In the past decade, the mechanics of autophagy and the scores of components involved in autophagic vesicle assembly have been documented. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040606DOI Listing
April 2018
2 Reads

Modularity in Jasmonate Signaling for Multistress Resilience.

Annu Rev Plant Biol 2018 04 14;69:387-415. Epub 2018 Mar 14.

Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, USA; email:

The plant hormone jasmonate coordinates immune and growth responses to increase plant survival in unpredictable environments. The core jasmonate signaling pathway comprises several functional modules, including a repertoire of COI1-JAZ (CORONATINE INSENSITIVE1-JASMONATE-ZIM DOMAIN) coreceptors that couple jasmonoyl-l-isoleucine perception to the degradation of JAZ repressors, JAZ-interacting transcription factors that execute physiological responses, and multiple negative feedback loops to ensure timely termination of these responses. Here, we review the jasmonate signaling pathway with an emphasis on understanding how transcriptional responses are specific, tunable, and evolvable. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040047DOI Listing
April 2018
1 Read

Heterogeneity and Robustness in Plant Morphogenesis: From Cells to Organs.

Annu Rev Plant Biol 2018 04 5;69:469-495. Epub 2018 Mar 5.

Weill Institute for Cell and Molecular Biology and Section of Plant Biology, School of Integrative Plant Science; Cornell University, Ithaca, New York 14853, USA; email: , ,

Development is remarkably reproducible, producing organs with the same size, shape, and function repeatedly from individual to individual. For example, every flower on the Antirrhinum stalk has the same snapping dragon mouth. This reproducibility has allowed taxonomists to classify plants and animals according to their morphology. Read More

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http://www.annualreviews.org/doi/10.1146/annurev-arplant-042
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http://dx.doi.org/10.1146/annurev-arplant-042817-040517DOI Listing
April 2018
6 Reads

Diversity of Chlorophototrophic Bacteria Revealed in the Omics Era.

Annu Rev Plant Biol 2018 04 5;69:21-49. Epub 2018 Mar 5.

Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA; email:

Because of recent advances in omics methodologies, knowledge of chlorophototrophy (i.e., chlorophyll-based phototrophy) in bacteria has rapidly increased. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040500DOI Listing
April 2018
14 Reads

When Two Rights Make a Wrong: The Evolutionary Genetics of Plant Hybrid Incompatibilities.

Annu Rev Plant Biol 2018 04 5;69:707-731. Epub 2018 Mar 5.

Department of Genetics, University of Georgia, Athens, Georgia 30602, USA; email:

Hybrids between flowering plant species often exhibit reduced fitness, including sterility and inviability. Such hybrid incompatibilities create barriers to genetic exchange that can promote reproductive isolation between diverging populations and, ultimately, speciation. Additionally, hybrid breakdown opens a window into hidden molecular and evolutionary processes occurring within species. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040113DOI Listing

Preadaptation and Naturalization of Nonnative Species: Darwin's Two Fundamental Insights into Species Invasion.

Annu Rev Plant Biol 2018 04 28;69:661-684. Epub 2018 Feb 28.

Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada; email:

Predicting which nonnative species become invasive is critical for their successful management, and Charles Darwin provided predictions based on species' relatedness. However, Darwin provided two opposing predictions about the relatedness of introduced nonnatives to indigenous species. First, environmental fit is the dominant factor determining invader success; thus, we should expect that invasive species are closely related to local native residents. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040339DOI Listing
April 2018
3 Reads

Macroevolutionary Patterns of Flowering Plant Speciation and Extinction.

Annu Rev Plant Biol 2018 04 28;69:685-706. Epub 2018 Feb 28.

Laboratoire Écologie, Systématique, Évolution, Université Paris-Sud, CNRS UMR 8079, 91405 Orsay, France.

Species diversity is remarkably unevenly distributed among flowering plant lineages. Despite a growing toolbox of research methods, the reasons underlying this patchy pattern have continued to perplex plant biologists for the past two decades. In this review, we examine the present understanding of transitions in flowering plant evolution that have been proposed to influence speciation and extinction. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040348DOI Listing
April 2018
1 Read

Cell and Developmental Biology of Plant Mitogen-Activated Protein Kinases.

Annu Rev Plant Biol 2018 04 28;69:237-265. Epub 2018 Feb 28.

Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University Olomouc, 783 71 Olomouc, Czech Republic; email:

Plant mitogen-activated protein kinases (MAPKs) constitute a network of signaling cascades responsible for transducing extracellular stimuli and decoding them to dedicated cellular and developmental responses that shape the plant body. Over the last decade, we have accumulated information about how MAPK modules control the development of reproductive tissues and gametes and the embryogenic and postembryonic development of vegetative organs such as roots, root nodules, shoots, and leaves. Of key importance to understanding how MAPKs participate in developmental and environmental signaling is the characterization of their subcellular localization, their interactions with upstream signal perception mechanisms, and the means by which they target their substrates. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040314DOI Listing
April 2018
3 Reads

Essential Roles of Local Auxin Biosynthesis in Plant Development and in Adaptation to Environmental Changes.

Authors:
Yunde Zhao

Annu Rev Plant Biol 2018 04 28;69:417-435. Epub 2018 Feb 28.

Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, California 92093, USA; email:

It has been a dominant dogma in plant biology that the self-organizing polar auxin transport system is necessary and sufficient to generate auxin maxima and minima that are essential for almost all aspects of plant growth and development. However, in the past few years, it has become clear that local auxin biosynthesis is required for a suite of developmental processes, including embryogenesis, endosperm development, root development, and floral initiation and patterning. Moreover, it was discovered that local auxin biosynthesis maintains optimal plant growth in response to environmental signals, including light, temperature, pathogens, and toxic metals. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040226DOI Listing

Genomics-Informed Insights into Endosymbiotic Organelle Evolution in Photosynthetic Eukaryotes.

Annu Rev Plant Biol 2018 04 28;69:51-84. Epub 2018 Feb 28.

Institute of Plant Biochemistry, Cluster of Excellence on Plant Science (CEPLAS), Heinrich Heine University, 40225 Düsseldorf, Germany; email:

The conversion of free-living cyanobacteria to photosynthetic organelles of eukaryotic cells through endosymbiosis transformed the biosphere and eventually provided the basis for life on land. Despite the presumable advantage conferred by the acquisition of photoautotrophy through endosymbiosis, only two independent cases of primary endosymbiosis have been documented: one that gave rise to the Archaeplastida, and the other to photosynthetic species of the thecate, filose amoeba Paulinella. Here, we review recent genomics-informed insights into the primary endosymbiotic origins of cyanobacteria-derived organelles. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040209DOI Listing

Trends in Global Agricultural Land Use: Implications for Environmental Health and Food Security.

Annu Rev Plant Biol 2018 04 28;69:789-815. Epub 2018 Feb 28.

Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.

The eighteenth-century Malthusian prediction of population growth outstripping food production has not yet come to bear. Unprecedented agricultural land expansions since 1700, and technological innovations that began in the 1930s, have enabled more calorie production per capita than was ever available before in history. This remarkable success, however, has come at a great cost. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040256DOI Listing
April 2018
2 Reads

Reactive Oxygen Species in Plant Signaling.

Annu Rev Plant Biol 2018 04 28;69:209-236. Epub 2018 Feb 28.

Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, and Viikki Plant Science Centre, University of Helsinki, 00014 Helsinki, Finland; email:

As fixed organisms, plants are especially affected by changes in their environment and have consequently evolved extensive mechanisms for acclimation and adaptation. Initially considered by-products from aerobic metabolism, reactive oxygen species (ROS) have emerged as major regulatory molecules in plants and their roles in early signaling events initiated by cellular metabolic perturbation and environmental stimuli are now established. Here, we review recent advances in ROS signaling. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040322DOI Listing
April 2018
4 Reads

Exploring the Spatiotemporal Organization of Membrane Proteins in Living Plant Cells.

Annu Rev Plant Biol 2018 04 28;69:525-551. Epub 2018 Feb 28.

Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China; email:

Plasma membrane proteins have important roles in transport and signal transduction. Deciphering the spatiotemporal organization of these proteins provides crucial information for elucidating the links between the behaviors of different molecules. However, monitoring membrane proteins without disrupting their membrane environment remains difficult. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040233DOI Listing
April 2018
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Meiotic Recombination: Mixing It Up in Plants.

Annu Rev Plant Biol 2018 04 28;69:577-609. Epub 2018 Feb 28.

Department of Biology and the Integrative Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3280, USA; email:

Meiosis halves diploid chromosome numbers to haploid levels that are essential for sexual reproduction in most eukaryotes. Meiotic recombination ensures the formation of bivalents between homologous chromosomes (homologs) and their subsequent proper segregation. It also results in genetic diversity among progeny that influences evolutionary responses to selection. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040431DOI Listing

Kinesins and Myosins: Molecular Motors that Coordinate Cellular Functions in Plants.

Annu Rev Plant Biol 2018 04 28;69:329-361. Epub 2018 Feb 28.

Department of Biology and Center for Engineering Mechanobiology, Washington University, St. Louis, Missouri 63130-4899, USA; email:

Kinesins and myosins are motor proteins that can move actively along microtubules and actin filaments, respectively. Plants have evolved a unique set of motors that function as regulators and organizers of the cytoskeleton and as drivers of long-distance transport of various cellular components. Recent progress has established the full complement of motors encoded in plant genomes and has revealed valuable insights into the cellular functions of many kinesin and myosin isoforms. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040024DOI Listing
April 2018
2 Reads

The Oxylipin Pathways: Biochemistry and Function.

Annu Rev Plant Biol 2018 04 20;69:363-386. Epub 2017 Nov 20.

Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, 37077 Goettingen, Germany; email:

Plant oxylipins form a constantly growing group of signaling molecules that comprise oxygenated fatty acids and metabolites derived therefrom. In the last decade, the understanding of biosynthesis, metabolism, and action of oxylipins, especially jasmonates, has dramatically improved. Additional mechanistic insights into the action of enzymes and insights into signaling pathways have been deepened for jasmonates. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040440DOI Listing
April 2018
4 Reads

Strategies for Enhanced Crop Resistance to Insect Pests.

Authors:
Angela E Douglas

Annu Rev Plant Biol 2018 04 16;69:637-660. Epub 2017 Nov 16.

Department of Entomology and Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14850, USA; email:

Insect pests are responsible for substantial crop losses worldwide through direct damage and transmission of plant diseases, and novel approaches that complement or replace broad-spectrum chemical insecticides will facilitate the sustainable intensification of food production in the coming decades. Multiple strategies for improved crop resistance to insect pests, especially strategies relating to plant secondary metabolism and immunity and microbiome science, are becoming available. Recent advances in metabolic engineering of plant secondary chemistry offer the promise of specific toxicity or deterrence to insect pests; improved understanding of plant immunity against insects provides routes to optimize plant defenses against insects; and the microbiomes of insect pests can be exploited, either as a target or as a vehicle for delivery of insecticidal agents. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040248DOI Listing
April 2018
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Population Genomics of Herbicide Resistance: Adaptation via Evolutionary Rescue.

Annu Rev Plant Biol 2018 04 15;69:611-635. Epub 2017 Nov 15.

Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada; email: , ,

The evolution of herbicide resistance in weed populations is a highly replicated example of adaptation surmounting the race against extinction, but the factors determining its rate and nature remain poorly understood. Here, we explore theory and empirical evidence for the importance of population genetic parameters-including effective population size, dominance, mutational target size, and gene flow-in influencing the probability and mode of herbicide resistance adaptation and its variation across species. We compiled data on the number of resistance mutations across populations for 79 herbicide-resistant species. Read More

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http://dx.doi.org/10.1146/annurev-arplant-042817-040038DOI Listing
April 2018
2 Reads

My Secret Life.

Annu Rev Plant Biol 2018 04 28;69:1-20. Epub 2017 Aug 28.

Syngenta, Research Triangle Park, North Carolina 27709, USA; email:

In my early childhood, my parents gave me to my maternal grandparents for a "visit" that extended over a period of nine years. I seemed to be a fairly ordinary student in primary grades, and had to take a remedial general science class upon entering high school, my first exposure to science. It was the teacher of that class, Mr. Read More

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http://www.annualreviews.org/doi/10.1146/annurev-arplant-032
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http://dx.doi.org/10.1146/annurev-arplant-032717-090606DOI Listing
April 2018
2 Reads