4,041 results match your criteria Annals Of Botany[Journal]


Hypernodulating soybean mutant line nod4 lacking 'Autoregulation of Nodulation' (AON) has limited root-to-shoot water transport capacity.

Ann Bot 2019 Apr 7. Epub 2019 Apr 7.

Setor de Fisiologia Vegetal, LMGV, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense, Av. Alberto Lamego, Campos dos Goytacazes, Rio de Janeiro, Brazil.

Background And Aims: Although hypernodulating phenotype mutants of legumes, such as soybean, possess a high leaf N content, the large number of root nodules decreases carbohydrate availability for plant growth and seed yield. In addition, under conditions of high air vapour pressure deficit (VPD), hypernodulating plants show a limited capacity to replace water losses through transpiration, resulting in stomatal closure, and therefore decreased net photosynthetic rates. Here, we used hypernodulating (nod4) (282. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz040DOI Listing
April 2019
4 Reads

Modelling tiller growth and mortality as a sink-driven process using Ecomeristem: implications for biomass sorghum ideotyping.

Ann Bot 2019 Apr 6. Epub 2019 Apr 6.

CIRAD, UMR AGAP, PAM, Montpellier, France.

Background And Aims: Plant modelling can efficiently support ideotype conception, particularly in multi-criteria selection contexts. This is the case for biomass sorghum, implying the need to consider traits related to biomass production and quality. This study evaluated three modelling approaches for their ability to predict tiller growth, mortality and their impact, together with other morphological and physiological traits, on biomass sorghum ideotype prediction. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz038DOI Listing
April 2019
5 Reads

Succession, regression and loss: does evidence of saltwater exposure explain recent changes in the tree communities of North Carolina's Coastal Plain?

Ann Bot 2019 Apr 6. Epub 2019 Apr 6.

Duke University Department of Biology, Durham, NC, USA.

Background And Aims: Coastal plant communities globally are highly vulnerable to future sea-level rise and storm damage, but the extent to which these habitats are affected by the various environmental perturbations associated with chronic salinization remains unclear. In this study, we examine the relationship between North Carolina wetland tree community composition and basal area change and indicators of salinization such as soil salt ion content and elevation.

Methods: We surveyed 34 forest plots in forested, freshwater wetlands across the Albemarle-Pamlico Peninsula. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz039DOI Listing

Single primer enrichment technology as a tool for massive genotyping: a benchmark on black poplar and maize.

Ann Bot 2019 Mar 30. Epub 2019 Mar 30.

IGA - Istituto di Genomica Applicata - via Jacopo Linussio, Udine, Italy.

Background And Aims: The advent of molecular breeding is advocated to improve the productivity and sustainability of second-generation bioenergy crops. Advanced molecular breeding in bioenergy crops relies on the ability to massively sample the genetic diversity. Genotyping-by-sequencing has become a widely adopted method for cost-effective genotyping. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz054DOI Listing

Genotyping by sequencing can reveal the complex mosaic genomes in gene pools resulting from reticulate evolution: a case study in diploid and polyploid citrus.

Ann Bot 2019 Mar 29. Epub 2019 Mar 29.

UMR AGAP, INRA, CIRAD, Montpellier SupAgro, Université de Montpellier, Montpellier, France.

Background And Aims: Reticulate evolution, coupled with reproductive features limiting further interspecific recombinations, results in admixed mosaics of large genomic fragments from the ancestral taxa. Whole-genome sequencing (WGS) data are powerful tools to decipher such complex genomes but still too costly to be used for large populations. The aim of this work was to develop an approach to infer phylogenomic structures in diploid, triploid and tetraploid individuals from sequencing data in reduced genome complexity libraries. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz029DOI Listing

Potential involvement of root auxins in drought tolerance by modulating nocturnal and daytime water use in wheat.

Ann Bot 2019 Mar 28. Epub 2019 Mar 28.

Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium.

Background And Aims: The ability of wheat genotypes to save water by reducing their transpiration rate (TR) at times of the day with high vapour pressure deficit (VPD) has been linked to increasing yields in terminal drought environments. Further, recent evidence shows that reducing nocturnal transpiration (TRN) could amplify water saving. Previous research indicates that such traits involve a root-based hydraulic limitation, but the contribution of hormones, particularly auxin and abscisic acid (ABA), has not been explored to explain the shoot-root link. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz023DOI Listing

Evolution towards minimum ovule size? Ovule size variations and the relative sizes of ovules to seeds.

Ann Bot 2019 Mar 28. Epub 2019 Mar 28.

Graduate School of Life Sciences, Tohoku University, Aoba, Sendai, Japan.

Background And Aims: Is there selection minimizing the costs of ovule production? Such selection should lead to a smaller ovule size in relation to seed size and, at the same time, smaller variation in ovule size within plants, the latter because the minimum structures and resources for functioning of ovules should be the same among ovules. Additionally, within species, ovule size should not depend on the plant's resource status.

Methods: To confirm these predictions, we examined ovule and seed production for a variety of species. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz031DOI Listing

Simulated seawater flooding reduces oilseed rape growth, yield and progeny performance.

Ann Bot 2019 Mar 28. Epub 2019 Mar 28.

School of Biological and Marine Sciences, University of Plymouth, Plymouth PL4 8AA, UK.

Background And Aims: Of the many threats to global food security, one of the most pressing is the increased incidence of extreme weather events. In addition to extreme rainfall, a combination of global sea level rise and storm surge is likely to result in frequent episodes of seawater flooding in arable systems along low-lying coasts. Our aim was to elucidate the effects of simulated seawater and freshwater flooding on the survival, growth and reproductive potential of four cultivars of the important seed crop, Brassica napus [canola, or oilseed rape (OSR)]. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz026DOI Listing
March 2019
2 Reads

Population structure of Betula albosinensis and Betula platyphylla: evidence for hybridization and a cryptic lineage.

Ann Bot 2019 Mar 27. Epub 2019 Mar 27.

College of Forestry, Shandong Agricultural University, Tai'an city, Shandong province, China.

Background And Aims: Differences in local abundance and ploidy level are predicted to impact the direction of introgression between species. Here, we tested these hypotheses on populations of Betula albosinensis (red birch) and Betula platyphylla (white birch) which were thought to differ in ploidy level, the former being tetraploid and the latter diploid.

Methods: We sampled 391 birch individuals from nine localities in China, and classified them into species based on leaf morphology. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz024DOI Listing
March 2019
3.654 Impact Factor

Fire and legume germination in a tropical savanna: ecological and historical factors.

Ann Bot 2019 Mar 20. Epub 2019 Mar 20.

Universidade Estadual Paulista (UNESP), Instituto de Biociências, Lab of Vegetation Ecology, Rio Claro, Brazil.

Background And Aims: In many flammable ecosystems, physically dormant seeds show dormancy-break patterns tied to fire, but the link between heat shock and germination in the tropical savannas of Africa and South America remains controversial. Seed heat tolerance is important, preventing seed mortality during fire passage, and is usually predicted by seed traits. This study investigated the role of fire frequency (ecological effects) and seed traits through phylogenetic comparison (historical effects), in determining post-fire germination and seed mortality in legume species of the Cerrado, a tropical savanna-forest mosaic. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz028DOI Listing
March 2019
1 Read

Is size an issue of time? Relationship between the duration of xylem development and cell traits.

Ann Bot 2019 Mar 14. Epub 2019 Mar 14.

Département des Sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada.

Background And Aims: Secondary growth is a process related to the formation of new cells that increase in size and wall thickness during xylogenesis. Temporal dynamics of wood formation influence cell traits, in turn affecting cell patterns across the tree ring. We verified the hypothesis that cell diameter and cell wall thickness are positively correlated with the duration of their differentiation phases. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz032DOI Listing
March 2019
3 Reads

Plant Cuttings.

Authors:

Ann Bot 2019 Mar;123(4):iv-viii

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz034DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6417466PMC

The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives.

Ann Bot 2019 Mar 14. Epub 2019 Mar 14.

Plant Science and Biodiversity Centre, Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovak Republic.

Background And Aims: Cardamine occulta (Brassicaceae) is an octoploid weedy species (2n = 8x = 64) originated in Eastern Asia. It has been introduced to other continents including Europe and considered to be an invasive species. Despite its wide distribution, the polyploid origin of C. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz019DOI Listing

Picky carnivorous plants? Investigating preferences for preys' trophic levels - a stable isotope natural abundance approach with two terrestrial and two aquatic Lentibulariaceae tested in Central Europe.

Ann Bot 2019 Mar 13. Epub 2019 Mar 13.

Laboratory of Isotope Biogeochemistry, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany.

Background And Aims: Stable isotope two-source linear mixing models are frequently used to calculate the nutrient-uptake efficiency of carnivorous plants from pooled prey. This study aimed to separate prey into three trophic levels as pooled prey limits statements about the contribution of a specific trophic level to the nutrition of carnivorous plants. Phytoplankton were used as an autotrophic reference for aquatic plants as the lack of suitable reference plants impedes calculation of their efficiency. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz022DOI Listing

Leaf heteroblasty in Passiflora edulis as revealed by metabolic profiling and expression analyses of the microRNAs miR156 and miR172.

Ann Bot 2019 Mar 12. Epub 2019 Mar 12.

Departamento de Biologia Vegetal/Instituto de Biotecnologia Aplicada a Agropecuária (BIOAGRO), Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.

Background And Aims: Juvenile-to-adult phase transition is marked by changes in leaf morphology, mostly due to the temporal development of the shoot apical meristem, a phenomenon known as heteroblasty. Sugars and microRNA-controlled modules are components of the heteroblastic process in Arabidopsis thaliana leaves. However, our understanding about their roles during phase-changing in other species, such as Passiflora edulis, remains limited. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz025DOI Listing
March 2019
2 Reads

Stomatal frequency of Quercus glauca from three material sources shows the same inverse response to atmospheric pCO2.

Ann Bot 2019 Mar 12. Epub 2019 Mar 12.

CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, China.

Background And Aims: The inverse correlation between atmospheric CO2 partial pressure (pCO2) and stomatal frequency in many plants has been widely used to estimate palaeo-CO2 levels. However, apparent discrepancies exist among the obtained estimates. This study attempts to find a potential proxy for palaeo-CO2 concentrations by analysing the stomatal frequency of Quercus glauca (section Cyclobalanopsis, Fagaceae), a dominant species in East Asian sub-tropical forests with abundant fossil relatives. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz020DOI Listing

Ant pollination of Paepalanthus lundii (Eriocaulaceae) in Brazilian savanna.

Ann Bot 2019 Mar 10. Epub 2019 Mar 10.

Instituto de Biologia, LECI (Laboratório de Ecologia Comportamental e de Interações), Pós-graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, CEP 38400-902, Uberlândia, MG, Brazil.

Background And Aims: Ant-plant associations are widely diverse and distributed throughout the world, leading to complex ecological networks. Regarding ant-plant mutualism, ant pollination is a very rare interaction and few studies have shown the role of ants as pollinators. Therefore, we aimed to evaluate the role of ants as effective pollinators of Paepalanthus lundii (Eriocaulaceae) in a Brazilian savanna. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz021DOI Listing
March 2019
6 Reads

Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae).

Ann Bot 2019 Mar 10. Epub 2019 Mar 10.

Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.

Background And Aims: Tertiary relict and Arctic/circumboreal distributions are two major patterns of Northern Hemisphere intercontinental disjunctions with very different histories. Each has been well researched, but members of one biome have generally not been incorporated in the biogeographical analyses of the other, and links or transitions between these two biomes have rarely been addressed.

Methods: Phylogenies of Chimaphila were generated based on cpDNA and nuclear ITS, using Bayesian and maximum likelihood methods. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz018DOI Listing
March 2019
3 Reads

Duplication and selection in β-ketoacyl-ACP synthase gene lineages in the sexually deceptive Chiloglottis (Orchidaceace).

Ann Bot 2019 Feb 21. Epub 2019 Feb 21.

Ecology and Evolution, Research School of Biology, The Australian National University, Acton, Australia.

Background And Aims: The processes of gene duplication, followed by divergence and selection, probably underpin the evolution of floral volatiles crucial to plant-insect interactions. The Australian sexually deceptive Chiloglottis orchids use a class of 2,5-dialkylcyclohexan-1,3-dione volatiles or 'chiloglottones' to attract specific male wasp pollinators. Here, we explore the expression and evolution of fatty acid pathway genes implicated in chiloglottone biosynthesis. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz013DOI Listing
February 2019
4 Reads

Phytochrome B enhances plant growth, biomass and grain yield in field-grown maize.

Ann Bot 2019 Feb 19. Epub 2019 Feb 19.

Cátedra de Cerealicultura, Facultad de Agronomía, UBA, Ciudad Autónoma de Buenos Aires, Argentina.

Background And Aims: Phytochrome B (phyB) is a photosensory receptor important for the control of plant plasticity and resource partitioning. Whether phyB is required to optimize plant biomass accumulation in agricultural crops exposed to full sunlight is unknown. Here we investigated the impact of mutations in the genes that encode either phyB1 or phyB2 on plant growth and grain yield in field crops of Zea mays sown at contrasting population densities. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz015DOI Listing
February 2019

Reproductive assurance weakens pollinator-mediated selection on flower size in an annual mixed-mating species.

Ann Bot 2019 Feb 19. Epub 2019 Feb 19.

Grupo de Ecología de la Polinización, Universidad Nacional del Comahue and INIBIOMA-CONICET, Río Negro, Argentina.

Background And Aims: In animal-pollinated plants, direct and indirect selection for large and small flowers in predominantly outcrossing and selfing species, respectively, is a common consequence of pollen limitation (PL). However, many hermaphroditic species show a mixed-mating system known as delayed selfing, which provides reproductive assurance (RA) only when outcrossing is not realized. Although RA is expected to reduce pollinator-mediated selection towards larger flowers, the consequences of delayed selfing for selection on flower size in mixed-mating species remain overlooked. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz014DOI Listing
February 2019

Resource allocation trade-offs and the loss of chemical defences during apple domestication.

Ann Bot 2019 Feb 16. Epub 2019 Feb 16.

Department of Entomology, Cornell University, Ithaca, USA.

Background And Aims: Most crops have been dramatically altered from their wild ancestors with the primary goal of increasing harvestable yield. A long-held hypothesis is that increased allocation to yield has reduced plant investment in defence and resulted in crops that are highly susceptible to pests. However, clear demonstrations of these trade-offs have been elusive due to the many selective pressures that occur concurrently during crop domestication. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz010DOI Listing
February 2019
3 Reads

Plant Cuttings.

Authors:
Nigel Chaffey

Ann Bot 2019 Feb;123(3):iv-vii

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377093PMC
February 2019

Optimizing the bioenergy water footprint by selecting SRC willow canopy phenotypes: regional scenario simulations.

Ann Bot 2019 Feb 13. Epub 2019 Feb 13.

Department of Sustainable Agriculture Sciences, Rothamsted Research, Harpenden, UK.

Background And Aims: Bioenergy is central for the future energy mix to mitigate climate change impacts; however, its intricate link with the water cycle calls for an evaluation of the carbon-water nexus in biomass production. The great challenge is to optimize trade-offs between carbon harvest and water use by choosing cultivars that combine low water use with high productivity.

Methods: Regional scenarios were simulated over a range of willow genotype × environment interactions for the major UK soil × climate variations with the process-based model LUCASS. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz006DOI Listing
February 2019

Estimating the importance of maize root hairs in low phosphorus conditions and under drought.

Ann Bot 2019 Feb 12. Epub 2019 Feb 12.

Institute of Crop Science, Nutritional Crop Physiology, University of Hohenheim, Fruwirthstr. 20, 70593 Stuttgart, Germany.

Background And Aims: Root hairs are single-cell extensions of the epidermis that face into the soil and increase the root-soil contact surface. Root hairs enlarge the rhizosphere radially and are very important for taking up water and sparingly soluble nutrients, such as the poorly soil-mobile phosphate. In order to quantify the importance of root hairs for maize, a mutant and the corresponding wild type were compared. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz011DOI Listing
February 2019
26 Reads

Molecular and physiological control of adventitious rooting in cuttings: phytohormone action meets resource allocation.

Ann Bot 2019 Feb 11. Epub 2019 Feb 11.

Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, OT Gatersleben, Stadt Seeland, Germany.

Background: Adventitious root (AR) formation in excised plant parts is a bottleneck for survival of isolated plant fragments. AR formation plays an important ecological role and is a critical process in cuttings for the clonal propagation of horticultural and forestry crops. Therefore, understanding the regulation of excision-induced AR formation is essential for sustainable and efficient utilization of plant genetic resources. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy234DOI Listing
February 2019

Deceptive strategy in Dactylorhiza orchids: multidirectional evolution of floral chemistry.

Ann Bot 2019 Feb 11. Epub 2019 Feb 11.

University of Bialystok, Faculty of Biology and Chemistry, Institute of Biology, Bialystok, Poland.

Background And Aims: The deception strategies of orchids remain poorly understood, especially in regard to the chemical compounds emitted from their flowers and their interaction with various taxonomic groups of pollinators. We investigated the phylogenetic relationships and compared the variation of floral chemical compounds between food-deceptive Dactylorhiza taxa (D. incarnata var. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz003DOI Listing
February 2019

Genetic analysis of tomato root colonization by arbuscular mycorrhizal fungi.

Ann Bot 2019 Feb 9. Epub 2019 Feb 9.

Université catholique de Louvain, Earth and Life Institute, Mycology, Croix du Sud, Louvain-la-Neuve, Belgium.

Background And Aims: Arbuscular mycorrhizal fungi (AMF) play an important role in plant nutrition and protection against pests and diseases, as well as in soil structuration, nutrient cycling and, generally speaking, in sustainable agriculture, particularly under drought, salinity and low input or organic agriculture. However, little is known about the genetics of the AMF-plant association in tomato. The aim of this study was the genetic analysis of root AMF colonization in tomato via the detection of the quantitative trait loci (QTLs) involved. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy240DOI Listing
February 2019
4 Reads

Response of xerophytic plants to glacial cycles in southern South America.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile.

Background And Aim: Quaternary glaciations strongly affected the distribution of species from arid and semi-arid environments, as temperature drops were accompanied by strong fluctuations in rainfall. In this study, we examined the response of xerophytic species to glacial cycles, determining the genetic patterns and climatic niche of Echinopsis chiloensis var. chiloensis, an endemic columnar cactus of arid and semi-arid regions of Chile. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy235DOI Listing
February 2019
2 Reads

The role of fruit heteromorphism in the naturalization of Asteraceae.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Ecology, Department of Biology, University of Konstanz, Konstanz, Germany.

Background And Aims: Fruit heteromorphism is considered to be a bet-hedging strategy to cope with spatially or temporally heterogeneous environments. The different behaviours of the fruit morphs of the same species might also be beneficial during naturalization, once the species has been introduced to a new range. Yet, no study to date has tested the association between fruit heteromorphism and global-scale naturalization success for a large set of plant species. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz012DOI Listing
February 2019
1 Read

CBL-INTERACTING PROTEIN KINASE 9 regulates ammonium-dependent root growth downstream of IDD10 in rice (Oryza sativa).

Ann Bot 2019 Jan 31. Epub 2019 Jan 31.

Division of Applied Life Science (BK21 Program), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju, Korea.

Background And Aims: INDETERMINATE DOMAIN 10 (IDD10) is a key transcription factor gene that activates the expression of a large number of NH4+-responsive genes including AMMONIUM TRANSPORTER 1;2 (AMT1;2). Primary root growth of rice (Oryza sativa) idd10 mutants is hypersensitive to NH4+. The involvement of CALCINEURIN B-LIKE INTERACTING PROTEIN KINASE (CIPK) genes in the action of IDD10 on NH4+-mediated root growth was investigated. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcy242DOI Listing
January 2019
9 Reads

Comparison of mechanisms of reproductive interference in Taraxacum.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Nagoya University Museum, Chikusa-ku, Nagoya, Japan.

Background And Aims: Reproductive interference may reduce fitness of either of the involved species, with potentially important ecological and evolutionary consequences. Except for the effect of shared pollinators on reproductive success, however, mechanisms underlying reproductive interference have been little studied, even though the severity of its impact may depend on the specific mechanism. The aim of this study was therefore to explore the mechanisms of reproductive interference between Taraxacum japonicum (native to Japan) and Taraxacum officinale (alien). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz007DOI Listing
February 2019

Enset in Ethiopia: a poorly characterized but resilient starch staple.

Ann Bot 2019 Jan 31. Epub 2019 Jan 31.

Royal Botanic Gardens, Kew, Richmond, Surrey, UK.

Background: Enset (Ensete ventricosum, Musaceae) is an African crop that currently provides the staple food for approx. 20 million Ethiopians. Whilst wild enset grows over much of East and Southern Africa and the genus extends across Asia to China, it has only ever been domesticated in the Ethiopian Highlands. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy214DOI Listing
January 2019

Dynamic changes in ABA content in water-stressed Populus nigra: effects on carbon fixation and soluble carbohydrates.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Trees and Timber Institute, National Research Council of Italy, Sesto Fiorentino (FI), Italy.

Background And Aims: Hydraulic and chemical signals operate in tandem to regulate systemic plant responses to drought. Transport of abscisic acid (ABA) through the xylem and phloem from the root to shoot has been suggested to serve as the main signal of water deficit. There is evidence that ABA and its ABA-glycosyl-ester (ABA-GE) are also formed in leaves and stems through the chloroplastic 2-C-methylerythritol-5-phosphate (MEP) pathway. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz005DOI Listing
February 2019
1 Read

High SNP diversity in the non-toxic indigenous Jatropha curcas germplasm widens the potential of this upcoming major biofuel crop species.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Plant Conservation and Population Biology, Biology Department, KU Leuven, Leuven, Belgium.

Background And Aims: Jatropha curcas (jatropha) is an oil crop cultivated in (sub)tropical regions around the world, and holds great promise as a renewable energy source. However, efforts to fully commercialize jatropha are currently hampered by the lack of genetic diversity in the extant breeding germplasm, and by the toxicity of its seeds meaning that its seed cake cannot be used as a protein source in animal feed, among other constraints. In Mexico, the species' native range, there are jatropha plants whose seeds are used to prepare traditional meals. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz008DOI Listing
February 2019

Integrating a newly developed BAC-based physical mapping resource for Lolium perenne with a genome-wide association study across a L. perenne European ecotype collection identifies genomic contexts associated with agriculturally important traits.

Ann Bot 2019 Feb 2. Epub 2019 Feb 2.

Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK.

Background And Aims: Lolium perenne (perennial ryegrass) is the most widely cultivated forage and amenity grass species in temperate areas worldwide and there is a need to understand the genetic architectures of key agricultural traits and crop characteristics that deliver wider environmental services. Our aim was to identify genomic regions associated with agriculturally important traits by integrating a bacterial artificial chromosome (BAC)-based physical map with a genome-wide association study (GWAS).

Methods: BAC-based physical maps for L. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy230DOI Listing
February 2019
1 Read

Combined impacts of prolonged drought and warming on plant size and foliar chemistry.

Ann Bot 2019 Jan 30. Epub 2019 Jan 30.

Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany.

Background And Aims: Future shifts in precipitation regimes and temperature are expected to affect plant traits dramatically. To date, many studies have explored the effects of acute stresses, but few have investigated the consequences of prolonged shifts in climatic conditions on plant growth and chemistry.

Methods: Plant size and metabolite profiles were assessed on naturally occurring Plantago lanceolata plants growing under different precipitation (ambient, 50 % less than ambient = drought) and temperature (ambient, +0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz004DOI Listing
January 2019
1 Read

Deep root growth, ABA adjustments and root water uptake response to soil water deficit in giant reed.

Ann Bot 2019 Jan 29. Epub 2019 Jan 29.

Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy.

Background And Aims: Giant reed (Arundo donax L.) is a deep-rooted crop that can survive prolonged dry periods probably as a result of its capacity to uptake water from below ground, but specific information on the functioning of deep/shallow roots is missing. The objective of this study was to understand the dynamic interrelationships of root water acquisition, canopy water conservation and abscisic acid (ABA) signals from both shallow and deep roots. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcz001DOI Listing
January 2019

Plant Cuttings.

Authors:

Ann Bot 2019 Jan;123(1):v-vii

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy239DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344083PMC
January 2019

The nature of the progression of drought stress drives differential metabolomic responses in Populus deltoides.

Ann Bot 2019 Jan 23. Epub 2019 Jan 23.

Oak Ridge National Laboratory, Oak Ridge, TN, USA.

Background And Aims: The use of woody crops for Quad-level (approx. 1 × 1018 J) energy production will require marginal agricultural lands that experience recurrent periods of water stress. Populus species have the capacity to increase dehydration tolerance by lowering osmotic potential via osmotic adjustment. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcz002DOI Listing
January 2019
4 Reads

Arabidopsis species deploy distinct strategies to cope with drought stress.

Ann Bot 2019 Jan 19. Epub 2019 Jan 19.

Institute of Botany, Biozentrum, University of Cologne, Cologne, Germany.

Background And Aims: Water limitation is an important determinant of the distribution, abundance and diversity of plant species. Yet, little is known about how the response to limiting water supply changes among closely related plant species with distinct ecological preferences. Comparison of the model annual species Arabidopsis thaliana with its close perennial relatives A. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/aob/advance-article/doi/10.1093/aob
Publisher Site
http://dx.doi.org/10.1093/aob/mcy237DOI Listing
January 2019
10 Reads

WALTer: a three-dimensional wheat model to study competition for light through the prediction of tillering dynamics.

Ann Bot 2019 Jan 10. Epub 2019 Jan 10.

UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, Thiverval-Grignon, France.

Background And Aims: Branching is a main morphogenetic process involved in the adaptation of plants to the environment. In grasses, tillering is divided into three phases: tiller emergence, cessation of tillering and tiller regression. Understanding and prediction of the tillering process is a major challenge to better control cereal yields. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy226DOI Listing
January 2019
1 Read
3.654 Impact Factor

Evolutionary constraints on disparity of ericaceous pollen grains.

Ann Bot 2019 Jan 8. Epub 2019 Jan 8.

CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.

Background And Aims: Flowering plants show a high diversity of pollen morphology, assumed to reflect not only variations in the underlying design, but also stress imposed by ecological conditions related to pollen survival and germination. Both components are expected to constrain the accumulation of pollen disparity. However, this assumption has rarely been tested using empirical data. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy212DOI Listing
January 2019

Increased water use efficiency and water productivity of arabidopsis by abscisic acid receptors from Populus canescens.

Ann Bot 2019 Jan 8. Epub 2019 Jan 8.

Lehrstuhl für Botanik, Technische Universität München, Emil-Ramann Straße, Freising, Germany.

Background And Aims: Water deficit is the single most important factor limiting plant productivity in the field. Poplar is a crop used for second-generation bioenergy production that can be cultivated on marginal land without competing for land use in food production. Poplar has a high demand for water, which makes improving its water use efficiency (WUE) an attractive goal. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy225DOI Listing
January 2019
1 Read

Plant Cuttings.

Authors:

Ann Bot 2018 Dec;122(7):iv-vii

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy236DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6324741PMC
December 2018

Increasing the benefits of species diversity in multispecies temporary grasslands by increasing within-species diversity.

Ann Bot 2019 Jan 5. Epub 2019 Jan 5.

P3F UR 004 - INRA - Le Chêne RD150, F-86600 Lusignan, France.

Background And Aims: The positive effects of species diversity on the functioning and production of ecosystems have been discussed widely in the literature. In agriculture, these effects are increasingly being applied to mixed-species crops and particularly to temporary grasslands. However, the effects of increases in genetic diversity (i. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy227DOI Listing
January 2019
1 Read

Long proleptic and sylleptic shoots in peach (Prunus persica L. Batsch) trees have similar, predetermined, maximum numbers of nodes and bud fate patterns.

Ann Bot 2019 Jan 3. Epub 2019 Jan 3.

Department of Plant Sciences, University of California, Davis, CA, USA.

Background And Aims: In peach (Prunus persica) trees, three types of shoots can be distinguished depending on the time of their appearance: sylleptic, proleptic and epicormic. On proleptic shoots, an average of ten phytomers are preformed in dormant buds prior to shoot growth after bud-break, whereas all phytomers are considered neoformed in sylleptic and epicormic shoots. However, casual observations indicated that proleptic and sylleptic shoots appear quite similar in number of phytomers and structure in spite of their different origins. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy232DOI Listing
January 2019

Collecting wild Miscanthus germplasm in Asia for crop improvement and conservation in Europe whilst adhering to the guidelines of the United Nations' Convention on Biological Diversity.

Ann Bot 2018 Dec 22. Epub 2018 Dec 22.

Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Plas Gogerddan, Aberystwyth, UK.

Background And Aims: Germplasm with diverse, agronomically relevant traits forms the foundation of a successful plant breeding programme. Since 1993, the United Nations has been advocating the implementation of the Convention on Biological Diversity (CBD) and the subsequent 2002 Bonn Guidelines as international best practice on germplasm collection and use. In 2006, a European team made an expedition to Asia to collect wild germplasm of Miscanthus, a C4 perennial rhizomatous grass, for breeding an environmentally adaptable, resilient and high-yielding bioenergy crop. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy231DOI Listing
December 2018
6 Reads

Root and shoot variation in relation to potential intermittent drought adaptation of Mesoamerican wild common bean (Phaseolus vulgaris L.).

Ann Bot 2018 Dec 31. Epub 2018 Dec 31.

University of California, Department of Plant Sciences/Mail Stop 1, Section of Crop & Ecosystem Sciences, Davis, CA, USA.

Background: Wild crop relatives have been potentially subjected to stresses on an evolutionary time scale prior to domestication. Among these stresses, drought is one of the main factors limiting crop productivity and its impact is likely to increase under current scenarios of global climate change. We sought to determine to what extent wild common bean (Phaseolus vulgaris) exhibited adaptation to drought stress, whether this potential adaptation is dependent on the climatic conditions of the location of origin of individual populations, and to what extent domesticated common bean reflects potential drought adaptation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy221DOI Listing
December 2018

A function for the pleurogram in physically dormant seeds.

Ann Bot 2018 Dec 15. Epub 2018 Dec 15.

Departamento de Botânica, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.

Background And Aims: Different structures have been shown to act as a water gap in seeds with physical dormancy (PY), and in Fabaceae they are commonly located in the hilar region. However, the function of the pleurogram, a structure in the extra-hilar region that is common in legume seeds, remains unknown. Our aims were to review the literature for occurrence of the pleurogram in Fabaceae, determine if the pleurogram can open, and compare the functional morpho-anatomy of water gaps in seeds of 11 Senna species. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/aob/mcy222DOI Listing
December 2018
1 Read