31,064 results match your criteria Plant physiology[Journal]


A Critical Role of Sodium Flux via the Plasma Membrane Na+/H+ Exchanger SOS1 in the Salt Tolerance of Rice.

Plant Physiol 2019 Apr 16. Epub 2019 Apr 16.

Instituto de Bioquímica Vegetal y Fotosíntesis CITY: Sevilla POSTAL_CODE: 41092 Spain [ES].

Rice (Oryza sativa) stands among the world's most important crop species. Rice is salt-sensitive and the undue accumulation of sodium ions (Na+) in shoots has the strongest negative correlation with rice productivity under long-term salinity. The plasma membrane Na+/H+ exchanger protein SOS1 is the sole Na+ efflux transporter that has been genetically characterized to date. Read More

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http://dx.doi.org/10.1104/pp.19.00324DOI Listing

Hypermorphic SERK1 mutations function via a SOBIR1 pathway to activate floral abscission signaling.

Plant Physiol 2019 Apr 11. Epub 2019 Apr 11.

University of Missouri CITY: Columbia STATE: Missouri POSTAL_CODE: 65211 United States Of America [US]

In Arabidopsis (Arabidopsis thaliana), the abscission of floral organs is regulated by two related receptor-like protein kinases, HAESA (HAE) and HAESA-like 2 (HSL2). In complex with members of the SERK family of co-receptor protein kinases, HAE and HSL2 are activated when bound by INFLORESCENCE DEFICIENT IN ABSICSSION (IDA), a proteolytically processed peptide ligand, activating the expression of genes encoding secreted cell wall remodeling and hydrolase enzymes. hae hsl2 mutants fail to induce expression of these genes and retain floral organs indefinitely. Read More

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http://dx.doi.org/10.1104/pp.18.01328DOI Listing

Golgi localization of GnTI requires a polar amino acid residue within its transmembrane domain.

Plant Physiol 2019 Apr 10. Epub 2019 Apr 10.

University of Natural Resources and Life Sciences Vienna CITY: Vienna POSTAL_CODE: 1190 Austria [AT]

The Golgi apparatus consists of stacked cisternae filled with enzymes to facilitate the sequential and highly controlled modification of glycans from proteins that transit through the organelle. Although the glycan processing pathways have been extensively studied, the underlying mechanisms that concentrate Golgi resident glycosyltransferases and glycosidases in distinct Golgi compartments are unclear. The single-pass transmembrane domain of N-acetylglucosaminyltransferase I (GnTI) accounts for its steady-state distribution in the cis/medial-Golgi. Read More

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http://dx.doi.org/10.1104/pp.19.00310DOI Listing

GAST proteins evolved through successive conjugation of novel motifs and their sub-functionalization.

Plant Physiol 2019 Apr 10. Epub 2019 Apr 10.

National Institute Of Plant Genome Research CITY: New Delhi STATE: Delhi POSTAL_CODE: 110067 India [IN]

Gibberellic Acid Stimulated Transcript (GAST)-like genes encode small polypeptides, some of which have been implicated in diverse biological processes regulating plant growth and development. However, the occurrence of GASTs among plants, their protein structures, and the mechanisms by which they evolved remain elusive. Here, using a customized workflow, we report genes encoding GAST proteins, identify novel motifs and evolutionary patterns contributing to sub-functionalization of GAST domains, and explore functional conservation across diverse plants. Read More

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http://dx.doi.org/10.1104/pp.19.00305DOI Listing

Gcorn plant: a database for retrieving functional and evolutionary traits of plant genes.

Plant Physiol 2019 Apr 10. Epub 2019 Apr 10.

Nara Institute of Science and Technology CITY: Ikoma Japan [JP].

Gene homology helps us understand gene function and speciation. The number of plant genes and species registered in public data-banks is continuously increasing. It is useful to associate homologous genes of various plants to better understand plant speciation. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01370
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http://dx.doi.org/10.1104/pp.18.01370DOI Listing
April 2019
70 Reads

Down-regulation of the Sucrose Transporter CsSUT1 Causes Male Sterility by Altering Carbohydrate Supply.

Plant Physiol 2019 Apr 9. Epub 2019 Apr 9.

China Agricultural University CITY: Beijing POSTAL_CODE: 100193 China [CN]

In plants, male sterility is an important agronomic trait, especially in hybrid crop production. Many factors are known to affect crop male sterility, but it remains unclear whether sucrose transporters (SUTs) participate directly in this process. Here, we identified and functionally characterized the cucumber (Cucumis sativus) CsSUT1, a typical plasma membrane-localized energy-dependent high-affinity sucrose-H+ symporter. Read More

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http://dx.doi.org/10.1104/pp.19.00317DOI Listing
April 2019
2 Reads

Methyl salicylate glucosylation regulates plant defense signalling and systemic acquired resistance.

Plant Physiol 2019 Apr 8. Epub 2019 Apr 8.

Shandong University CITY: Qingdao POSTAL_CODE: 266237 China [CN]

Plant systemic acquired resistance (SAR) provides an efficient broad-spectrum immune response to pathogens. SAR involves mobile signal molecules that are generated by infected tissues and transported to systemic tissues. Methyl salicylate (MeSA), a molecule that can be converted to salicylic acid (SA), is an essential signal for establishing SAR, particularly under a short period of exposure to light after pathogen infection. Read More

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http://dx.doi.org/10.1104/pp.19.00091DOI Listing

Characterization and cloning of grape circular RNAs identified the cold resistance-related Vv-circATS1.

Plant Physiol 2019 Apr 8. Epub 2019 Apr 8.

Shanghai Jiao Tong University CITY: Shanghai China [CN]

Circular RNAs (circRNAs) are widely distributed and play essential roles in a series of developmental processes, although none have been identified or characterized in grapevine (Vitis vinifera L.). In this study, we characterized the function of grape circRNA and uncovered thousands of putative back-splicing sites by global transcriptome analysis. Read More

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http://dx.doi.org/10.1104/pp.18.01331DOI Listing
April 2019
1 Read

The hydrogren isotope composition δ2H reflects plant performance.

Plant Physiol 2019 Apr 5. Epub 2019 Apr 5.

University of Barcelona CITY: Barcelona POSTAL_CODE: 8028 Spain [ES]

The stable carbon (δ13C) and oxygen (δ18O) isotope compositions in plant matter reflect photosynthetic and transpirative conditions in plants, respectively. However, baseline information on hydrogen isotope composition (δ2H) and what it can tell us about plant performance is uneven and scarce. Using durum wheat, this study evaluates the effect of different water and nitrogen growing field conditions on transpiration and how this influences the performance of δ2H in autotrophic (flag leaf), mixotrophic (ears) and heterotrophic (grains and roots) organs compared to the δ13C and δ18O in the same organs. Read More

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http://dx.doi.org/10.1104/pp.19.00238DOI Listing

Characterization of Soybean STAY-GREEN Genes in Susceptibility to Foliar Chlorosis of Sudden Death Syndrome.

Plant Physiol 2019 Apr 5. Epub 2019 Apr 5.

Michigan State University CITY: East Lansing STATE: MI United States Of America [US]

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http://dx.doi.org/10.1104/pp.19.00046DOI Listing

Multi-omics analysis reveals sequential roles for ABA during seed maturation.

Plant Physiol 2019 Apr 4. Epub 2019 Apr 4.

INRA, Institut Jean-Pierre Bourgin CITY: Versailles POSTAL_CODE: 78026 France [FR]

Abscisic acid (ABA) is an important hormone for seed development and germination whose physiological action is modulated by its endogenous levels. Cleavage of carotenoid precursors by 9-cis epoxycarotenoid dioxygenase (NCED) and inactivation of ABA by ABA 8'-hydroxylase (CYP707A) are key regulatory metabolic steps. In Arabidopsis (Arabidopsis thaliana), both enzymes are encoded by multigene families, having distinctive expression patterns. Read More

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http://dx.doi.org/10.1104/pp.19.00338DOI Listing
April 2019
2 Reads

Developmental Programming of Thermonastic Leaf Movement.

Plant Physiol 2019 Apr 4. Epub 2019 Apr 4.

Seoul National University CITY: Seoul POSTAL_CODE: 08826 Korea (South), Republic Of

Plants exhibit diverse polar behaviors in response to directional and non-directional environmental signals, termed tropic and nastic movements, respectively. The ways in which plants incorporate directional information into tropic behaviors is well understood, but it is less well understood how non-directional stimuli, such as ambient temperatures, specify the polarity of nastic behaviors. Here, we demonstrate that a developmentally programmed polarity of auxin flow underlies thermo-induced leaf hyponasty in Arabidopsis (Arabidopsis thaliana). Read More

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http://dx.doi.org/10.1104/pp.19.00139DOI Listing
April 2019
1 Read

The spatial distribution of chlorophyll in leaves.

Plant Physiol 2019 Apr 3. Epub 2019 Apr 3.

Yale University CITY: New Haven STATE: Connecticut POSTAL_CODE: 06511 United States Of America [US]

Measuring and modeling the spatial distribution of chlorophyll within the leaf is critical for understanding the relationship between leaf structure and carbon assimilation, the relative investments in leaf tissues from the perspective of leaf economics theory, and towards the emerging application of in silico carbon assimilation models. Yet, spatially-resolved leaf chlorophyll distribution data are limited. Here, we used epi-illumination fluorescence microscopy to estimate relative chlorophyll concentration as a function of mesophyll depth for fifty-seven plant taxa. Read More

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http://dx.doi.org/10.1104/pp.19.00094DOI Listing

Roles of the Clock in Controlling Starch Metabolism.

Authors:
Masanori Izumi

Plant Physiol 2019 04;179(4):1441-1443

Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan

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http://dx.doi.org/10.1104/pp.19.00166DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446776PMC

Sequencing Plant Transcriptomes at Single-Cell Resolution Allows Unprecedented Characterization of Genetic and Developmental Cellular Processes.

Authors:
Jose M Celedon

Plant Physiol 2019 04;179(4):1439-1440

Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4

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http://dx.doi.org/10.1104/pp.19.00199DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446785PMC

Two Pathways for Trafficking the Borate Receptor BOR1.

Authors:
Emily R Larson

Plant Physiol 2019 04;179(4):1437-1438

Laboratory of Plant Physiology and Biophysics Institute of Molecular, Cell, and Systems Biology University of Glasgow University Avenue, Bower Building, Glasgow G20 8NN, United Kingdom

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http://dx.doi.org/10.1104/pp.19.00180DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446775PMC
April 2019
1 Read

Prohibitin Shuttles Between Mitochondria and the Nucleus to Control Genome Stability During the Cell Cycle.

Authors:
Yunqing Yu

Plant Physiol 2019 04;179(4):1435-1436

Donald Danforth Plant Science Center, Saint Louis, Missouri

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http://dx.doi.org/10.1104/pp.19.00176DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446791PMC

Of Storage and Stems: Examining the Role of Stem Water Storage in Plant Water Balance.

Authors:
Robert Skelton

Plant Physiol 2019 04;179(4):1433-1434

Department of Integrative Biology, University of California, Berkeley, California 94707

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http://dx.doi.org/10.1104/pp.19.00057DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446748PMC

The Immune Redoxome: Effector-Triggered Immunity Switches Cysteine Oxidation Profiles.

Authors:
Amna Mhamdi

Plant Physiol 2019 04;179(4):1196-1197

Ghent University, Department of Plant Biotechnology and Bioinformatics, and VIB Center for Plant Systems Biology, 9052 Ghent, Belgium

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.19.00207
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http://dx.doi.org/10.1104/pp.19.00207DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446770PMC
April 2019
9 Reads

Focus Issue Editorial: Biotic Stress.

Plant Physiol 2019 04;179(4):1193-1195

Department of Biochemistry, University of Nebraska-Lincoln, N146 Beadle Center, Lincoln, Nebraska 68588-0662.

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http://dx.doi.org/10.1104/pp.19.00330DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446788PMC

BRASSINOSTEROID-SIGNALING KINASE5 associates with immune receptors and is required for immune responses.

Plant Physiol 2019 Apr 2. Epub 2019 Apr 2.

Tel-Aviv University Dept. of Molecular Biology and Ecology of Plants, Ramat Aviv CITY: Tel-Aviv 69978 POSTAL_CODE: 69978 Israel [IL]

Plants utilize cell surface-localized pattern recognition receptors (PRRs) to detect pathogen- or damage-associated molecular patterns (PAMP/DAMPs) and initiate pattern-triggered immunity (PTI). Here, we investigated the role of Arabidopsis thaliana BRASSINOSTEROID-SIGNALING KINASE5 (BSK5), a member of the receptor-like cytoplasmic kinase subfamily XII, in PRR-initiated immunity. BSK5 localized to the plant cell periphery, interacted in yeast and in planta with multiple receptor-like kinases, including the ELONGATION FACTOR-TU (EF-Tu) RECEPTOR (EFR) and PEP1 RECEPTOR1 (PEPR1) PRRs, and it was phosphorylated in vitro by PEPR1 and EFR in the kinase activation loop. Read More

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http://dx.doi.org/10.1104/pp.18.01492DOI Listing
April 2019
2 Reads

Pinstatic acid promotes auxin transport by inhibiting PIN internalization.

Plant Physiol 2019 Apr 1. Epub 2019 Apr 1.

Okayama University of Science CITY: Okayama City POSTAL_CODE: 700-0005 Japan [JP]

Polar auxin transport plays a pivotal role in plant growth and development. PIN auxin efflux carriers regulate directional auxin movement by establishing local auxin maxima, minima, and gradients that drive multiple developmental processes and responses to environmental signals. Auxin has been proposed to modulate its own transport by regulating subcellular PIN trafficking via processes such as clathrin-mediated PIN endocytosis and constitutive recycling. Read More

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http://dx.doi.org/10.1104/pp.19.00201DOI Listing

Unusual roles of secretory SNARE SYP132 in plasma membrane H+-ATPase traffic and vegetative plant growth.

Plant Physiol 2019 Mar 29. Epub 2019 Mar 29.

Plant Science Group, Laboratory of Plant Physiology and Biophysics, Institute of Molecular, Cell and Systems Biology, University of Glasgow CITY: Glasgow G12 8QQ POSTAL_CODE: G12 8Qq Great Britain

The plasma membrane proton (H+)-ATPases of plants generate steep electrochemical gradients and activate osmotic solute uptake. H+-ATPase-mediated proton pumping orchestrates cellular homeostasis and is a prerequisite for plastic cell expansion and plant growth. All evidence suggests that the population of H+-ATPase proteins at the plasma membrane reflects a balance of their roles in exocytosis, endocytosis, and recycling. Read More

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http://dx.doi.org/10.1104/pp.19.00266DOI Listing
March 2019
1 Read

Ethylene response factor ERF11 activates BT4 transcription to regulate immunity to Pseudomonas syringae.

Plant Physiol 2019 Mar 29. Epub 2019 Mar 29.

Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology; Mycotoxin and Molecular Plant Pathology Laboratory of Hebei Agricultural University CITY: Baoding STATE: Hebei China [CN]

Pseudomonas syringae, a major hemibiotrophic bacterial pathogen, causes many devastating plant diseases. However, the transcriptional regulation of plant defense responses to P. syringae remains largely unknown. Read More

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http://dx.doi.org/10.1104/pp.18.01209DOI Listing

OsPINOID Regulates Stigma and Ovule Initiation through Maintenance of the Floral Meristem by Auxin Signaling.

Plant Physiol 2019 Mar 29. Epub 2019 Mar 29.

Yangzhou University Agricultural college, Yangzhou University CITY: Yangzhou STATE: Jiangsu POSTAL_CODE: 225001 China [CN]

Stigma and ovule initiation is essential for sexual reproduction in flowering plants. However, the mechanism underlying the initiation of stigma and ovule primordia remains elusive. We identified a stigma-less mutant of rice (Oryza sativa) and revealed it was caused by the mutation in the PINOID (OsPID) gene. Read More

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http://dx.doi.org/10.1104/pp.18.01385DOI Listing

Clade I TGA bZIP transcription factors mediate BLADE-ON-PETIOLE-dependent regulation of development.

Plant Physiol 2019 Mar 28. Epub 2019 Mar 28.

Carleton University CITY: Ottawa STATE: Ontario POSTAL_CODE: K1S5B6 Canada [CA]

Lateral organs formed by the shoot apical meristem (SAM) are separated from surrounding stem cells by regions of low growth called boundaries. Arabidopsis (Arabidopsis thaliana) BLADE-ON-PETIOLE1 (BOP1) and BOP2 represent a class of genes important for boundary patterning in land plants. Members of this family lack a DNA-binding domain and interact with TGACG-motif binding (TGA) basic leucine zipper (bZIP) transcription factors for recruitment to DNA. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00805
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http://dx.doi.org/10.1104/pp.18.00805DOI Listing
March 2019
2 Reads

Alternative oxidase capacity of mitochondria in microsporophylls may function in cycad thermogenesis.

Plant Physiol 2019 Mar 27. Epub 2019 Mar 27.

University of Miyazaki CITY: Miyazaki POSTAL_CODE: 8892192 Japan [JP].

Cone thermogenesis is a widespread phenomenon in cycads and may function to promote volatile emissions that affect pollinator behavior. Given their large population size and intense and durable heat-producing effects, cycads are important organisms for comprehensive studies of plant thermogenesis. However, knowledge of mitochondrial morphology and function in cone thermogenesis is limited. Read More

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http://dx.doi.org/10.1104/pp.19.00150DOI Listing

PINOID is required for formation of the stigma and style in rice.

Plant Physiol 2019 Mar 27. Epub 2019 Mar 27.

UCSD CITY: La Jolla STATE: California POSTAL_CODE: 92093-0116 United States Of America [US]

The stigma is the entry point for sexual reproduction in plants, but the mechanisms underlying stigma development are largely unknown. Here, we disrupted putative auxin biosynthetic and signaling genes to evaluate their roles in rice (Oryza sativa) development. Disruption of the rice PINOID (OsPID) gene completely eliminated the development of stigmas, and overexpression of OsPID led to over-proliferation of stigmas, suggesting that OsPID is a key determinant for stigma development. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01389
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http://dx.doi.org/10.1104/pp.18.01389DOI Listing
March 2019
3 Reads

De-etiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL 3 Phosphorylation Status.

Plant Physiol 2019 Mar 27. Epub 2019 Mar 27.

Univeristy of Glasgow CITY: Glasgow POSTAL_CODE: G12 8QQ Great Britain

Phototropin (phot) receptor kinases play important roles in promoting plant growth by controlling light-capturing processes, such as phototropism. Phototropism is mediated through the action of NON-PHOTOTROPIC HYPOCOTYL 3 (NPH3), which is dephosphorylated following phot activation. However, the functional significance of this early signaling event remains unclear. Read More

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http://dx.doi.org/10.1104/pp.19.00206DOI Listing

Mesophyll ABA restrains early growth and flowering but does not directly suppress photosynthesis.

Plant Physiol 2019 Mar 25. Epub 2019 Mar 25.

Hebrew University CITY: Rehovot POSTAL_CODE: 76100 Israel [IL]

Abscisic acid (ABA) levels increase significantly in plants under stress conditions and ABA is thought to serve as a key stress-response regulator. However, the direct effect of ABA on photosynthesis and the effect of mesophyll ABA on yield under both well-watered and drought conditions are still the subject of debate. Here, we examined this issue using transgenic Arabidopsis thaliana plants carrying a dominant ABA-signaling inhibitor under the control of a mesophyll-specific promoter (FBPase::abi1-1, abbreviated to fa). Read More

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http://dx.doi.org/10.1104/pp.18.01334DOI Listing

Genome-Editing Based Engineering of CESA3 Dual Cellulose-Inhibitor Resistant Plants.

Plant Physiol 2019 Mar 25. Epub 2019 Mar 25.

VIB - Ghent University CITY: Ghent POSTAL_CODE: 9000 Belgium [BE]

The rapid appearance of herbicide-resistant weeds combined with a lack of novel herbicides being brought to market reduces crop production, thereby threatening food security worldwide. Here, we report on the use of the previously identified cellulose biosynthesis-inhibiting chemical compound C17 as a potential herbicide. Toxicity tests showed that C17 efficiently inhibits the growth of various weeds and widely cultivated dicotyledonous crops, whereas only slight or no growth inhibition was observed for monocotyledonous crops. Read More

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http://dx.doi.org/10.1104/pp.18.01486DOI Listing
March 2019
1 Read

3D imaging of tapetal mitochondria suggests the importance of mitochondrial fission in pollen growth.

Plant Physiol 2019 Mar 21. Epub 2019 Mar 21.

Academia Sinica CITY: Nankang STATE: Taipei POSTAL_CODE: 115 Taiwan

Mitochondrial fission occurs frequently in plant cells, but its biological significance is poorly understood because mutants specifically impaired in mitochondrial fission do not show obvious defects in vegetative growth. Here, we revealed that the production of viable pollen was reduced in mutants lacking one of the three main proteins involved in mitochondrial fission in Arabidopsis (Arabidopsis thaliana), DYNAMIN-RELATED PROTEIN 3A/Arabidopsis DYNAMIN-LIKE PROTEIN 2A (DRP3A/ADL2a), DRP3B and ELONGATED MITOCHONDRIA 1 (ELM1). In drp3b and elm1, young microspores contained an abnormal number of nuclei, and mature pollen had aberrant accumulation of lipids in their coat and an irregular pollen outer wall. Read More

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http://dx.doi.org/10.1104/pp.19.00183DOI Listing
March 2019
6.841 Impact Factor

CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR 6: A key regulator of Na+ homeostasis during germination.

Plant Physiol 2019 Mar 20. Epub 2019 Mar 20.

Tel Aviv University CITY: Tel Aviv POSTAL_CODE: 69978 Israel [IL].

Salinity impairs seed germination and seedling establishment. We investigated the role of Arabidopsis (Arabidopsis thaliana) CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR 6 (CAMTA6) in salinity stress responses during early germination. Compared with wild type (WT), the camta6-4 and camta6-5 mutants were more tolerant to NaCl and abscisic acid (ABA), and accumulated less Na+. Read More

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http://dx.doi.org/10.1104/pp.19.00119DOI Listing
March 2019
6.841 Impact Factor

Mitochondrial pyruvate dehydrogenase contributes to auxin-regulated organ development.

Plant Physiol 2019 Mar 20. Epub 2019 Mar 20.

Fujian Agriculture and Forestry University CITY: Fuzhou STATE: Fujian POSTAL_CODE: 350002 China [CN]

Pyruvate dehydrogenase (PDH) is the first enzyme (E1) of the PDH complex (PDC). This multienzyme complex contains E1, E2 and E3 components and controls the entry of carbon into the mitochondrial tricarboxylic acid (TCA) cycle to enable cellular energy production. The E1 component of PDC is composed of an E1α catalytic subunit and an E1β regulatory subunit. Read More

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http://dx.doi.org/10.1104/pp.18.01460DOI Listing

The amino acid permease OsAAP5 regulates tiller number and grain yield in rice.

Plant Physiol 2019 Mar 19. Epub 2019 Mar 19.

Wuhan Institute of Bioengineering CITY: Wuhan STATE: Hubei China [CN]

As fundamental nutrients, amino acids are important for rice (Oryza sativa) growth and development. Here, we identified an amino acid permease, OsAAP5, that regulates tiller number and grain yield in rice. The OsAAP5 promoter sequence differed between indica and japonica rice varieties. Read More

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http://dx.doi.org/10.1104/pp.19.00034DOI Listing
March 2019
2 Reads

Glucose-regulated HLP1 acts as a key molecule in governing thermomemory.

Plant Physiol 2019 Mar 19. Epub 2019 Mar 19.

National Institute of Plant Genome Research CITY: New Delhi STATE: Delhi POSTAL_CODE: 110067 India [IN]

Induction of heat shock proteins (HSPs) in response to heat stress (HS) is indispensable for conferring thermotolerance. Glucose, a fundamental signaling and metabolic molecule, provides energy to stressed seedlings to combat stress. The recovery of stressed plants from detrimental HS in response to glucose is largely mediated by HSPs, but the mechanistic basis of this thermotolerance is not well defined. Read More

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http://dx.doi.org/10.1104/pp.18.01371DOI Listing

Inverse Correlation Between MPSR1 E3 Ubiquitin Ligase and HSP90.1 Balances Cytoplasmic Protein Quality Control.

Plant Physiol 2019 Mar 19. Epub 2019 Mar 19.

Yonsei University CITY: Seoul POSTAL_CODE: 03722 Korea (South), Republic Of

MISFOLDED PROTEIN SENSING RING 1 (MPSR1) is a chaperone-independent E3 ubiquitin ligase that participates in protein quality control by eliminating misfolded proteins in Arabidopsis (Arabidopsis thaliana). Here, we report that in the early stages of proteotoxic stress, cellular levels of MPSR1 increased immediately, while levels of HEAT SHOCK PROTEIN 90.1 (AtHSP90. Read More

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http://dx.doi.org/10.1104/pp.18.01582DOI Listing

Abscisic acid receptors and coreceptors modulate plant water use efficiency and water productivity.

Plant Physiol 2019 Mar 18. Epub 2019 Mar 18.

Technische Universitat Munchen CITY: Freising POSTAL_CODE: 85350 Germany [DE]

Improving the water use efficiency (WUE) of crop plants without trade-offs in growth and yield is considered a utopic goal. However, recent studies on model plants show that partial restriction of transpiration can occur without a reduction in CO2 uptake and photosynthesis. In this study, we analyzed the potentials and constraints of improving WUE in Arabidopsis thaliana and in wheat (Triticum aestivum L. Read More

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http://dx.doi.org/10.1104/pp.18.01238DOI Listing
March 2019
1 Read

A Cytosolic Bypass and G6P Shunt in Plants Lacking Peroxisomal Hydroxypyruvate Reductase.

Plant Physiol 2019 Mar 18. Epub 2019 Mar 18.

Michigan State University CITY: East Lansing STATE: Michigan POSTAL_CODE: 48824 United States Of America [US]

The oxygenation of ribulose 1,5-bisphosphate by rubisco is the first step in photorespiration and reduces the efficiency of photosynthesis in C3 plants. Our recent data indicate that mutants in photorespiration have increased rates of photosynthetic cyclic electron flow around photosystem I. We investigated mutant lines lacking peroxisomal hydroxypyruvate reductase to determine if there are connections between 2-PG accumulation and cyclic electron flow. Read More

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http://dx.doi.org/10.1104/pp.19.00256DOI Listing

A Transcription Factor, OsMADS57, Regulates Long-distance Nitrate Transport and Root Elongation.

Plant Physiol 2019 Mar 18. Epub 2019 Mar 18.

Nanjing Agricultural University CITY: Nanjing China [CN]

Root nitrate uptake adjusts to the plant's nitrogen demand for growth. Here we report that OsMADS57, a MADS-box transcription factor, modulates nitrate translocation from rice (Oryza sativa) roots to shoots under low-nitrate conditions. OsMADS57 is abundantly expressed in xylem parenchyma cells of root stele and is induced by nitrate. Read More

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http://dx.doi.org/10.1104/pp.19.00142DOI Listing

Tandem fluorescent protein timers for non-invasive relative protein lifetime measurement in plants.

Plant Physiol 2019 Mar 14. Epub 2019 Mar 14.

Heidelberg University CITY: Heidelberg POSTAL_CODE: 69120 Germany [DE].

Targeted protein degradation is an important and pervasive regulatory mechanism in plants, required for perception and response to the environment as well as developmental signalling. Despite the significance of this process, relatively few studies have assessed plant protein turnover in a quantitative fashion. Tandem fluorescent protein timers (tFTs) offer a powerful approach for the assessment of in vivo protein turnover in distinct subcellular compartments of single or multiple cells. Read More

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http://dx.doi.org/10.1104/pp.19.00051DOI Listing

ANAC017 coordinates organellar functions and stress responses by reprogramming retrograde signaling.

Plant Physiol 2019 Mar 14. Epub 2019 Mar 14.

La Trobe University CITY: Bundoora STATE: VIC POSTAL_CODE: 3083 Australia [AU]

Mitochondria adjust their activities in response to external and internal stimuli to optimize growth via the mitochondrial retrograde response (MRR) signaling pathway. The Arabidopsis (Arabidopsis thaliana) NAC domain transcription factor ANAC017 has previously been identified as a regulator of the MRR. We show here that overexpression of ANAC017 in Arabidopsis leads to growth retardation, altered leaf development with decreased cell size and viability, and early leaf senescence. Read More

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http://dx.doi.org/10.1104/pp.18.01603DOI Listing
March 2019
1 Read

An efficient system for Ds transposon tagging in Brachypodium distachyon.

Plant Physiol 2019 Mar 13. Epub 2019 Mar 13.

Shandong Agricultural University CITY: Taian STATE: Shandong POSTAL_CODE: 271018 China [CN]

Transposon tagging is a powerful tool that has been widely applied in several species for insertional mutagenesis in plants. Several efforts have aimed to create T-DNA insertional mutant populations in Brachypodium distachyon L., a monocot plant used as a model system to study temperate cereals, but there has been a lack of research aimed at using transposon strategies. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00875
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http://dx.doi.org/10.1104/pp.18.00875DOI Listing
March 2019
7 Reads
6.841 Impact Factor

An essential role for miRNA167 in maternal control of embryonic and seed development.

Plant Physiol 2019 Mar 13. Epub 2019 Mar 13.

UCSD CITY: La Jolla STATE: California POSTAL_CODE: 92093-0116 United States Of America [US]

Maternal cells play a critical role in ensuring the normal development of embryos, endosperms, and seeds. Mutations that disrupt the maternal control of embryogenesis and seed development are difficult to identify. Here, we completely deleted four MICRORNA167 (MIR167) genes in Arabidopsis thaliana using a clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) genome editing technology We found that plants with a deletion of MIR167A phenocopied plants overexpressing miRNA167-resistant versions of Auxin Response Factor 6 (ARF6) or ARF8, two miRNA167 targets. Read More

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http://dx.doi.org/10.1104/pp.19.00127DOI Listing
March 2019
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Comparative transcriptomic analysis provides insight into the domestication and improvement of pear (P. pyrifolia) fruit.

Plant Physiol 2019 Mar 13. Epub 2019 Mar 13.

Nanjing Agricultural University CITY: Nanjing STATE: Jiangsu POSTAL_CODE: 210095 China [CN]

Knowledge of the genetic changes that occurred during the domestication and improvement of perennial trees at the RNA level is limited. Here, we used RNA-seq analysis to compare representative sets of wild, landrace, and improved accessions of pear (Pyrus pyrifolia) to gain insight into the genetic changes associated with domestication and improvement. A close population relationship and similar nucleotide diversity was observed between the wild and landrace groups, whereas the improved group had substantially reduced nucleotide diversity. Read More

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http://dx.doi.org/10.1104/pp.18.01322DOI Listing
March 2019
6.841 Impact Factor

Genetic Engineering for Disease Resistance in Plants: Recent Progress and Future Perspectives.

Plant Physiol 2019 Mar 13. Epub 2019 Mar 13.

University of California CITY: Davis STATE: California POSTAL_CODE: 95616 United States Of America [US]

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http://dx.doi.org/10.1104/pp.18.01224DOI Listing

Highly resolved systems biology to dissect the etioplast-to-chloroplast transition in tobacco leaves.

Plant Physiol 2019 Mar 12. Epub 2019 Mar 12.

Max Planck Institute of Molecular Plant Physiology CITY: D-14476 Potsdam-Golm Germany [DE]

Upon exposure to light, plant cells quickly acquire photosynthetic competence by converting pale etioplasts into green chloroplasts. This developmental transition involves the de novo biogenesis of the thylakoid system, and requires reprogramming of metabolism and gene expression. Etioplast-to-chloroplast differentiation involves massive changes in plastid ultrastructure, but how these changes are connected to specific changes in physiology, metabolism and expression of the plastid and nuclear genomes is poorly understood. Read More

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http://dx.doi.org/10.1104/pp.18.01432DOI Listing
March 2019
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Genetics of variable disease expression conferred by inverse gene-for-gene interactions in the wheat-Parastagonospora nodorum pathosystem.

Plant Physiol 2019 Mar 11. Epub 2019 Mar 11.

USDA-ARS CITY: Fargo STATE: North Dakota POSTAL_CODE: 58102-2765 United States Of America [US]

The wheat-Parastagonospora nodorum pathosystem involves the recognition of pathogen-secreted necrotrophic effectors (NEs) by corresponding wheat NE sensitivity genes. This inverse gene-for-gene recognition leads to necrotrophic effector-triggered susceptibility (NETS) and ultimately septoria nodorum blotch (SNB) disease. Here, we used multiple pathogen isolates to individually evaluate the effects of the host gene-NE interactions Tsn1-SnToxA, Snn1-SnTox1, and Snn3-B1-SnTox3, alone and in various combinations, to determine the relative importance of these interactions in causing disease. Read More

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http://dx.doi.org/10.1104/pp.19.00149DOI Listing
March 2019
6.841 Impact Factor

Evolution of cold acclimation and its role in niche transition in the temperate grass subfamily Pooideae.

Plant Physiol 2019 Mar 8. Epub 2019 Mar 8.

Norwegian University of Life Sciences CITY: Aas Norway [NO]

The grass subfamily Pooideae dominates the grass floras in cold temperate regions, and has evolved complex physiological adaptations to cope with extreme environmental conditions like frost, winter and seasonality. One such adaptation is cold acclimation, wherein plants increase their frost tolerance in response to gradually falling temperatures and shorter days in the autumn. However, understanding how complex traits like cold acclimation evolve remains a major challenge in evolutionary biology. Read More

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http://dx.doi.org/10.1104/pp.18.01448DOI Listing

High-CO2/hypoxia-responsive transcription factors DkERF24 and DkWRKY1 interact and activate DkPDC2 promoter.

Plant Physiol 2019 Mar 8. Epub 2019 Mar 8.

Zhejiang University CITY: Hangzhou STATE: Zhejiang POSTAL_CODE: n/a China [CN]

Identification and functional characterization of hypoxia-responsive transcription factors is important for understanding plant responses to natural anaerobic environments and during storage and transport of fresh horticultural products. In this study, yeast one-hybrid (Y1H) library screening using the persimmon (Diospyros kaki) pyruvate decarboxylase (DkPDC2) promoter identified three Ethylene Response Factor genes (DkERF23/24/25) and four WRKY transcription factor genes (DkWRKY1/5/6/7) that were differentially expressed in response to high CO2 (95%, with 4% N2 and 1% O2) and high N2 (99% N2 and 1% O2). Y1H assays and electrophoretic mobility shift assays indicated that DkERF23/24/25 and DkWRKY6/7 could directly bind to the DkPDC2 promoter. Read More

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http://dx.doi.org/10.1104/pp.18.01552DOI Listing
March 2019
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