30,903 results match your criteria Plant physiology[Journal]


Vacuolar phosphate transporters contribute to systemic phosphate homeostasis vital for reproductive development in Arabidopsis.

Plant Physiol 2018 Dec 14. Epub 2018 Dec 14.

University of California CITY: Berkeley STATE: California POSTAL_CODE: 94720 United States Of America [US]

Vacuolar storage of phosphate (Pi) is essential for Pi homeostasis in plants. Recent studies have identified a family of vacuolar Pi transporters, VPTs (PHT5s), responsible for vacuolar sequestration of Pi. We report here that both VPT1 and VPT3 contribute to cytosol-to-vacuole Pi partitioning. Read More

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http://dx.doi.org/10.1104/pp.18.01424DOI Listing
December 2018

Genome-scale fluxome of Synechococcus elongatus UTEX 2973 using transient 13C-labeling data.

Plant Physiol 2018 Dec 14. Epub 2018 Dec 14.

The Pennsylvania State University CITY: University Park STATE: Pennsylvania POSTAL_CODE: n/a United States Of America [US]

Synechococcus elongatus UTEX 2973 (Synechococcus 2973) has the shortest reported doubling time (2.1 h) among cyanobacteria, making it a promising platform for the solar-based production of biochemicals. In this meta-analysis, its intracellular flux distribution was re-computed using genome-scale Isotopic Non-Stationary-13C-Metabolic Flux Analysis (INST-MFA) given the labeling dynamics of 13 metabolites reported in an earlier study. Read More

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http://dx.doi.org/10.1104/pp.18.01357DOI Listing
December 2018

A Golgi-released subpopulation of the trans-Golgi network mediates protein secretion in Arabidopsis.

Plant Physiol 2018 Dec 13. Epub 2018 Dec 13.

RIKEN CITY: Saitama POSTAL_CODE: 351-0198 Japan [JP].

Spatiotemporal coordination of protein trafficking between organelles is essential for eukaryotic cells, and the post-Golgi interface, including the trans-Golgi network (TGN), is a pivotal hub for multiple trafficking pathways. The Golgi-released independent TGN (GI-TGN) is a compartment described only in plant cells, and its cellular and physiological roles remain elusive. In Arabidopsis thaliana, the SYP4 group Qa-SNARE (soluble N-ethyl-maleimide sensitive factor attachment protein receptor) membrane fusion proteins are shared components of TGN and GI-TGN and regulate secretory and vacuolar transport. Read More

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http://dx.doi.org/10.1104/pp.18.01228DOI Listing
December 2018

RSL Class Ⅱ Transcription Factors Guide the Nuclear Localization of RHL1 to Regulate Root Hair Development.

Plant Physiol 2018 Dec 13. Epub 2018 Dec 13.

Kyung Hee University CITY: Yongin STATE: Gyeonggi-do POSTAL_CODE: 17104 Korea (South), Republic Of

Root hairs are important for absorption of nutrients and water from the rhizosphere. The ROOT HAIR DEFECTIVE-SIX LIKE (RSL) Class Ⅱ family of transcription factors is expressed preferentially in root hairs and has a conserved role in root hair development in land plants. We functionally characterized the seven members of the RSL Class II subfamily in the rice (Oryza sativa) genome. Read More

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http://dx.doi.org/10.1104/pp.18.01002DOI Listing
December 2018

Pivotal roles of cryptochromes 1a and 2 in tomato development and physiology.

Plant Physiol 2018 Dec 12. Epub 2018 Dec 12.

ENEA, Trisaia Research Center CITY: Rotondella (MT) STATE: Italy POSTAL_CODE: 75026 Italy [IT]

Cryptochromes are flavin-containing blue/UV-A light photoreceptors that regulate various plant light-induced physiological processes. In Arabidopsis thaliana (Brassicaceae), cryptochromes mediate de-etiolation, photoperiodic control of flowering, entrainment of the circadian clock, cotyledon opening and expansion, anthocyanin accumulation and root growth. In tomato (Solanum lycopersicum; Solanaceae), cryptochromes are encoded by a multi-gene family, comprising CRY1a, CRY1b, CRY2 and CRY3. Read More

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http://dx.doi.org/10.1104/pp.18.00793DOI Listing
December 2018
6.841 Impact Factor

Hydraulics regulates stomatal responses to changes in leaf water status in Athyrium filix-femina.

Plant Physiol 2018 Dec 11. Epub 2018 Dec 11.

Purdue University CITY: West Lafayette STATE: IN POSTAL_CODE: 47906 United States Of America [US]

Stomatal responses to changes in leaf water status are important for the diurnal regulation of gas exchange and the survival of plants during drought. These stomatal responses in angiosperm species are well characterized, yet an ongoing debate surrounds the role of metabolism, particularly the role of the hormone abscisic acid (ABA), in functionally regulating stomatal responses to changes in leaf water status in species of non-seed plants. Here we measured the stomatal response to changes in vapour pressure deficit (VPD) in two natural forms of the fern species Athyrium filix-femina, recently suggested to have stomata that are regulated by ABA. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01412
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http://dx.doi.org/10.1104/pp.18.01412DOI Listing
December 2018
2 Reads

Exchanges at the plant-oomycete interface that influence disease.

Plant Physiol 2018 Dec 11. Epub 2018 Dec 11.

University of Calfornia CITY: Riverside STATE: California United States Of America [US].

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http://dx.doi.org/10.1104/pp.18.00979DOI Listing
December 2018

The Low Molecular Mass Photosystem II Protein PsbTn is Important for Light Acclimation.

Plant Physiol 2018 Dec 11. Epub 2018 Dec 11.

Umeå University CITY: Umea POSTAL_CODE: 90187 Sweden [SE]

Photosystem II (PSII) is a supramolecular complex containing over 30 protein subunits and a large set of cofactors including various pigments and quinones as well as Mn, Ca, Cl, and Fe ions. Eukaryotic PSII complexes contain many subunits not found in their bacterial counterparts, including the proteins PsbP, PsbQ, PsbS, and PsbW, as well as the highly homologous, low molecular mass subunits PsbTn1 and PsbTn2 whose function is currently unknown. To determine the function of PsbTn1 and PsbTn2, we generated single and double psbTn1 and psbTn2 knock-out mutants in Arabidopsis thaliana. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01251
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http://dx.doi.org/10.1104/pp.18.01251DOI Listing
December 2018
1 Read

Terpene Biosynthesis in Red Algae is Catalyzed by Microbial Type but not Typical Plant Terpene Synthases.

Plant Physiol 2018 Dec 11. Epub 2018 Dec 11.

University of Tennessee CITY: Knoxville STATE: Tennessee POSTAL_CODE: 37996 United States Of America [US]

Red algae (Rhodophyta) and land plants belong to the monophyletic clade Archaeplastida and taxa of both groups are rich producers of terpene secondary metabolites. The terpene carbon skeletons of land plants are made by two types of terpene synthases: typical plant terpene synthases and microbial-type terpene synthases (MTPSLs); however, terpene biosynthesis in red algae is poorly understood. By systematic sequence analysis of seven genomes and 34 transcriptomes of red algae, MTPSL homologs were identified within one genome and two transcriptomes, whereas no homolog of typical plant terpene synthase genes was found. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01413
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http://dx.doi.org/10.1104/pp.18.01413DOI Listing
December 2018
2 Reads
6.841 Impact Factor

A host ER fusogen is recruited by Turnip mosaic virus for maturation of viral replication vesicles.

Plant Physiol 2018 Dec 11. Epub 2018 Dec 11.

McGill University CITY: Montreal POSTAL_CODE: H3A 1B1 Canada [CA]

Like other positive-strand RNA viruses, Turnip mosaic virus (TuMV) infection leads to the formation of viral vesicles at the endoplasmic reticulum (ER). Once released from the ER, the viral vesicles mature intracellularly and then move intercellularly. While it is known that the membrane-associated viral protein 6K2 plays a role in the process, the contribution of host proteins is poorly defined. Read More

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http://dx.doi.org/10.1104/pp.18.01342DOI Listing
December 2018

Highlighting the Fast Signals that Establish Remote Metabolite Profiles.

Plant Physiol 2018 Dec;178(4):1434-1435

Department of Plant Molecular Genetics, Centro Nacional de Biotechnología, Calle Darwin 3, 28049 Madrid, Spain.

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http://dx.doi.org/10.1104/pp.18.01327DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288748PMC
December 2018

Spot the Difference: Distinct Cargo-Specific Functionality of Two Closely Related SNAREs.

Plant Physiol 2018 Dec;178(4):1432-1433

King Abdullah University for Science and Technology, PO Box 4700, 23955-6900 Thuwal, Saudi Arabia

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http://dx.doi.org/10.1104/pp.18.01333DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288743PMC
December 2018

Alternative Splice Variant Sheds Light on Temperature Acclimation in Algae.

Authors:
Nathaniel Butler

Plant Physiol 2018 Dec;178(4):1430-1431

Department of Horticulture, University of Wisconsin-Madison, 1575 Linden Drive, Madison, Wisconsin 53706

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http://dx.doi.org/10.1104/pp.18.01340DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288746PMC
December 2018

Discovery of Mitochondrial Endonucleases.

Authors:
Masanori Izumi

Plant Physiol 2018 Dec;178(4):1428-1429

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

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http://dx.doi.org/10.1104/pp.18.01197DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288738PMC
December 2018

BpNAC012 positively regulates abiotic stress responses and secondary wall biosynthesis.

Plant Physiol 2018 Dec 10. Epub 2018 Dec 10.

Northeast Forestry University CITY: Harbin STATE: Heilongjiang China [CN]

NAC (NAM, ATAF1/2, and CUC2) transcription factors play important roles in plant biological processes and stress responses. Here, we characterized the functional roles of BpNAC012 in white birch (Betula platyphylla). We found that BpNAC012 serves as a transcriptional activator. Read More

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http://dx.doi.org/10.1104/pp.18.01167DOI Listing
December 2018

Plant NLRs with integrated domains: Unity makes strength.

Plant Physiol 2018 Dec 10. Epub 2018 Dec 10.

LIPM, Université de Toulouse, INRA, CNRS, Castanet-Tolosan, France CITY: Castanet-Tolosan France [FR]

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01134
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http://dx.doi.org/10.1104/pp.18.01134DOI Listing
December 2018
1 Read

Medicago LINC complexes function in nuclear morphology, nuclear movement, and root nodule symbiosis.

Plant Physiol 2018 Dec 10. Epub 2018 Dec 10.

Ohio State University Department of Plant Biology, 210 Rightmire Hall, 1060 Carmack Road CITY: Columbus STATE: Ohio POSTAL_CODE: 43210 United States Of America [US]

Nuclear movement is involved in cellular and developmental processes across eukaryotic life, often driven by Linker of Nucleoskeleton and Cytoskeleton (LINC) complexes, which bridge the nuclear envelope (NE) via the interaction of Klarsicht/ANC-1/Syne-1 Homology (KASH) and Sad1/UNC-84 (SUN) proteins. Arabidopsis (Arabidopsis thaliana) LINC complexes are involved in nuclear movement and positioning in several cell types. Observations since the 1950s have described targeted nuclear movement and positioning during symbiosis initiation between legumes and rhizobia, but it has never been established whether these movements are functional or incidental. Read More

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http://dx.doi.org/10.1104/pp.18.01111DOI Listing
December 2018

Nitric oxide remodels the photosynthetic apparatus upon S-starvation in Chlamydomonas reinhardtii.

Plant Physiol 2018 Dec 10. Epub 2018 Dec 10.

Institut de Biologie Physico-Chimique-Centre National de la Recherche Scientifique-Sorbonne Université CITY: Paris POSTAL_CODE: 75005 France [FR]

Many photosynthetic autotrophs have evolved responses that adjust their metabolism to limitations in nutrient availability. Here we report a detailed characterization of the remodeling of photosynthesis upon sulfur starvation under heterotrophy and photo-autotrophy in the green alga Chlamydomonas (Chlamydomonas reinhardtii). Photosynthetic inactivation under low light and darkness is achieved through specific degradation of RuBisCO and cytochrome b6f and occurs only in the presence of reduced carbon in the medium. Read More

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http://dx.doi.org/10.1104/pp.18.01164DOI Listing
December 2018

A methyltransferase trio essential for phosphatidylcholine biosynthesis and growth.

Plant Physiol 2018 Dec 5. Epub 2018 Dec 5.

Institute of Plant and Microbial Biology, Academia Sinica 128 sec2 Academia Rd, Nankang CITY: Taipei POSTAL_CODE: 11529 Taiwan

Phosphatidylcholine (PC) is a primary class of membrane lipids in most eukaryotes. In plants, the primary PC biosynthetic pathway and its role in plant growth and development remain elusive due to lack of a mutant model with substantially decreased PC content. Recently, a double mutant of Arabidopsis (Arabidopsis thaliana) PHOSPHO-BASE N-METHYLTRANSFERASE 1 (PMT1) and PMT3 was reported with reduced PC content and defective plant growth. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01408
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http://dx.doi.org/10.1104/pp.18.01408DOI Listing
December 2018
3 Reads

Arabidopsis CER1-LIKE1 functions in a cuticular very-long-chain alkane-forming complex.

Plant Physiol 2018 Dec 4. Epub 2018 Dec 4.

Université de Bordeaux CITY: Villenave D'Ornon France [FR]

Plant aerial organs are coated with cuticular waxes, a hydrophobic layer that primarily serves as a waterproofing barrier. Cuticular wax is a mixture of aliphatic very-long-chain molecules, ranging from 22 to 48 carbons, produced in the endoplasmic reticulum of epidermal cells. Among all wax components, alkanes represent up to 80% of total wax in Arabidopsis leaves. Read More

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http://dx.doi.org/10.1104/pp.18.01075DOI Listing
December 2018

ABI5-BINDING PROTEIN 2 Coordinates CONSTANS to Delay Flowering by Recruiting the Transcriptional Corepressor TPR2.

Plant Physiol 2018 Dec 4. Epub 2018 Dec 4.

Shanghai University CITY: Shanghai STATE: Shanghai POSTAL_CODE: 200444 China [CN]

ABI5-BINDING PROTEIN 2 (AFP2) negatively regulates the abscisic acid (ABA) signal by accelerating ABI5 degradation during seed germination in Arabidopsis thaliana. The ABA signal is reported to delay flowering by upregulating Flowering Locus C (FLC) expression, but the role of AFP2 in regulating flowering time is unknown. Here, we found that flowering time was markedly delayed and CONSTANS (CO) expression was reduced in a transgenic Arabidopsis line overexpressing AFP2 (AFP2-ox) under long-day conditions. Read More

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http://dx.doi.org/10.1104/pp.18.00865DOI Listing
December 2018

The Local Phosphate Deficiency Response Activates ER Stress-dependent Autophagy.

Plant Physiol 2018 Dec 3. Epub 2018 Dec 3.

Leibniz-Institute of Plant Biochemistry CITY: Halle (Saale) POSTAL_CODE: D-06120 Germany [DE]

Inorganic phosphate (Pi) is often a limiting plant nutrient. In members of the Brassicaceae family, such as Arabidopsis thaliana, Pi deprivation reshapes root system architecture to favor topsoil foraging by inhibiting primary root extension and stimulating lateral root formation. Root growth inhibition upon Pi deficiency is triggered by Fe-stimulated, apoplastic ROS generation and cell wall modifications, which impair cell-to-cell communication and meristem maintenance. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01379
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http://dx.doi.org/10.1104/pp.18.01379DOI Listing
December 2018
8 Reads

Proteome-wide analysis of cysteine reactivity during effector-triggered immunity.

Plant Physiol 2018 Dec 3. Epub 2018 Dec 3.

Mississippi State University CITY: Mississippi State, MS STATE: Mississippi POSTAL_CODE: 14853 United States Of America [US]

A surge in the accumulation of oxidants generates shifts in the cellular redox potential during early stages of plant infection with pathogens and activation of effector-triggered immunity (ETI). The redoxome, defined as the proteome-wide oxidative modifications of proteins caused by oxidants, has a well-known impact on stress responses in metazoans. However, the identity of proteins and the residues sensitive to oxidation during the plant immune response remain largely unknown. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01194
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http://dx.doi.org/10.1104/pp.18.01194DOI Listing
December 2018
1 Read

Cation specificity of vacuolar NHX-type cation/H+ antiporters.

Plant Physiol 2018 Nov 29. Epub 2018 Nov 29.

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

Cation/H+ (NHX-type) antiporters are important regulators of intracellular ion homeostasis and are critical for cell expansion and plant stress acclimation. In Arabidopsis (Arabidopsis thaliana), four distinct NHX isoforms, named AtNHX1 to AtNHX4, locate to the tonoplast. To determine the concerted role(s) of all tonoplast NHXs on vacuolar ion and pH homeostasis, we examined multiple knockout mutants lacking all but one of the four vacuolar isoforms and quadruple knockout plants lacking any vacuolar NHX activity. Read More

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http://dx.doi.org/10.1104/pp.18.01103DOI Listing
November 2018
11 Reads

CYP76B74 catalyzes the 3''-hydroxylation of geranylhydroquinone in shikonin biosynthesis.

Plant Physiol 2018 Nov 29. Epub 2018 Nov 29.

State Key Laboratory Breeding Base of Dao-di Herbs,National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences CITY: Beijing China [CN]

Shikonin and its derivatives are the most abundant naphthoquinone pigments formed in species of the medicinally and economically valuable Boraginaceae. A key step in the shikonin biosynthetic pathway, namely the C-3'' hydroxylation of prenylated phenolic intermediate geranylhydroquinone, is expected to be catalyzed by a cytochrome P450. To find cytochrome P450 candidates with transcription profiles similar to those of the known upstream genes, we carried out co-expression analysis of transcriptome datasets of shikonin-proficient and shikonin-deficient cell lines and spatial expression in different organs of Arnebia euchroma. Read More

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http://dx.doi.org/10.1104/pp.18.01056DOI Listing
November 2018
4 Reads
6.841 Impact Factor

Chlororespiration controls growth under intermittent light.

Plant Physiol 2018 Nov 29. Epub 2018 Nov 29.

Institut de Biologie Physico-Chimique-Centre National de la Recherche Scientifique-Sorbonne Université CITY: Paris POSTAL_CODE: 75005 France [FR]

Whereas photosynthetic function under steady-state light conditions has been well characterised, little is known about its changes that occur in response to light fluctuations. Chlororespiration, a simplified respiratory chain, is widespread across all photosynthetic lineages, but its role remains elusive. Here, we show that chlororespiration plays a crucial role in intermittent light conditions in the green alga Chlamydomonas reinhardtii. Read More

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http://dx.doi.org/10.1104/pp.18.01213DOI Listing
November 2018

Modulation of auxin signaling and development by polyadenylation machinery.

Plant Physiol 2018 Nov 28. Epub 2018 Nov 28.

Insititute of Botany, Chinese Academy of Sciences CITY: Beijing POSTAL_CODE: 100093 China [CN]

Polyadenylation influences gene expression by affecting mRNA stability, transport, and translatability. Here, we report that AtCstF77 (Cleavage stimulation Factor 77), a component of the pre-mRNA 3'-end polyadenylation machinery, affects polyadenylation site (PAS) selection in transcripts of some auxin signaling genes in Arabidopsis thaliana. Disruption of AtCstF77 reduced auxin sensitivity and decreased the expression of the auxin reporter DR5-GFP. Read More

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http://dx.doi.org/10.1104/pp.18.00782DOI Listing
November 2018

OXA2b is crucial for proper membrane insertion of COX2 during biogenesis of complex IV in plant mitochondria.

Plant Physiol 2018 Nov 28. Epub 2018 Nov 28.

LMU Munich CITY: Planegg-Martinsried STATE: Bayern POSTAL_CODE: 82152 Germany [DE]

The evolutionarily conserved YidC/Oxa1/Alb3 proteins are involved in the insertion of membrane proteins in all domains of life. In plant mitochondria, individual knockouts of OXA1a, OXA2a and OXA2b are embryo-lethal. In contrast to other members of the protein family, OXA2a and OXA2b contain a tetratricopeptide repeat (TPR) domain at the C-terminus. Read More

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http://dx.doi.org/10.1104/pp.18.01286DOI Listing
November 2018

The plastidic sugar transporter pSuT influences flowering and affects cold responses.

Plant Physiol 2018 Nov 27. Epub 2018 Nov 27.

University of Kaiserslautern Pflanzenphysiologie, Postfach 3049 CITY: Kaiserslautern POSTAL_CODE: D-67653 Germany [DE]

Sucrose is one of the most important types of sugars in plants serving inter alia as a long-distance transport molecule, a carbon and energy storage compound, an osmotically active solute, and fuel for many anabolic reactions. Sucrose biosynthesis and degradation pathways are well known; however, regulation of sucrose intracellular distribution is poorly understood. In particular, the cellular function of chloroplast sucrose reserves and the transporters involved in accumulating these substantial sucrose levels remain uncharacterized. Read More

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http://dx.doi.org/10.1104/pp.18.01036DOI Listing
November 2018

BZR1 mediates brassinosteroid-induced autophagy and nitrogen starvation tolerance in tomato.

Plant Physiol 2018 Nov 27. Epub 2018 Nov 27.

Zhejiang University CITY: Hangzhou STATE: Zhejiang China [CN]

Autophagy, an innate cellular destructive mechanism, plays crucial roles in plant development and responses to stress. Although autophagy can be stimulated or suppressed by multiple molecular processes, the role of phytohormone signaling in autophagy is unclear. Here, we demonstrate that the transcripts of autophagy-related genes (ATGs) and the formation of autophagosomes are triggered by enhanced levels of brassinosteroid (BR). Read More

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http://dx.doi.org/10.1104/pp.18.01028DOI Listing
November 2018

PGR5-Dependent Cyclic Electron Flow Protects Photosystem I under Fluctuating Light at Donor and Acceptor Sides.

Plant Physiol 2018 Nov 21. Epub 2018 Nov 21.

Kyoto University CITY: Kyoto POSTAL_CODE: 606-8502 Japan [JP]

In response to a sudden increase in light intensity, plants must cope with absorbed excess photon energy to protect photosystems from photodamage. Under fluctuating light, photosystem I (PSI) is severely photodamaged in the Arabidopsis (Arabidopsis thaliana) proton gradient regulation5 (pgr5) mutant defective in the main pathway of PSI cyclic electron transport (CET). Here, we aimed to determine how photosystem I is protected by two proposed regulatory roles of CET via trans-thylakoid ΔpH formation: (1) reservation of electron sink capacity by adjusting the ATP/NADPH production ratio (acceptor-side regulation), and (2) downregulation of the cytochrome b6f (Cyt b6f) complex activity called photosynthetic control for slowing down the electron flow toward PSI (donor-side regulation). Read More

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http://dx.doi.org/10.1104/pp.18.01343DOI Listing
November 2018
7 Reads

A synthetic oxygen sensor for plants based on animal hypoxia signalling.

Plant Physiol 2018 Nov 20. Epub 2018 Nov 20.

Scuola Superiore Sant'Anna CITY: Pisa POSTAL_CODE: 56124 Italy [IT]

Due to the involvement of oxygen in many essential metabolic reactions, all living organisms have developed molecular systems that allow adaptive physiological and metabolic transitions depending on oxygen availability. In mammals, the expression of hypoxia-response genes is controlled by the heterodimeric Hypoxia-Inducible Factor (HIF). The activity of this transcriptional regulator is mainly linked to the oxygen-dependent hydroxylation of conserved proline residues in its α subunit, carried out by Prolyl-Hydroxylases (PHDs), and subsequent ubiquitination via the E3 ligase von Hippel-Lindau tumor suppressor (pVHL), which targets HIF-α to the proteasome. Read More

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http://dx.doi.org/10.1104/pp.18.01003DOI Listing
November 2018
5 Reads

The Largest Subunit of DNA Polymerase Delta is Required for Normal Formation of Meiotic Type I Crossovers.

Plant Physiol 2018 Nov 20. Epub 2018 Nov 20.

Fudan University CITY: Shanghai POSTAL_CODE: 200438 China [CN]

Meiotic recombination contributes to the maintenance of association between homologous chromosomes (homologs) and ensures the accurate segregation of homologs during anaphase I, thus facilitating the redistribution of alleles among progeny. As in the experimentally supported double strand break repair (DSBR) model, meiotic recombination is initiated by the programmed formation of DNA double strand breaks (DSBs). DSB repair requires DNA synthesis, but the role of DNA synthesis proteins during meiosis is largely unknown. Read More

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http://dx.doi.org/10.1104/pp.18.00861DOI Listing
November 2018
6.840 Impact Factor

Auxin and pattern formation of the Asteraceae flower head (capitulum).

Plant Physiol 2018 Nov 20. Epub 2018 Nov 20.

University of Manchester CITY: Manchester POSTAL_CODE: M13 9PT United Kingdom [GB]

Nature often creates complex structures by rearranging pre-existing units. One such example is the flower head (capitulum) in daisies, where a group of flowers (florets) and phyllaries (modified bracts) are arranged to superficially mimic a single flower. The capitulum is a key taxonomical innovation that defines the daisy family (Asteraceae), the largest flowering plant group. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01119
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http://dx.doi.org/10.1104/pp.18.01119DOI Listing
November 2018
1 Read

Characterisation of CRISPR mutants targeting genes modulating pectin degradation in ripening tomato.

Plant Physiol 2018 Nov 20. Epub 2018 Nov 20.

University of Nottingham Sutton Bonington Campus CITY: Loughborough POSTAL_CODE: Leics LE12 5RD United Kingdom [GB]

Tomato (Solanum lycopersicum) is a globally important crop with an economic value in the tens of billions of dollars, and a significant supplier of essential vitamins, minerals and phytochemicals in the human diet. Shelf life is a key quality trait related to alterations in cuticle properties and remodelling of the fruit cell walls. Studies with transgenic tomato plants undertaken over the last 20 years have indicated that a range of pectin degrading enzymes are involved in cell wall remodelling. Read More

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http://dx.doi.org/10.1104/pp.18.01187DOI Listing
November 2018
3 Reads

Engineering of metabolic pathways using synthetic enzyme complexes.

Plant Physiol 2018 Nov 19. Epub 2018 Nov 19.

University of Exeter CITY: Exeter EX4 4QD POSTAL_CODE: . United Kingdom [GB]

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http://dx.doi.org/10.1104/pp.18.01280DOI Listing
November 2018

Adaption of roots to nitrogen deficiency revealed by 3-D quantification and proteomic analysis.

Plant Physiol 2018 Nov 19. Epub 2018 Nov 19.

Fujian Agricultural and Forestry University CITY: Fuzhou STATE: Fujian POSTAL_CODE: 300052 China [CN].

Rapeseed (Brassica napus L.) is an important oil crop worldwide. However, severe inhibition of rapeseed production often occurs in the field due to nitrogen (N) deficiency. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00716
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http://dx.doi.org/10.1104/pp.18.00716DOI Listing
November 2018
3 Reads

Archetypal roles of an abscisic acid receptor in drought and sugar responses in liverworts.

Plant Physiol 2018 Nov 15. Epub 2018 Nov 15.

Saitama University CITY: Saitama POSTAL_CODE: 338-8570 Japan [JP]

Abscisic acid (ABA) controls seed dormancy and stomatal closure through binding to the intracellular receptor Pyrabactin resistance1 (Pyr1)/Pyr1-like/Regulatory components of ABA receptors (PYR/PYL/RCAR) in angiosperms. Genes encoding PYR/PYL/RCAR are thought to have arisen in the ancestor of embryophytes, but the roles of the genes in non-vascular plants have not been determined. In the liverwort Marchantia polymorpha, ABA reduces growth and enhances desiccation tolerance through increasing accumulation of intracellular sugars and various transcripts such as those of Late Embryogenesis Abundant (LEA)-like genes. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00761
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http://dx.doi.org/10.1104/pp.18.00761DOI Listing
November 2018
7 Reads

CORRECTION: Vol. 177: 1303-1318, 2018.

Authors:

Plant Physiol 2018 Nov;178(3):1424-1425

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http://dx.doi.org/10.1104/pp.18.01200DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236602PMC
November 2018

CORRECTION: Vol. 160: 379-395, 2012.

Authors:

Plant Physiol 2018 Nov;178(3):1423

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http://dx.doi.org/10.1104/pp.18.01168DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236599PMC
November 2018

Autophagy and Chloroplast Quality Control: Fatty Acid Synthesis Counts.

Authors:
Chunhua Zhang

Plant Physiol 2018 Nov;178(3):958-959

Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47906

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http://dx.doi.org/10.1104/pp.18.01230DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236621PMC
November 2018

Setting and Diffusing the Cyanide Bomb in Plant Defense.

Authors:
Trevor H Yeats

Plant Physiol 2018 Nov;178(3):956-957

Section of Plant Breeding and Genetics, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853

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http://dx.doi.org/10.1104/pp.18.01214DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236620PMC
November 2018

What Is the Minimal Optimal Sample Size for Plant Ecophysiological Studies?

Plant Physiol 2018 Nov;178(3):953-955

Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain

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http://dx.doi.org/10.1104/pp.18.01001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6236627PMC
November 2018

Genetic dissection of Fe-dependent signaling in root developmental responses to phosphate deficiency.

Plant Physiol 2018 Nov 12. Epub 2018 Nov 12.

Tsinghua University CITY: Beijing POSTAL_CODE: 100084 China [CN]

The inhibition of primary root (PR) growth is a major developmental response of Arabidopsis (Arabidopsis thaliana) to phosphate (Pi) deficiency. Previous studies have independently uncovered key roles of the LOW PHOSPHATE RESPONSE 1 (LPR1) ferroxidase, the tonoplast-localized ALUMINIUM SENSITIVE 3 (ALS3)/ SENSITIVE TO ALUMINUM RHIZOTOXICITY 1 (STAR1) transporter complex, and the SENSITIVE TO PROTON RHIZOTOXICITY 1 (STOP1, a transcription factor)- ALUMINUM-ACTIVATED MALATE TRANSPORTER 1 (ALMT1, a malate transporter) regulatory module in mediating this response by controlling iron (Fe) homeostasis in roots, but how these three components interact to regulate PR growth under Pi deficiency remains unknown. Here, we dissected genetic relationships among these three key components and found that: 1) STOP1, ALMT1, and LPR1 act downstream of ALS3/STAR1 in controlling PR growth under Pi deficiency; 2) ALS3/STAR1 inhibits the STOP1-ALMT1 pathway by repressing STOP1 protein accumulation in the nucleus; 3) STOP1-ALMT1 and LPR1 control PR growth under Pi deficiency in an interdependent manner involving the promotion of malate-dependent Fe accumulation in roots. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00907
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http://dx.doi.org/10.1104/pp.18.00907DOI Listing
November 2018
7 Reads
6.841 Impact Factor

Auxin function in the brown alga Dictyota dichotoma.

Plant Physiol 2018 Nov 12. Epub 2018 Nov 12.

Ghent University CITY: Ghent Belgium [BE].

Auxin controls body plan patterning in land plants and has been proposed to play a similar role in the development of brown algae (Phaeophyta) despite their distant evolutionary relationship with land plants. The mechanism of auxin action in brown algae remains controversial because of contradicting conclusions derived from pharmacological studies on Fucus. In this study, we used Dictyota dichotoma as a model system to show that auxin plays a role during the apical-basal patterning of the embryo of brown algae. Read More

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http://dx.doi.org/10.1104/pp.18.01041DOI Listing
November 2018

EPFL signals in the boundary region of the SAM restrict its size and promote leaf initiation.

Plant Physiol 2018 Nov 8. Epub 2018 Nov 8.

The University of Tennessee CITY: Knoxville STATE: Tennessee POSTAL_CODE: 37996--0800 United States Of America [US]

The shoot apical meristem (SAM) enables the formation of new organs throughout the life of a plant. ERECTA family (ERf) receptors restrict SAM size and promote initiation of leaves while simultaneously supporting establishment of correct phyllotaxy. In the epidermis and during organ elongation ERf activity is regulated by a family of Epidermal Patterning Factor-Like (EPFL) secreted cysteine-rich small proteins. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00714
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http://dx.doi.org/10.1104/pp.18.00714DOI Listing
November 2018
11 Reads

PUMPKIN, the sole Plastid UMP Kinase, Associates with Group II Introns and Alters Their Metabolism.

Plant Physiol 2018 Nov 8. Epub 2018 Nov 8.

Biozentrum der LMU München CITY: Planegg-Martinsried POSTAL_CODE: 82152 Germany [DE]

The chloroplast hosts photosynthesis and a variety of metabolic pathways that are essential for plant viability and acclimation processes. In this study, we show that PUMPKIN, the sole plastid UMP kinase in Arabidopsis (Arabidopsis thaliana), associates specifically with the introns of the plastid transcripts trnG-UCC, trnV-UAC, petB, petD, and ndhA in vivo, as revealed by RNA immunoprecipitation coupled with deep sequencing (RIP-Seq), and can bind RNA efficiently in vitro. Analyses of the target transcripts showed that PUMPKIN affects their metabolism. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00687
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http://dx.doi.org/10.1104/pp.18.00687DOI Listing
November 2018
3 Reads

ANGUSTIFOLIA Regulates Actin Filament Alignment for Nuclear Positioning in Leaves.

Plant Physiol 2018 Nov 7. Epub 2018 Nov 7.

Konan University CITY: Kobe POSTAL_CODE: 606-8502 Japan [JP]

During dark adaptation, plant nuclei move centripetally toward the mid-plane of the leaf blade; thus the nuclei in both the adaxial and abaxial sides become positioned at the inner periclinal walls of cells. This centripetal nuclear positioning implies that a characteristic cell polarity exists within a leaf, but little is known about the mechanism underlying this process. Here we show that ANGUSTIFOLIA (AN) and ACTIN7 regulate centripetal nuclear positioning in Arabidopsis (Arabidopsis thaliana) leaves. Read More

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http://dx.doi.org/10.1104/pp.18.01150DOI Listing
November 2018

Initial bud outgrowth occurs independent of auxin flow out of buds.

Plant Physiol 2018 Nov 7. Epub 2018 Nov 7.

The University of Queensland CITY: Brisbane STATE: QL POSTAL_CODE: 4072 Australia [AU]

Apical dominance is the process whereby the shoot tip inhibits the growth of axillary buds along the stem. It has been proposed that the shoot tip, which is the predominant source of the plant hormone auxin, prevents bud outgrowth by suppressing auxin canalization and export from axillary buds into the main stem. In this theory, auxin flow out of axillary buds is a prerequisite for bud outgrowth and buds are triggered to grow by an enhanced proportional flow of auxin from the buds. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.00519
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http://dx.doi.org/10.1104/pp.18.00519DOI Listing
November 2018
4 Reads