59,716 results match your criteria sensitive plant

Integrative analysis of the cuticular lipidome and transcriptome of Sorghum bicolor reveals cultivar differences in drought tolerance.

Plant Physiol Biochem 2021 Apr 19;163:285-295. Epub 2021 Apr 19.

College of Animal Science and Technology, Southwest University, Chongqing, 400716, China. Electronic address:

Cuticular wax and cutin are directly involved in the mechanisms by which plants acclimate to water-limited environments. However, how the two lipid forms balance their contributions to plant drought-tolerance is still not clear. The present study examined the responses of cutin monomers and cuticular waxes to drought stress in two sorghum (Sorghum bicolor (L. Read More

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Histone acetylation of 45S rDNA correlates with disrupted nucleolar organization during heat stress response in Zea mays L.

Physiol Plant 2021 Apr 22. Epub 2021 Apr 22.

State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China.

The role of the nucleolus in plant response to heat stress remains largely obscure. Our current efforts focused on exploring the underlying mechanism by which nucleolar disorganization is regulated in heat stressed-maize lines. Here, two maize lines, a heat-sensitive line, ZD958 and a heat-tolerant line, ZDH, were submitted to heat stress for investigating their association with the nucleolar disruption. Read More

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Silicon modulates nitro-oxidative homeostasis along with the antioxidant metabolism to promote drought stress tolerance in lentil plants.

Physiol Plant 2021 Apr 22. Epub 2021 Apr 22.

School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Australia.

Lentil is the fifth most important grain legume growing in arid/semi-arid regions of the world. Drought is one of the major constraints leading up to 50 % of production losses just in lentil. Application of silicon (Si) has been shown to be a promising solution to improve drought tolerance; however, the biochemical mechanisms and interactions involved are not fully understood, especially in legumes. Read More

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The canonical α-SNAP is essential for gametophytic development in Arabidopsis.

PLoS Genet 2021 Apr 22;17(4):e1009505. Epub 2021 Apr 22.

State Key laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China.

The development of male and female gametophytes is a pre-requisite for successful reproduction of angiosperms. Factors mediating vesicular trafficking are among the key regulators controlling gametophytic development. Fusion between vesicles and target membranes requires the assembly of a fusogenic soluble N-ethylmaleimide sensitive factor attachment protein receptors (SNAREs) complex, whose disassembly in turn ensures the recycle of individual SNARE components. Read More

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Brassinosteroids Act as a Positive Regulator of Photoprotection in Response to Chilling Stress.

Plant Physiol 2019 Jul;180(4):2061-2076

Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou 310058, People's Republic of China.

Photoprotection is an important strategy adopted by plants to avoid photoinhibition under stress conditions. However, the way in which photoprotection is regulated is not fully understood. Here, we demonstrate that tomato (Solanum lycopersicum) mutants of brassinosteroid (BR) biosynthesis (dwf) and related signaling through BRASSINAZOLE-RESISTANT1 (bzr1) are more sensitive to (PSII and PSI photoinhibition, with decreased cyclic electron flow around PSI and lower nonphotochemical quenching, accumulation of PSII subunit S (PsbS), violaxanthin deepoxidase (VDE) activity, and D1 protein abundance. Read More

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Generic Repeat Finder: A High-Sensitivity Tool for Genome-Wide De Novo Repeat Detection.

Plant Physiol 2019 Jul;180(4):1803-1815

Department of Biology, Miami University, Oxford, Ohio 45056.

Comprehensive and accurate annotation of the repeatome, including transposons, is critical for deepening our understanding of repeat origins, biogenesis, regulatory mechanisms, and roles. Here, we developed Generic Repeat Finder (GRF), a tool for genome-wide repeat detection based on fast, exhaustive numerical calculation algorithms integrated with optimized dynamic programming strategies. GRF sensitively identifies terminal inverted repeats (TIRs), terminal direct repeats (TDRs), and interspersed repeats that bear both inverted and direct repeats. Read More

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Role of Polysaccharides in Diatom Thalassiosira pseudonana and its Associated Bacteria in Hydrocarbon Presence.

Plant Physiol 2019 Jul;180(4):1898-1911

Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas 77553.

Diatoms secrete a significant amount of polysaccharides, which can serve as a critical organic carbon source for bacteria. The 2010 Deepwater Horizon oil spill exposed the Gulf of Mexico to substantial amounts of oil that also impacted the phytoplankton community. Increased production of exopolymeric substances was observed after this oil spill. Read More

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AtERO1 and AtERO2 Exhibit Differences in Catalyzing Oxidative Protein Folding in the Endoplasmic Reticulum.

Plant Physiol 2019 Jul;180(4):2022-2033

State Key Laboratory of Plant Genomics, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, China.

Disulfide bonds are essential for the folding of the eukaryotic secretory and membrane proteins in the endoplasmic reticulum (ER), and ER oxidoreductin-1 (Ero1) and its homologs are the major disulfide donors that supply oxidizing equivalents in the ER. Although Ero1 homologs in yeast (Saccharomyces cerevisiae) and mammals have been extensively studied, the mechanisms of plant Ero1 functions are far less understood. Here, we found that both Arabidopsis (Arabidopsis thaliana) ERO1 and its homolog AtERO2 are required for oxidative protein folding in the ER. Read More

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NF-YB2 and NF-YB3 Have Functionally Diverged and Differentially Induce Drought and Heat Stress-Specific Genes.

Plant Physiol 2019 Jun;180(3):1677-1690

Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan.

Functional diversification of transcription factors allows the precise regulation of transcriptomic changes under different environmental conditions. The NUCLEAR FACTOR Y (NF-Y) transcription factor comprises three subunits, NF-YA, NF-YB, and NF-YC, and is broadly diversified in plant species, whereas Humans (Homo sapiens) have one protein for each subunit. However, there remains much to be learned about the diversified functions of each subunit in plants. Read More

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Gibberellins Act Downstream of Arabis PERPETUAL FLOWERING1 to Accelerate Floral Induction during Vernalization.

Plant Physiol 2019 Jun;180(3):1549-1563

Max Planck Institute for Plant Breeding Research, D50829 Cologne, Germany.

Regulation of flowering by endogenous and environmental signals ensures that reproduction occurs under optimal conditions to maximize reproductive success. Involvement of the growth regulator gibberellin (GA) in the control of flowering by environmental cues varies among species. Arabis alpina Pajares, a model perennial member of the Brassicaceae, only undergoes floral induction during vernalization, allowing definition of the role of GA specifically in this process. Read More

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Cold-Adapted Protein Kinases and Thylakoid Remodeling Impact Energy Distribution in an Antarctic Psychrophile.

Plant Physiol 2019 Jun;180(3):1291-1309

Biology Department and the Biotron Centre for Experimental Climate Change Research, University of Western Ontario, London, Canada N6A 5B7.

The Antarctic psychrophile Chlamydomonas sp. UWO241 evolved in a permanently ice-covered lake whose aquatic environment is characterized not only by constant low temperature and high salt but also by low light during the austral summer coupled with 6 months of complete darkness during the austral winter. Since the UWO241 genome indicated the presence of Stt7 and Stl1 protein kinases, we examined protein phosphorylation and the state transition phenomenon in this psychrophile. Read More

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Assessing alfalfa (Medicago sativa L.) tolerance to salinity at seedling stage and screening of the salinity tolerance traits.

Plant Biol (Stuttg) 2021 Apr 21. Epub 2021 Apr 21.

Shandong Institute of Agricultural Sustainable Development, Jinan, Shandong, 250100, P.R. China.

Salt is among the most harmful agents that negatively influence crop yield. Developing salt tolerant plants is a promising way to utilize salinized lands. Alfalfa is an important perennial forage crop that exhibits wide cultivar variations in salt tolerance. Read More

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Pyrrolizidine alkaloids cause cell cycle and DNA damage repair defects as analyzed by transcriptomics in cytochrome P450 3A4-overexpressing HepG2 clone 9 cells.

Cell Biol Toxicol 2021 Apr 21. Epub 2021 Apr 21.

Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Science, Johannes Gutenberg University, Mainz, Germany.

Pyrrolizidine alkaloids (PAs) are a large group of highly toxic chemical compounds, which are found as cross-contaminants in numerous food products (e.g., honey), dietary supplements, herbal teas, and pharmaceutical herbal medicines. Read More

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Residue analytical method for the determination of trifluoroacetic acid and difluoroacetic acid in plant matrices by capillary electrophoresis tandem mass spectrometry (CE-MS/MS).

J Chromatogr A 2021 Mar 22;1646:462096. Epub 2021 Mar 22.

Sciex, Darmstadt, Germany; Horváth Csaba Memorial Laboratory, University of Pannonia, Veszprém, Hungary. Electronic address:

In the past years, the technology for trace residue analysis of plant protection compounds in plant and animal matrices, soil, and water has gradually changed to meet changing regulatory demands. Generally, from the '70s to the '90s of the last century, the active compounds and only a few major metabolites had to be determined in a typical "residue definition". Step by step and within the framework of product safety assessments of the enforcement of residues in dietary matrices and in the environment, further metabolites have come into the authorities focus. Read More

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Conditional destabilization of the TPLATE complex impairs endocytic internalization.

Proc Natl Acad Sci U S A 2021 Apr;118(15)

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

In plants, endocytosis is essential for many developmental and physiological processes, including regulation of growth and development, hormone perception, nutrient uptake, and defense against pathogens. Our toolbox to modulate this process is, however, rather limited. Here, we report a conditional tool to impair endocytosis. Read More

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Molecular mechanisms underlying glyphosate resistance in bacteria.

Environ Microbiol 2021 Apr 19. Epub 2021 Apr 19.

FG Synthetic Microbiology, Institute for Biotechnology, BTU Cottbus-Senftenberg, 01968, Senftenberg, Germany.

Glyphosate is a nonselective herbicide that kills weeds and other plants competing with crops. Glyphosate specifically inhibits the 5-enolpyruvyl-shikimate-3-phosphate (EPSP) synthase, thereby depleting the cell of EPSP serving as a precursor for biosynthesis of aromatic amino acids. Glyphosate is considered to be toxicologically safe for animals and humans. Read More

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Salt-induced recruitment of specific root-associated bacterial consortium capable of enhancing plant adaptability to salt stress.

ISME J 2021 Apr 19. Epub 2021 Apr 19.

Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, P. R. China.

Salinity is a major abiotic stress threatening crop production. Root-derived bacteria (RDB) are hypothesized to play a role in enhancing plant adaptability to various stresses. However, it is still unclear whether and how plants build up specific RDB when challenged by salinity. Read More

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Antifreeze protein from Ammopiptanthus nanus functions in temperature-stress through domain A.

Sci Rep 2021 Apr 19;11(1):8458. Epub 2021 Apr 19.

Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture; Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China.

Temperature stress restricts plant growth and development. Antifreeze protein (AFP) can improve plants antifreeze ability. In our previous study, the AnAFP gene cloned from Ammopiptanthus nanus was confirmed to be an excellent candidate enhancing plant cold resistance. Read More

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Plant-associated CO mediates long-distance host location and foraging behaviour of a root herbivore.

Elife 2021 Apr 20;10. Epub 2021 Apr 20.

Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland.

Insect herbivores use different cues to locate host plants. The importance of CO in this context is not well understood. We manipulated CO perception in western corn rootworm (WCR) larvae through RNAi and studied how CO perception impacts their interaction with their host plant. Read More

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Carbohydrates and water status in wheat plants under water stress.

New Phytol 1993 Nov;125(3):609-614

Department of Animal and Plant Sciences, University of Sheffield, P. O. Box 601, Sheffield S10 2UQ, UK.

Changes in sugar content during water stress and recovery were examined in leaves of two varieties of durum wheat (Triticutn durum). The drought-resistant Mohamed Ben Bachir (MBB) from Algeria and the drought-sensitive European variety Capdur differed in the time and type of sugar increase during water stress. Glucose accumulated at a rate closely corresponding with decreasing water potential but more rapidly and to a higher concentration in MBB than in Capdur. Read More

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November 1993

Growth and stomatal responses of birch (Betula pendula Roth.) clones to ozone in open-air and chamber fumigations.

New Phytol 1993 Nov;125(3):615-623

Ecological Laboratory, Department of Environmental Sciences, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland.

It is evident that even outside the classical high ozone areas some plant species are at risk. In this study seedlings of five birch clones (Betula pendula Roth.) were exposed to a slightly elevated ozone level in an open-field experiment over two growing seasons. Read More

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November 1993

Effect of nitrogen supply on frost hardiness in Calluna vulgaris (L.) Hull.

New Phytol 1994 Nov;128(3):461-468

School of Biological Sciences, University of Manchester, Williamson Building, Oxford Road, Manchester M13 9PL, UK.

Frost hardiness in Calluna vulgaris (L.) Hull, which had received ammonium nitrate applications in the field for 30 months, was assessed using scores of visible injury and measurements of the rate of total electrolyte leakage from excised shoots following controlled freezing treatments in the laboratory. There was good overall correlation between the two methods (Spearman correlation coefficient 0. Read More

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November 1994

Effects of exposure to ozone at different stages in the development of Plantago major L. on chlorophyll fluorescence and gas exchange.

New Phytol 1994 Nov;128(3):509-514

Department of Agricultural and Environmental Sciences, Ridley Building, University of Newcastle upon Tyne, NE1 7RU, UK.

Similar ozone treatments were applied at different stages of growth to a population of Plantago major L., which is as sensitive to ozone as Bel-W3 tobacco. Plants were grown from seed for 8 wk in controlled-environment chambers and exposed to 70 μl O l 7 h d for the whole period or for 2-wk episodes during weeks 1 + 2, 3 + 4, 5 + 6 or 7 + 8. Read More

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November 1994

Clover as an indicator plant for phytotoxic ozone concentrations: visible injury in relation to species, leaf age and exposure dynamics.

New Phytol 1995 Feb;129(2):355-365

Swedish Environmental Research Institute (IVL), Box 47086, S-402 58 Göteborg, Sweden.

Visible ozone injury on leaves of three clover species was investigated in relation to species, leaf age and exposure dynamics. It was shown that ozone episodes in south-west Sweden cause visible injury to subterranean clover (Trifolium subterraneum L.), white clover (Trifolium repens L. Read More

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February 1995

Stimulation by auxin and sucrose of bulbil formation in vitro by single leaf cultures of Narcissus.

New Phytol 1994 Jun;127(2):315-320

Department of Applied Plant Science, The Queen's University of Belfast, Newforge Lane. Belfast, BT9 5PX, UK.

Bulbil formation in vitro by single leaf explains from shoot clump cultures was investigated for Narcissus cultivars St Keverne and Havera. Single leaf explants (30-50 mm leaf with attached basal plate tissue) formed bulbils very infrequently unless cultured on media containing both auxin and a high concentration of sucrose whereas auxin was not necessary for bulbil formation by shoot dump cultures. As well as showing much stronger stimulation by auxin, bulbil initiation and development were more strongly inhibited In BA in single leaf cultures than in shoot dump cultures. Read More

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Physiological responses of Atherosperma moschatum to day length, night length and photosynthetic photon fluence rate.

T Olesen

New Phytol 1995 Aug;130(4):575-584

Department of Plant Science, University of Tasmania, G.P.O. Box 252C, Hobart, Tasmania, 7001, Australia.

Young, non-reproductive plants of Atherosperma moschatum Labill, were conditioned to a range of day lengths, night lengths and photosynthetic photon fluence rates (PPFRs). The plants conditioned to the shorter of the two day lengths grew more slowly. On protein specific bases, the leaves of these plants had greater PPFR-saturated CO exchange rates (CERs), steeper initial slopes to the CER-PPFR plots, and greater chlorophyll concentrations than did the leaves of the long day length plants. Read More

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The epidermal surface of the maize root tip: II. Abnormalities in a mutant which grows crookedly through soil.

New Phytol 1993 Dec;125(4):801-811

Department of Biology, Carleton University, Ottawa, Canada K1S 5B6.

The mutation Ageotropic (Agt) results in defective development of the surface pellicle which overlies the young epidermal cells of mesocotyl and nodal roots of maize. In roots of plants of the parent, cv. Kys, pellicle development is normal. Read More

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December 1993

Responses to ozone of varieties of common bean (Phaseolus vulgar is L.).

New Phytol 1993 Aug;124(4):617-625

Department of Botany and Plant Sciences, University of California, Riverside, CA 92521-0124, USA.

Varying modes of ozone sensitivity were detected in 12 varieties of Phaseolus vulgaris. Seedlings were exposed to 0.4-0. Read More

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Light environment alters response to ozone stress in seedlings of Acer saccharum Marsh, and hybrid Populus L.: II. Diagnostic gas exchange and leaf chemistry.

New Phytol 1993 Aug;124(4):637-646

Department of Forestry, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, USA.

Diagnostic gas exchange measurements and foliar chemical assays were conducted on hybrid poplar (Populus tristis Fisch. ×P. balsamifera L. Read More

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Light environment alters response to ozone stress in seedlings of Acer saccharum Marsh, and hybrid Populus L.: I. In situ net photosynthesis, dark respiration and growth.

New Phytol 1993 Aug;124(4):627-636

Department of Forest Resources, University of Minnesota, 1530 N. Cleveland Avenue, St. Paul, Minnesota 55108-1027, USA.

Hybrid poplar (Populus tristis Fisch. ×P. balsamifera L. Read More

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