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Showing 1 to 20 of 47 for “"Abscisic acid (ABA)"”.
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Stereocontrolled synthesis of plant growth regulators Abscisic acid and Xanthoxin
… synthesis of plant growth regulators related to abscisic acid (ABA). The biological activity of these plant growth regulators, ABA and Xanthoxin, and their derivatives is influenced by the stereochemistry of the double bond system in the side chain, the 2Z,4E-isomers being most potent.
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Cloning and characterisation of a bZIP transcription factor from a resurrection grass, Eragrostis nindensis
… dehydration and light as well as by abscisic acid (ABA). Basic leucine zipper (bZIP) transcription factors have been shown to specifically bind and activate transcription from G-boxes in a dimerized form. A 1.5 kb cDNA for a bZIP class transcription factor, designated EnGBF1, was …
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Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter
… growth regulators (PGRs) such as gibberellic acid (GA3), abscisic acid (ABA) and trinexapac-ethyl (TE) can be applied to turfgrasses to promote winter hardiness. Lethal temperature of 50% mortality measurements revealed that application of these PGRs had no effect on the acclimation status of …
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Structure and Mechanism of Hormone Perception and Signal Transduction by Abscisic Acid Receptors
Abscisic acid (ABA) is a vital plant hormone that confers abiotic stress tolerance. ABA acts through inhibition of certain members of the type 2C protein phosphatase (PP2C), resulting in activation of the SNF1-related kinases (SnRKs) that positively transduce the ABA signal. The identity of ABA …
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Ethylene response and phytohormone-mediated regulation of gene expression in Komagataeibacter xylinus ATCC 53582
… of K. xylinus. Responses to indole-3-acetic acid (IAA), abscisic acid (ABA) and ethylene, produced in situ from ethephon, were of particular focus. The effect of these phytohormones on K. xylinus cellulose production and expression of cellulose biosynthesis-related genes (bcsA, bcsB, bcsC, …
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Isolation and sequencing of a genomic clone of ESI28 : an early salt-stress induced gene of the salt-tolerant wild wheatgrass Lophopyrum elongatum
… sequence contains a putative TATA box and abscisic acid (ABA) response element (ABRE). The genomic clone contains a long open reading frame (ORF) which encodes a polypeptide of 143 amino acids with a predicted molecular mass of 15.95 kDa. The protein has two conserved domains identified as …
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Identification and characterization of signal components in early ABA signaling in Arabidopsis
<p>The phytohormone abscisic acid (ABA) regulates growth, development, and response to abiotic stress in plants. The core ABA signaling has three key components: ABA receptors PYRABACTIN RESISTANCE 1 and PYR1-Like protein (PYR1/PYLs), type 2C protein phosphatases (PP2Cs) and SNF1- related protein …
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Applied Biotechnology for in Vitro Production of Carica Papaya L
… previously for other systems. The presence of abscisic acid (ABA) in the maturation medium enhanced embryo size and increased the percentage developing into plantlets. A papain-like enzyme was detected in the somatic embryo cultures both under light or in darkness, but enzyme activity was …
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Grapesystress: Use of systems biology and new breeding technology approaches to study water stress-resistant in grapevine plants.
… genes. In parallel, V. plants expressing the ABACUS biosensor for Abscisic acid (ABA) have been generated to spatially and temporally map ABA levels in grapevine seedlings and fruits in response to various biotic and abiotic stresses, especially during water deficit processes, as well as …
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The effect of smoke teatment on the germination on four species of Mesembryanthemum: some preliminary observations
… extent of eosine dye penetration and amount of abscisic acid (ABA) in the seeds of two Karoo non-fire-prone species: Ruschia caroli and Drosanthemum speciosum, and two fynbos fire-prone species: R. macowanii and D. stokoei, of Mesembryanthemum were investigated. The seed coat characteristics of …
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Abscisic acid ameliorates glucose tolerance and obesity-induced inflammation
… laboratory sought out a natural phytochemical, abscisic acid (ABA), with chemical similarities to TZDs. Our first study demonstrated that ABA activates PPARgamma in vitro and significantly ameliorates white adipose tissue (WAT) inflammation and glucose tolerance in db/db mice. We next further …
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Effect of nutritional status on phenotypic characteristics of Arabidopsis and alfalfa in relation to the expression of AtSnRK2.9
… in stresses and their responses to the hormone abscisic acid (ABA). In Arabidopsis, all of these SnRK2 protein kinases have been shown to be activated by drought or hyperosmostic stress, with the exception of SnRK2.9. Five members are also activated by ABA treatment. Recently SnRK2.8 was linked …
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The Physiological Impacts of Soil Alkalising Agents on Legumes.
… However, pod yield of field bean (Vicia Faba L. cv Fuego) was reduced by ~30% by liming with equivalent rates of lime or CKD. In subsequent pot trials, recommended liming rates (targeting pH 6.5) consistently reduced stomatal conductance by 26-35% and 20-59% and photosynthesis by 11-20% …
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Mode of Action of Abscisic Acid in Barley Aleurone Layers: Induction of Proteins by Abscisic Acid
Abscisic acid (ABA) induces at least 16 polypeptides in barley aleurone layers as determined by two-dimensional gel electrophoretic analysis. The induction seems to be at the mRNA level because the message levels of the induced proteins closely parallel the protein levels. None of the ABA-induced …
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Analysis of maturation-specific genes in soybean seeds: Gene structure, desiccation induction and abscisic acid responsiveness
… be induced by water stress and also by exogenous abscisic acid (ABA) application. Previous studies have identified a 31-kDa maturation polypeptide (MAT) which accumulates during normal and precocious maturation of soybean (Glycine max L. Merr) seeds, and disappears rapidly during germination. The …
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Characterization of sugar-insensitive mutants and analysis of sugar-regulated gene expression in Arabidopsis thaliana
… mutant responses to sugars and the phytohormones abscisic acid, ethylene, and gibberellin have been undertaken. Sugar-insensitive mutants were isolated based on their ability to form true leaves and expanded cotyledons in the presence of high concentrations (0.27 M to 0.34 M) of sucrose or …
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Influence of salicylate and abscisic acid on the resisitance of tomato to biotrophic and necrotrophic pathogens
… signalling. The plant defence hormone, Salicylic acid (SA), was tested for its role in the response of tomato and tobacco to a necrotroph, Botrytis cinerea and a biotroph, Oidium neolycopersici). In tomato the SA defence pathway activated both basal and induced resistance against B. cinerea but …
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Circadian regulation and phytohormone responses of cytochrome P450 monooxygenase genes in Arabidopsis
… syntheses are circadian-regulated (e.g. jasmonic acid, auxin) and the time-of-day-specific transcripts of cytochrome P450 monooxygenases (P450s) involved in their syntheses and catabolisms suggest an interactions between hormone signaling network and circadian signaling network. The first phase of …
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A Physiological, Biochemical and Structural Analysis of Inositol Polyphosphate 5-Phosphatases from Arabidopsis thaliana and Humans
… pathway of the major drought-sensing hormone abscisic acid (ABA), plants ectopically expressing At5PTase1 under the control of a constitutive promoter were characterized. This characterization revealed that plants ectopically expressing At5PTase1 had an altered response to ABA. These plants …
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Farnesyltransferase: Gene Expression in Plants and Role in Plant Development
… embryos, consistent with the role of FTase in abscisic acid (ABA) signaling. An unexpected pattern of GUS activity, not correlated with dividing cells or ABA signaling, was also observed in the transgenic plants. GUS activity was detected in vascular bundles adjacent to actively-growing tissues …
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