• The phytohormone abscisic acid (ABA) plays a role in stresses that alter plant water status and may also regulate root gravitropism and hydrotropism. (nature.com)
  • The phytohormone abscisic acid (ABA) plays multiple roles in plant survival and fitness. (kpfu.ru)
  • An Ancestral Role for CONSTITUTIVE TRIPLE RESPONSE1 Proteins in Both Ethylene and Abscisic Acid Signaling. (ox.ac.uk)
  • Link to all annotated objects annotated to regulation of abscisic acid-activated signaling pathway. (cyverse.org)
  • Link to all direct and indirect annotations to regulation of abscisic acid-activated signaling pathway. (cyverse.org)
  • Synthesis and regulation of auxin and abscisic acid in maize. (nih.gov)
  • Abscisic acid (ABA or abscisin II) is a plant hormone. (wikipedia.org)
  • In 1963, abscisic acid was first identified and characterized as a plant hormone by Frederick T. Addicott and Larry A. Davis. (wikipedia.org)
  • When plants are under drought stress, a large amount of the stress hormone abscisic acid (ABA) is produced to help them resist drought stress. (phys.org)
  • A potential signal is the plant hormone abscisic acid, ABA. (lancs.ac.uk)
  • The hormone abscisic acid (ABA) plays a central role in the response and adaptation to environmental constraints. (mpg.de)
  • The plant hormone they used is called abscisic acid (ABA) and plays a key role in physiological processes such as seed maturation and seed dormancy. (chemistryviews.org)
  • Abscisic acid (ABA) is an essential hormone that allows plants to respond to environmental stresses such as high salinity, drought and cold. (nih.gov)
  • It has been proposed that ultraviolet-B (UV-B) radiation activates grapevines antioxidant defense system and abscisic acid (ABA) acts downstream in the signaling pathway. (ajevonline.org)
  • Any process that modulates the frequency, rate or extent of abscisic acid (ABA) signaling. (cyverse.org)
  • However, we also show that PpCTR1L unexpectedly has dual functions and additionally modulates abscisic acid (ABA) signaling. (ox.ac.uk)
  • The effects of abscisic acid (ABA) and abscinazole (Abz-E3M), an inhibitor of ABA 8'-hydroxylase, on drought stress were examined in apple seedlings. (actahort.org)
  • Abscisic acid (ABA) regulates the physiological and biochemical mechanisms required to tolerate drought stress, which is considered as an important abiotic stress. (umn.edu)
  • Gibberellic acid acts as an antagonist to abscisic acid activity in this assay. (usda.gov)
  • Temporal-spatial interaction between reactive oxygen species and abscisic acid regulates rapid systemic acclimation in plants. (unr.edu)
  • We further demonstrate that SAA is stress specific and that a temporal-spatial interaction between ROS and abscisic acid regulates rapid SAA to heat stress in plants. (unr.edu)
  • Abscisic acid is also produced in the roots in response to decreased soil water potential (which is associated with dry soil) and other situations in which the plant may be under stress. (wikipedia.org)
  • The main role of PAs in plant stress is to counteract the damage caused by reactive oxygen species (ROS) and to prevent free radical damage or oxidative stress while also modulating ion channels to protect the morphology and integrity of cell membranes, nucleic acids, and proteins. (eurekalert.org)
  • Plant nurseries use abscisic acid to keep plants dormant during shipping. (dummies.com)
  • Carotenoids are also precursors of bioactive metabolites called apocarotenoids, including vitamin A and the phytohormones abscisic acid (ABA) and strigolactones (SLs). (frontiersin.org)
  • In order to enhance berry coloration of bright-red grape cultivars, the effects of abscisic acid (ABA) treatment on the quantity and composition of anthocyanins as well as the expression of genes related to flavonoid biosynthesis in the berry were examined. (scirp.org)
  • Abscisic acid is involved in phenolic compounds biosynthesis, mainly anthocyanins, in leaves of Aristotelia chilensis plants (Mol. (umn.edu)
  • Dive into the research topics of 'Abscisic acid is involved in phenolic compounds biosynthesis, mainly anthocyanins, in leaves of Aristotelia chilensis plants (Mol. (umn.edu)
  • Concentrations of abscisic acid (ABA) and of the glucose ester of ABA (ABA-GE) were measured with an ELISA technique, after purification of the sap samples using high performance liquid chromatography (HPLC). (afs-journal.org)
  • Les concentrations en acide abscissique (ABA) et en glucose-ester d'ABA (ABA-GE) ont été déterminées dans ces échantillons de sève à l'aide d'un dosage Elisa, après purification par HPLC. (afs-journal.org)
  • En l'absence de sécheresse, les concentrations moyennes en ABA étaient de l'ordre de 30 μmol m -3 , et de 45 μmol m -3 pour l'ABA-GE. (afs-journal.org)
  • seules les concentrations en ABA-GE ont fortement augmenté d'une année sur l'autre. (afs-journal.org)
  • Tardieu and Davies (1992 ) found that the abscisic acid (ABA) content of root tips increased when maize (Zea mays L.) was grown in compacted soil, while the application of 1μM ABA to unstressed seedlings promoted the growth of short, thick roots similar to those produced in response to mechanical impedance ( Hartung et al.1994 ). (isa-arbor.com)
  • CmNAC1 was ubiquitously expressed in different organs, and its transcript was induced by salinity, cold, dehydration, H 2 O 2 , and abscisic acid (ABA) treatment. (frontiersin.org)
  • Abscisic acid (ABA) plays a series of significant physiology roles in higher plants including but not limited to promote bud and seed dormancy, accelerate foliage fall, induce stomatal closure, inhibit growth and enhance resistance. (techscience.com)
  • Sensitivity of Gramineacous Leaf Growth to Abscisic Acid: Its Potential Importance to Leaf Growth of Plants in Drying Soil. (lancs.ac.uk)
  • Abscisin II is presently called abscisic acid (ABA). (wikipedia.org)
  • Abscisic acid in combination with auxin is very effective in increasing transcript abundance of CesA genes as measured by quantitative, reverse transcription PCR. (usda.gov)
  • The (1 S )- or (+)-enantiomer (PubChem CID 12305886 ), is the naturally occurring and more active form of abscisic acid. (guidetopharmacology.org)
  • Genes that are active are copied into a messenger ribonucleic acid (mRNA) or transcript. (usda.gov)
  • We show the compound without specified stereochemistry to represent racemic abscisic acid. (guidetopharmacology.org)
  • Gene Ontology (GO) enrichment analysis demonstrated that there were several genes involved in the response to different phytohormones , including abscisic acid (ABA), auxin (IAA), ethylene (ETH), gibberellins (GAs), and cytokinins (CTKs). (bvsalud.org)
  • The diagram below shows indoleacetic acid (IAA, illustrated with pink dots), a naturally occurring auxin, moving from the sunny to the shady side of a shoot tip. (umn.edu)
  • The transcript levels of these genes were enhanced significantly in the presence of plant hormones, including abscisic acid (ABA), auxin, salicylic acid, and gibberellic acid. (frontiersin.org)
  • This site about plant hormones presents a valuable summary of the action of the major plant hormones: auxin, gibberellin, cytokinin, abscisic acid, ethylene, and others. (ou.edu)
  • An international research team from Germany, Australia, and the USA has studied the evolution of the phytohormone abscisic acid (ABA). (isaaa.org)
  • The phytohormone Abscisic Acid (ABA) is the major component of abiotic stress tolerance in plants and coordinates a complex regulatory network enabling plants to cope with the stress. (alliedacademies.org)
  • The phytohormone abscisic acid (ABA) plays multiple roles in plant survival and fitness. (kpfu.ru)
  • The plant hormone abscisic acid (ABA) regulates drought stress responses by mediating stomatal closure, thereby reducing transpirational water loss. (ashs.org)
  • OsPIL15 is a key transcription factor regulating abscisic acid (ABA) signaling by binding to the PBE-box motif of the OsABI5 promoter and regulates stomatal aperture. (plantae.org)
  • Phytochrome Interacting Factor Regulates Stomatal Aperture by Coordinating Red Light and Abscisic Acid. (plantae.org)
  • In intact guard cells, abscisic acid (ABA) enhances (primes) the Ca 2+ -sensitivity of downstream signaling events that result in activation of S-type anion channels during stomatal closure, providing a specificity mechanism in Ca 2+ -signaling. (elsevierpure.com)
  • Angiosperms are able to respond rapidly to the first sign of dry conditions, a decrease in air humidity, more accurately described as an increase in the vapor pressure deficit between the leaf and the atmosphere (VPD), by abscisic acid (ABA)-mediated stomatal closure. (edu.au)
  • BAK1 plays contrasting roles in regulating abscisic acid-induced stomatal closure and abscisic acid-inhibited primary root growth in Arabidopsis. (cdc.gov)
  • The five major groups of plant hormones - auxins, cytokinins, gibberellins, ethylene, and abscisic - acid are distinguished by their chemical structures and the response they evoke within the plant (see Table 4.1). (umn.edu)
  • 14. Farnesylation mediates brassinosteroid biosynthesis to regulate abscisic acid responses. (nih.gov)
  • 1-Aminocyclopropane-1-carboxylic acid and abscisic acid during the germination of sugar beet (Beta vulgaris L. (royalholloway.ac.uk)
  • The transition from dormancy to germination is a very important biological process, and extensive studies have demonstrated that phytohormones abscisic acid (ABA) and gibberellin acid (GA) are major determinants. (nih.gov)
  • Our findings indicate that KNO 3 0.1% and 100 mg L −1 acetylsalicylic acid were the most effective treatments for improvement of seed germination properties in this species. (hindawi.com)
  • Soaking for 24 hours in 250-600 mg L −1 gibberellic acid, 5-20% potassium nitrate, or 10% hydrogen peroxide solution increased seed germination. (hindawi.com)
  • Although the roles of salicylate (SA) and jasmonic acid (JA) have been well-characterized in Fusarium head blight (FHB)-infected cereals, the roles of other phytohormones remain more ambiguous. (canada.ca)
  • abstract = "Abscisic acid (ABA) can exist as two enantiomers, with (+)-ABA as the naturally occur-fine form. (york.ac.uk)
  • The newly solved structure shows a three-dimensional representation of a critical plant hormone called abscisic acid, attached to its "target" protein called PYR1. (ucsd.edu)
  • We wanted to know if abscisic acid bound specifically to the PYR1 protein as a hormone receptor or whether it acted like a glue between PYR1 and partner proteins. (ucsd.edu)
  • Collaborating closely with Schroeder and his lab, Getzoff and her group decided to try to figure out exactly how PYR1 was involved in drought resistance by looking at PYR1 and abscisic acid molecules on the micro-and nano-scales. (ucsd.edu)
  • Abiotic stress effects on grapevine ( Vitis vinifera L.): Focus on abscisic acid-mediated consequences on secondary metabolism and berry quality. (infowine.com)
  • The purpose of this study is to determine the effects of oral abscisic acid (ABA) on glucose metabolism in subjects with defined prediabetes. (adventhealthresearchinstitute.com)
  • Comprehensive profiling of endogenous hormones demonstrated altered cytokinin, gibberellic acid (GA), and JA metabolism in a FHB-resistant cultivar, whereas challenge by Fusarium graminearum increased abscisic acid (ABA), JA, and SA in both FHB-susceptible and -resistant cultivars. (canada.ca)
  • Three clones, selected for their variation in salt tolerance, were examined regarding their growth and physiological responses on exposure to salt (NaCl) and abscisic acid (ABA) in vitro. (edu.au)
  • He identified how a hormone called abscisic acid triggers crucial mechanisms for reducing water loss in plants during extended periods of dry weather. (nih.gov)
  • Simultaneous mutations in four of these related genes led to a greatly impaired abscisic acid response and reduced drought resistance. (ucsd.edu)
  • An LTR retrotransposon, Boty-aba , and a solo LTR were identified by in silico genomic sequence analysis, and both were detected within the abscisic acid gene cluster in B. cinerea B05.10, but not in B. cinerea SAS56. (ejbiotechnology.info)
  • Earlier this year, however, the picture of how abscisic acid works became clearer when two separate groups of scientists discovered a cluster of genes associated with the hormone. (ucsd.edu)
  • We discovered that the rice PIF family transcription factor OsPIL15 interacts with the NIGT1/HRS1/HHO family transcription factor OsHHO3 and promotes transcription of ABSCISIC ACID INSENSITIVE 5 ( OsABI5 ). (plantae.org)
  • We investigated the effect of soil texture on grapevine response to water stress, leaf abscisic acid concentration and berry quality, in two adjacent vineyards located in the renewed Cannubi hill of Barolo (Langhe area, CN, North-West Italy). (infowine.com)
  • The impressive divergence in structure of the abscisic acid gene clusters putatively gives new clues to investigate the divergence in the abscisic acid production yields of different B. cinerea strains. (ejbiotechnology.info)
  • In the normally watered plants the abscisic acid is produced cytoplasm of the mesophyll cells . (lifeeasy.org)
  • When drought-tolerant plants detect dry conditions, they synthesize abscisic acid, which causes changes from root tips to leaves and flowers. (ucsd.edu)
  • An overview of Genetic Toxicology Bacterial Mutagenicity study conclusions related to Abscisic acid (14375-45-2). (nih.gov)
  • Abscisic acid is a natural growth inhibitor . (lifeeasy.org)
  • Treatments included pretreatment with KNO 3 (0.1 and 0.3 percent) for 48 hours, acetylsalicylic acid to the moisture in the petri dish (100, 200 and 100 mg L −1 ), prechilling (4 degrees centigrade for 10 days), hot water (70°C) for 5 min, ethereal sulfuric acid (60%) for 5 and 10 min, thiourea with concentrations of 0.1% and 0.3%, and control treatment (irrigation with distilled water). (hindawi.com)
  • Safety Data Sheet for Absicic Acid is availabe upon requested. (biochemicals.cn)