microbial models and salt stress tolerance in plants
Tài liệu Phytohormones and Abiotic Stress Tolerance in Plants ppt
... receiverdomain and a long C-terminal part containing a single-repeat MYB-type DNA-binding domain (Sakai et al. 1998) called a GARP domain (Riechmann et al. 2000) and the proline- and glutamine-rich ... GmbZIP44, GmbZIP62, and GmbZIP78belonging to subgroup S, C, and G, respectively, were also involved in salt and freezing stresses. These proteins bind to ABRE and couple of other cis-actingelements ... response regulators (Yamaguchi-Shinozaki and Shinozaki 2006). ZmABI4 interacts specifically with CE and functions in ABAsignaling during germination and in sugar sensing in maize (Niu et al. 2002).Among...
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Salt Stress Tolerance of Plants pptx
... complicatedsince other SOS signal pathway intermediates and outputs and other signalling cascades necessary for salt tolerance may exist. Recent progress in the elucidation of salt stress signalling and ... 1. Salt stress- induced, Ca2+-dependent signalling thatmediates Na+homeostasis and salt tolerance. SOS1, plasma membrane Na+/H+antiporter; SOS2,serine/threonine kinase; SOS3, Ca2+binding ... homeostasis.Constitutive activation of yeast calcineurin in the host or in plants increases salt tolerance by predisposing the plants to survive the stress episode (Mendoza et al.,1996; Pardo et...
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Salt Stress Tolerance of Plants doc
... salinity and is identifying genetic determinants that effect salt tolerance. Recent confirmation that many salt tolerance determinants areubiquitous in plants has led to the use of genetic models, ... complicatedsince other SOS signal pathway intermediates and outputs and other signalling cascades necessary for salt tolerance may exist. Recent progress in the elucidation of salt stress signalling and ... 1. Salt stress- induced, Ca2+-dependent signalling thatmediates Na+homeostasis and salt tolerance. SOS1, plasma membrane Na+/H+antiporter; SOS2,serine/threonine kinase; SOS3, Ca2+binding...
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Environmental Adaptations and Stress Tolerance of Plants in the Era of Climate Change pptx
... compatible osmolytes in plants subject to salt stress are GB, b -alaninebetaine, prolinebetaine, choline- O -sulphate, hydroxypro-linebetaine, and pipecolatebetaine (Ashraf and Fig. 1.1 Chemical ... (2007) Exogenous proline and glycinebetaine increase NaCl-induced ascorbate-glutathione cycle enzyme activities, and proline improves salt tolerance more than glycinebetaine in tobacco Bright ... tetrameric iron porphyrins and play a role in stress tolerance against oxidative stress. Catalases are produced in peroxisomes and glyoxysomes. Catalases are involved in elim-inating hydrogen peroxide...
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Báo cáo khoa học: Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants ppt
... ofOsTOP6A3 and OsTOP6B confers stress tolerance in transgenic Arabidopsis plants and may be used toengineer stress tolerance in crop plants. Furthermore,for a better understanding of the functions ... role in brassinosteroid-medi-ated growth and development [14]. The transcriptlevels of OsTOP6A2, OsTOP6A3, and OsTOP6Bincreased in response to auxin and cytokinin, indica-ting their role in ... pro-teins also predicted several potential putative phos-phorylation sites for casein kinase II, protein kinase C,tyrosine kinase, histidine kinase, cAMP-dependent and cGMP-dependent protein kinases,...
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ABIOTIC STRESS RESPONSE IN PLANTS – PHYSIOLOGICAL, BIOCHEMICAL AND GENETIC PERSPECTIVES docx
... Abiotic and Biotic Stress Response Crosstalk in Plants 7 carboxyterminal calmodulin-like domain containing EF-hand calcium-binding sites plus a N-terminal protein kinase domain (Cheng ... controlling these tolerance responses to stresses and in engineering and breeding more efficient and better adapted new crop cultivars. This book is broadly divided into sections on signaling in ... abiotic stress, nucleic acids, proteins and enzymes, genes and genomes and adaptation and tolerance. It focuses on in depth molecular mechanism of abiotic stress effects on plants. In addition, insights...
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ABIOTIC STRESS IN PLANTS – MECHANISMS AND ADAPTATIONS pptx
... Mechanisms and Tolerance 191 Chapter 9 Current Knowledge in Physiological and Genetic Mechanisms Underpinning Tolerances to Alkaline and Saline Subsoil Constraints of Broad Acre Cropping in Dryland ... others in their requirements for survival in salty environments. An understanding of how single cell responses to salt are coordinated with organismal and whole-plant responses to maintain an ... membrane, enhanced sequestering of ions and sugars into the vacuole, reducing water potential and resulting in increased salt tolerance when compared to wild-type plants (Pasapula, Shen, Kuppu,...
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Physiological and biochemical responses to salt stress in the mangrove pptx
... mangrove in Okinawa, Japan.2. Materials and methods2.1. Source of plants and growthSeeds of B. gymnorrhiza were collected from Iriomote Island, Okinawa, Japan, at theend of May in 1997 and June in ... chloride, and betaine concentrations in isolatedvacuoles from salt- grown Atriplex gmelini leaves. Plant Physiol. 84, 173–177.McKersie, B.D., Leshem, Y.Y., 1994. Stress and Stress Coping in Cultivated ... respiration.Burchett et al. (1989) also found a salt induced increase in respiration in both A. marina and A. corniculatum, with a higher increase in the more salt- sensitive A. corniculatum.Net photosynthesis,...
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Báo cáo y học: "NITRIC OXIDE (NO), CITRULLINE – NO CYCLE ENZYMES, GLUTAMINE SYNTHETASE AND OXIDATIVE STRESS IN ANOXIA (HYPOBARIC HYPOXIA) AND REPERFUSION IN RAT BRAIN"
... synthase. The increased activities of argininosuccinate synthetase and argininosuccinate lyase suggest the increased and effective recycling of citrulline to arginine in anoxia, making nitric ... arginine at the site of synthesis. Arginine is a semi essential amino acid and in CNS, its availability depends upon: (a) uptake from the circu-lating arginine and (b) recycling of citrulline ... in brain in anoxia as observed by in- crease in NOx concentration in this study support the earlier findings of NO involvement in pathophysiol-ogy of hypobaric hypoxia in brain (42-43). In this...
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Tài liệu Báo cáo khoa học: A DExD⁄ H box RNA helicase is important for K+ deprivation responses and tolerance in Arabidopsis thaliana docx
... Histochem-ical staining indicated that AtHELPS is mainly expressed in the youngseedlings and vascular tissues of leaves and roots. Using both helps mutants and overexpression lines, we observed that, in the ... mutant and OE line seedlingson normal Murashige and Skoog (MS) plates and in a medium con-taining 100 lM K+(LK). The steady-state flux profile of K+wasexamined by continuous flux recording ... important role in regulating theexpression of AKT1, CBL1 ⁄ 9 and CIPK23 in Arabidop-sis plants under low-K+ stress. Net K+flux increased in the helps mutant rootsunder low-K+ stress For plants, ...
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