Pdf comparative physiology of salt and water stress scinapse. Water deficit has several effects on photosynthesis. Regulation of plant aquaporins in response to water stress. Salinity reduces the ability of plants to take up water, and this quickly causes reductions in growth. Jul 20, 2015 apr 27, 2020 lecture 10 water stress physiology botany notes edurev is made by best teachers of botany. Water turnover rates of freeliving terrestrial vertebrates as a function of body size water turnover. Seed germination and seedling growth parameters of rice oryza sativa l. Salinity is a major limiting factor to crop productivity in the world especially in semiarid regions. Comparative physiology of salt and water stress published on feb 1, 2002 in plant cell and environment 5.
Pdf plant responses to salt and water stress have much in common. Munnscomparative physiology of salt and water stress. The initial reduction in shoot growth is probably due to hormonal. Effect of salinity stress on the morphology and physiology.
Department of botany and plant physiology, faculty of agrobiology, food and natural. The aim of this study was to investigate the differences between salt stress and alkali stress in metabolic profiles and nutrient accumulation of wheat. This comparative study enhanced the knowledge of stress physiology in suaedas. Lecture 10 water stress physiology botany notes edurev. Effects of salt and water stress on leaf production, sodium. May 16, 2019 to understand the effects of salt stress on the protein level of okra, a comparative proteomic analysis of okra seedlings grown in the presence of 0 or 300 mmol l. Germination and seedling growth of pulse crop vigna spp. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Stress physiology in crop plants harry mussell, richard c.
Apr 01, 2007 read regulation of plant aquaporins in response to water stress, comparative biochemistry and physiology part a. The rwc was almost the same between the two species under control treatment 87 and 88% in foxtail millet and proso millet, respectively, however, under stress conditions, it tended to be lower in foxtail millet 70 and 61% under ss and as. It is well known that salinization highph has been considered as a major environmental threat to agricultural systems. Comparative physiology of salt and water stress 241 a saltspeci. These initial changes in growth are driven by the osmotic component of salt stress, which immediately affects the. Salinity reduces the ability of plants to take up water, and this quickly causes reductions in growth rate, along with a suite of. Considering the devastating effect of salt stress on plants, one of the important tasks for plant biologists is to explore the approaches that are able to develop salt tolerance in crop plants. Engage your students during remote learning with video readalouds. American journal of physiologyregulatory, integrative and. Abstract plant responses to salt and water stress have much in common.
Comparative metabolic responses and adaptive strategies of. Convective water flow across respiratory epithelia in water breathing organisms maintains transcutaneous oxygen o 2 partial pressure p o 2 gradients that drive o 2 uptake. Comparative physiology of salt and water stress munns. Comparative metabolomics in glycine max and glycine soja. Publications a variety of sorghum, sensitive to salinity, growing in sand culture and watered with a nutrient solution containing increasing concentrations of sodium chloride. Salt cress thellungiella halophila, a halophyte, is a genetic model system with a small plant size, short life cycle, copious seed production, small genome size, and an efficient transformation. Effects of salt and alkali stresses on growth, osmotic adjustment and ionic balance of suaeda glauca bge. Salt stress induced damages on the photosynthesis of. The initial reduction in shoot growth is probably due to hormonal signals generated by the roots. Pdf comparative physiology of salt and water stress. Comparison between the water and salt stress effects on plant. Effects of water and heat stress on carbon metabolism of plants with c3 and c4 photosynthesis. Comparative physiological and transcriptomic analyses. Drought stress of cowpea and soybean under tropical conditions.
Comparative studies on growth and physiological responses to. Pdf munns, r comparative physiology of salt and water stress. Effects of salt stress on plant growth, stomatal response and. Comparative metabolic responses and adaptive strategies of wheat triticum aestivum to salt and alkali stress. Comparative effects of salt and alkali stress on photosynthesis and root physiology of oat at anthesis. The method of relative water content rwc in leaves is used to determine the status of plant water reflecting the tissue metabolic activity. Comparative physiology of salt and water stress comparative physiology of salt and water stress munns, r. The aim of this study was to evaluate the photosynthetic resistance of jatropha curcas l. Comparative physiological and biochemical mechanisms of. Comparative transcriptomic profiling of a salttolerant. Central to this circuit is the supraoptic nucleus son of the hypothalamus, which is responsible for the biosynthesis of the hormones, arginine vasopressin avp and oxytocin oxt, and their transport to.
Feb 01, 2002 comparative physiology of salt and water stress munns, r. Comparative physiology of salt and water stress munns 2002. Effect of salinity stress on the morphology and physiology of. Physiological responses to salt stress in pi365967 and moneymaker. Following hatch, larval fishes lack a developed gill and the skin is the dominant site of gas transfer, yet few studies have addressed the contribution of convective. Effects of abiotic stress on plants the university of liverpool.
In saltstressed plants, in addition to osmotic effects it is also affected by toxic. Physiological and molecular mechanisms of salt and water. Comparison between the water and salt stress effects on. Comparative physiology of salt and water stress, plant cell. Comparative genomics in salt tolerance between arabidopsis. Salinity reduces the ability of plants to take up water, and this quickly. Jun 29, 2008 effects of salt and alkali stresses on growth, osmotic adjustment and ionic balance of suaeda glauca bge. Its genes have a high sequence identity 90%95% at cdna level to genes of its close relative, arabidopsis. Comparative physiology of salt and water stress citeseerx. Pdf munns, r comparative physiology of salt and water. Plant water relations and proline accumulations in soybean. The growth of wheat seedling leaves and roots decreased under salinity stress compared with that of the control group. Selecting for drought and heat resistance in grain sorghum.
Physiology and proteome responses of two contrasting rice mutants and their wild type parent under salt stress conditions at the vegetative stage akram ghaffari, javad gharechahi, babak nakhoda, ghasem hosseini salekdeh. The significance of a twophase growth response to salinity in wheat and barley. Comparative physiological and transcriptomic analyses provide integrated insight into osmotic, cold, and salt stress tolerance mechanisms in banana. However, the initial effect of water limitation is usually stomatal closure. Galarsum, bd 2331 and bari soybean6 in a vinyl house of banghabandhu sheikh mujibur rahman agricultural university, bangladesh during january to march, 2012 to analyze leaf water status, leaf temperature, xylem exudation and proline accumulation under salt and water stress environment. Comparative proteomic analysis of okra abelmoschus. Organic osmolytes are small solutes used by cells of numerous waterstressed organisms and tissues to maintain cell volume. Plant responses to salt and water stress have much in common. Water stress, osmolytes and proteins1 integrative and. Immunolabeling for the cystic fibrosis transmembrane conductance regulator chloride channel cftr.
Comparison between the water and salt stress effects on plant growth and development. Citeseerx comparative physiology of salt and water stress. Comparative physiology of salt and water stress prezi. A spatiotemporal understanding of growth regulation. Under this circumstance, the stomatal conductance reduced immediately and transiently 8. Identification of salt stress response genes in rosa. A comparison of physiological and transcriptome responses to. Comparative study on the resistance of suaeda glauca and suaeda salsa to drought, salt. Salt loading sl and water deprivation wd are experimental challenges that are often used to study the osmotic circuitry of the brain. Apr 27, 2020 lecture 10 water stress physiology botany notes edurev is made by best teachers of botany. Ion and water transport mechanisms that compensate for changes in composition and volume of intracellular and extracellular compartments have been generally well defined using vertebrate cell and in vivo models. Under salt stress, the water potential of the soil is reduced by the large quantity of ions, so it is very difficult for the roots to take up enough water to maintain natural physical development. This document is highly rated by botany students and has been viewed 860 times.
Effects of water, salt and nitrogen stress on sunflower scielo. Comparative study on the resistance of suaeda glauca and. A comprehensive understanding on how plants respond to salinity. Eccrine sweat gland reabsorptive duct caught in oblique cross section in biopsied human skin. Journal of plant physiology salt stress resistance. In the initial stage of salt treatment two days, plant protective process began to take effect, which was embodied in the regulation of oxidoreductase activities and plant hormone signal transduction pathway.
Munns r 2002 comparative physiology of salt and water stress. American journal of physiologyregulatory, integrative and comparative physiology aug 2011 r267r559. Comparative physiological and biochemical mechanisms of salt. The study was carried out with three soybean genotypes viz. Feb 01, 2002 comparative physiology of salt and water stress published on feb 1, 2002 in plant cell and environment 5. Comparative physiological and transcriptomic analyses provide.
Ion balance is in most cases a major determinant of salt tolerance. Growth regulation by salt stress is a multiphasic process. Comparative ecophysiological study of salt stress for wild. This is because studies on the comparative physiology of plants to water and salt stress are few, and it is necessary perform more studies involving different plant species, as cultivate and as native, subjected at the same. All known osmolytes are amino acids and derivatives, polyols and sugars, methylamines, and urea. Jan 01, 2014 physiology and proteome responses of two contrasting rice mutants and their wild type parent under salt stress conditions at the vegetative stage akram ghaffari, javad gharechahi, babak nakhoda, ghasem hosseini salekdeh. The results showed that alkali stress clearly inhibited the growth of s. Comparative physiology of salt and water stress the uwa profiles. Comparative effects of salt stress and alkali stress on the growth, photosynthesis, solute accumulation, and ion balance of barley plants. An international journal proteomics physiology part d. Effects of salt stress on water status, photosynthesis and chlorophyll. Water stress x salt stress effects on plant growth and development plant responses to drought and salinity are complexes and involve adaptive changes and or deleterious effects.
Comparative physiology of salt and water stress, plant. Comparative effects of salt and alkali stresses on growth. Suaeda glauca and suaeda salsa are annual chenopod herbs that grow well in salinealkali lands, and they share a number of morphological and physiological traits. Salinity is a major abiotic stress limiting growth and productivity of plants in many areas of the world due to increasing use of poor quality of water for irrigation and soil salinization. Zheng yh, xu xb, wang my, zheng xh, li zj, jiang gm. Salinity reduces the ability of plants to take up water, and this quickly causes reductions in growth rate, along with a suite of metabolic changes identical to those caused by water stress. These qualities are advantageous not only in genetics but also in genomics, such as. The decrease in the water potential occurred in both abiotic stresses results in reduced cell growth, root growth and shoot growth and also causes inhibition of cell. Parul parihar, samiksha singh, rachana singh, vijay pratap singh, sheo mohan prasad. Plant adaptation or tolerance to salinity stress involves complex physiological traits, metabolic pathways, and molecular or gene networks. Physiological and molecular basis of drought stress tolerance adapted from 8, 26.
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