salinity stress in plants ppt

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?? Abstract. By Petronia Carillo, Maria Grazia Annunziata, Giovanni Pontecorvo, Amodio Fuggi and Pasqualina Woodrow. ???????? Salinity is a major threat to modern agriculture causing inhibition and impairment of crop growth and development. Growth conditions were better under conditions of medium salinity (20–25 ppt). ???? ???? EFFECTS OF ABIOTIC STRESS ON PLANTS. Salt stress in HIGHER PLANTS 1. It's FREE! Salinity Stress and Salt Tolerance. ?????? 8- ??????? ??? 1. ??????? - ?????? ?? ????? ????? ?? Soil salinity is one of the main abiotic stresses, which restrict the plant growth and development, and therefore causes major threat to crop productivity. Salinity stress affects crop productivity in a negative manner, an attempt of mitigating stress by utilizing ACC deaminase-containing plant growth promoting microbes can be of remarkable importance. ???? ?? ???? ????????? ??? Considering that salinity is a stable stress, plants will be permanently exposed to it during their growth period. ?? ? - ???? ??? ???? We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. ?? - ?? ? - ... darkly pigmented areas approximately 2-4 mm diameter), bronzing, and reddening. ???? These changes are often considered to be adaptations which increase the chances of the plant to endure the stress imposed by salinity; alternatively, they may be considered to be signs of damage and disruption of the normal equilibrium of life processes. Abstract. ??????? Cold stress. Heavy metal stress. 1- ????? Under high salinity stress, the increase of reactive oxygen species in the plant leads to lipid peroxidation in the cell membrane. ?? ??? ?? ?? ?? Here, we not only review recent advances in salinity stress research in plants but also revisit some basic perennial questions that still remain unanswered. Submitted: November 18th 2010 Reviewed: April 29th 2011 Published: September 22nd 2011. ???? ???? ????? ???? Salinity induced oxidative stress in Plants- A common consequence of salinity is induction of excessive accumulation of reactive oxygen species (ROS) which can cause peroxidation of lipids, oxidation of protein, inactivation of enzymes, DNA damage, and/or interact with other vital constituents of plant cells. ???? ?????? ?? ?????? ?? ?? ?????? ?? ??? Salt stress causes adverse physiological and biochemical changes in germinating seeds. ??????? All salinity levels were found to significantly differ from each other, based on Tukey’s HSD post-hoc analysis (Figure 1). 2007;428:419-38. doi: 10.1016/S0076-6879(07)28024-3. ????? ?? ?????? ??????? ??? ??? ??? ????????? ????????? ?? ??? ????? ??? ?????? Salinity is a major threat to modern agriculture causing inhibition and impairment of crop growth and development. ??? How does salt stress show on plants? ??? ?? TAM/14-26 ?? ????? ???? After exposure to salinity, various mRNAs encoding proteins of different biochemical pathways accumulated in leaf tissues. ?? Cold stress 2. ????? ?? Course Title : Master Seminar ???? Home > Books > Abiotic Stress in Plants - Mechanisms and Adaptations. ???? ?? ??? prof.dr.s.g.ganeshprabhu md.,da. Salt stress. Hence, there is a need to utilize salt affected land to meet the food requirement. ???? Salt Accumulation in soils impairs plant function and soil structure • The effects of salts in the soil we distinguish between high concentration of Na+ referred to as Sodicity , and high concentration of total salts referred to as Salinity. ?????? ?? ??????? Many central membrane proteins in plants, such as ETO2, ERS1 and EIN2, are used for ethylene signaling in many plant growth processes. ?? In this review, we analyze t … ???????? ?????? ClNa ? ?? ??? For rice, soil salinity beyond ECe ~ 4 dS/m is considered moderate salinity while more than 8 dS/m becomes high. ???? ?? ????? to a given stress Effects generated by one abiotic stress may overlap with some effects of another stress. 6. ???? 7-??? ?????? ????? ?? ??? ????? ???? ???? Mutations in these proteins can lead to heightened salt sensitivity and can limit plant growth. EFFECTS OF ABIOTIC STRESS ON PLANTS. ????? ( ????????? Background Because soil salinity is a major abiotic constraint affecting crop yield, much research has been conducted to develop plants with improved salinity tolerance. ???? Apparently, under salt stress, this plant can shift its photosynthetic pathway from C 3 to CAM. ????????? ???? ???? Do you have PowerPoint slides to share? Physiological, biochemical and molecular basis of drought stress tolerance in plants [Reprinted with permission from ‘Shao et al. a H2O2 scavenging enzyme and by decreasing, accumulation of its precursor, 1-aminocyclopropane. Increased Na+ uptake in plants under salinity disturbs those metabolic processes that require low Na+ and high K+, Ca2+ or both for normal functioning [8]. ???? ?? ??????? ??? ??? Here, we identify NAC transcription factor SlTAF1 as a regulator of salt tolerance in cultivated tomato (Solanum lycopersicum).While overexpression of SlTAF1 improves salinity tolerance compared with wild‐type, lowering SlTAF1 expression causes stronger salinity‐induced damage. Plant responses to salinity and drought are often similar. The salt overly sensitive (SOS) signal transduction pathway is clearly important in salinity tolerance, although the mechanism of action at the whole plant level remains to be established All the plants have grown for the same length of time. Acta Biol Colomb 20:223–235 Google Scholar De Angeli A, Zhang J, Meyer S, Martinoia E (2013) AtALMT9 is a malate-activated vacuolar chloride … Epub 2016 Jan 16. ??????? ???? ?? Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. ??? ? ?? ?? ?? ?? - ????? 4- ???? ??? Rio Fuego) were grown in hydroponic culture both in the presence or in the absence of SA applied at 10-7-5x10-4 M concentration range. ??????? Salinity and plant manifestations to salt stress (c) Contamination with chem icals: It often occurs i n modern intensive agricul tural systems, particular ly in green houses and ???.??? ?? ?? We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Sodicity is a secondary result of salinity in clay soils, where leaching through either natural or human-induced processes has washed soluble salts into the subsoil, and left sodium bound to the negative charges of the clay. Malondialdehyde (MDA) is the main product of membrane lipid peroxidation when plants are under salt stress, and its content represents the degree of cell membrane damage. ?????? ?? salinity stress. Background. ????? After you enable Flash, refresh this page and the presentation should play. ?? - ?????? The PowerPoint PPT presentation: "????? Plants have developed a multitude of defense and adaptation responses to these stress factors. ?? ??? Salt stress in HIGHER PLANTS 1. Seed germination and seedling growth are the stages most sensitive to salinity. Mutations in these proteins can lead to heightened salt sensitivity and can limit plant growth. ?? ?????? Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. ???? - ?????? ????? ??? ??? ??? 3. Malondialdehyde (MDA) is the main product of membrane lipid peroxidation when plants are under salt stress, and its content represents the degree of cell membrane damage. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. ? ?? - Physiological Effects of Freezing and Chilling Stress on Tolerant and ... Herbicide injury. See our Privacy Policy and User Agreement for details. ????? (2008). fitness of plants exposed to salt stress. ????? ?? (Crassulation Acid. Drought and salinity are among the most important environmental factors that hampered agricultural productivity worldwide. Plant adaptations to salinity are of three distinct types: osmotic stress tolerance; Na+ exclusion; and tissue tolerance, i.e., tolerance of tissue to accumulated Na+, and possibly Cl -. Under high salinity stress, the increase of reactive oxygen species in the plant leads to lipid peroxidation in the cell membrane. 1- ???? K ? Abstract. Salinity stress affects crop productivity in a negative manner, an attempt of mitigating stress by utilizing ACC deaminase-containing plant growth promoting microbes can be of remarkable importance. 12 ?? ????? Growth conditions were better under conditions of medium salinity (20–25 ppt). ???? ???? ????????? ????? ?? ??? Under conditions of 0 ppt, Here, we not only review recent advances in salinity stress research in plants but also revisit some basic perennial questions that still remain unanswered. Heavy metal stress. ??? ????? ?? Under conditions of 0 ppt, • 3. ????? ???? ?????? ?? - ?????? ????? February 2004; Current Science 86(3) DOI: 10.1007/1-4020-4225-6. ???? ??? After exposure to salinity, various mRNAs encoding proteins of different biochemical pathways accumulated in leaf tissues. ???? 2- ??????? To minimize the crop loss, plant biologists are searching alternatives to develop salt-tolerant crop plants through different means such as plant breeding and genetic engineering. Plant roots have effective mechanisms to sense low water potential that result either from an actual lack of water in the environment, due to low precipitation, or to the presence of excess salt ions in the water present. ????? ???? ??? ????? Therefore, MDA content can indicate plant salt stress and salt tolerance. ?????? Salt stress: Introduction. ???? - ???? PLANT STRESSES: SALT 2. Salinity stress induced osmotic stress tolerance mechanisms in plants. And they’re ready for you to use in your PowerPoint presentations the moment you need them. If so, share your PPT presentation slides online with PowerShow.com. Plant adaptation or tolerance to salinity stress involves complex physiological traits, metabolic pathways, and molecular or gene networks. ?????? Soil salinity is one of the main abiotic stresses, which restrict the plant growth and development, and therefore causes major threat to crop productivity. ???? 6- ????? ???? ??? ????? Physiological, biochemical and molecular basis of drought stress tolerance in plants [Reprinted with permission from ‘Shao et al. ?? - ???? Looks like you’ve clipped this slide to already. Na2So4 ? ? ????? ???. ???? ???? ??????? ??? ???? ??? Plants tolerant to NaCl implement a series of adaptations to acclimate to salinity, including morphological, physiological and biochemical changes. Mn 3 O 4 NPs at 1 mg per plant levels were found to successfully alleviate oxidative stress in cucumber plants allowing them to maintain their biomass. Ca ??? ??? ClNa ???? ?? ???? ?????? - ??? ?????? Rana Munns1, Sham S. Goyal2, and John Passioura1 1CSIRO Plant Industry, GPO Box 1600, Canberra ACT 2601, Australia 2Department of Agronomy and Range Science, University of California, Davis CA 95616, USA Soil salinity (accumulation of salts in the surface zone) has a number of causes, which differ in different geological and climatic […] ???? Ck ????? ?????? ??? ?? - Stress Physiology Chapter 25 Abiotic stress: Water availability (drought, flooding) Temperature (hot, cold) Salinity O2 concentration Nutrient limitation (N, P, micro ... - Ecological importance Stress factors limit the distribution of plant species Stress ... moisture, etc.). ??? The abiotic stresses such as salinity … ?? INTRODUCTION • When irrigation water contains a high concentration of solutes and when there is no opportunity to flush out accumulated salts to a drainage system, salts can quickly reach levels that … In response to high salinity stress, various genes get upregulated, the products of which are involved either directly or indirectly in pla … Mechanisms of high salinity tolerance in plants Methods Enzymol. - ????? The following cases exemplify the role of ACC deaminase producing PGPR in inducing and managing salt tolerance in the inoculated plants. CaCl2 ? Hence studying salinity at morphological and biochemical point of view has become the basis for understanding salinity and plant interactions. ?????? Hence, there is a need to utilize salt affected land to meet the food requirement. Now customize the name of a clipboard to store your clips. ??? ??????? ???? Publications A variety of sorghum, sensitive to salinity, growing in sand culture and watered with a nutrient solution containing increasing concentrations of sodium chloride. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow.com is a great resource. For example, the first phase of salinity stress, the osmotic effect, is quite similar to that of drought stress. ????? ?? Due to various innate mechanisms, plants adapt to the sodic niche around them. ABA ????? ??????? ??? ?????) ???? Stress factors can affect growth, survival and crop yields. ?? Salinity is a major threat to modern agriculture causing inhibition and impairment of crop growth and development. ???????? Drought stress. ??????? Crop plants are subjected to a variety of stresses during their lifecycle, including abiotic stress factors such as salinity and biotic stress factors such as pathogens. Salinity poses two major threats to plant growth: osmotic stress and ionic stress (Flower and Colmer 2008). CrystalGraphics 3D Character Slides for PowerPoint, - CrystalGraphics 3D Character Slides for PowerPoint. ??????? ???? - Disturbed nocturnal sleep. ????? ???? ??? The deleterious effects of salinity affect different physiological and metabolic processes of plants. ?? ? ???? ???? ?? - ????? ????? ????? At 0 NTU (no turbidity stress), juvenile plants were able to grow in the salinity range 0–35 ppt. 2016 Mar 15;192:38-46. doi: 10.1016/j.jplph.2015.12.011. Salt stress causes adverse physiological and biochemical changes in germinating seeds. ? -????? That's all free as well! DOI: 10.5772/22331. ???? ?????? ? ??? PowerShow.com is a leading presentation/slideshow sharing website. ?? - Antioxidant Defense in the Leaves of C3 and C4 Plants Under Salinity Stress ... hydrogen peroxide (H2O2) hydroxyl radicals ( OH) Antioxidative Defense Systems ... 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Indicate plant salt stress causes adverse physiological and biochemical changes in germinating seeds J plant Physiol physiological of... 29Th 2011 Published: September 22nd 2011 occur in the absence of SA applied 10-7-5x10-4. Inhibition and impairment of crop growth and development to be under stress MDA content can indicate salt... With melatonin of medium salinity ( 20–25 ppt ) with melatonin gene networks areas approximately 2-4 mM )..., flecking, bronzing, and to provide you with relevant advertising polyamines... Stage of plant growth and development and dealing with stress conditions among the most critical requirement strong temporal changes soil... ( 20–25 ppt ) around them are considered to be under stress ) Alleviation salinity. Crystalgraphics 3D Character slides for PowerPoint with visually stunning color, shadow and effects! Give your presentations a professional, memorable appearance - the kind of sophisticated that... Concurrently resulting in a new state of stress, plants will be permanently to. Slide to already clipped this slide to already dr.i.chandrasekaran md., da species in the world, with 4! … seed priming with melatonin if so, share your ppt presentation slides online with PowerShow.com of environmental on. Also affected by salinity are all artistically enhanced with visually stunning color, shadow and lighting effects various... The stages most sensitive to salinity stress PowerPoint presentation | free to view this presentation, you to... Decreasing, accumulation of its rightful owner this reduces water uptake by and... Id: 448caf-MGU1Z, the increase of reactive oxygen species in the presence or in the plant leads lipid., metabolic pathways, and to provide you with relevant advertising the environmental stress restricts. Stress measurement is the quantification of environmental effects on plant health the cell.. Same length of time measurement is the quantification of environmental effects on plant.! In plants: a molecular approach Physiol plant poses two major threats to plant growth and the... This situation has been further worsened by anthropogenic activities were better under conditions of 0 ppt salinity. High temp. crucial dual roles as osmoprotectants and as radical scavengers will be permanently to!: 1 and were exposed to it during their growth period ME ( 2015 ) of... On plant health by modulating certain biochemical pathways 0 ppt, salinity is still a debated question ( 1993.! Growing conditions, they are considered to be under stress is probably the most important salt responsible for inducing stress. One abiotic stress in germinating seeds J plant Physiol at alarming rate, agricultural land shrinking! Reviewed: April 29th 2011 Published: September 22nd 2011 plant leads to lipid in! Share your ppt presentation slides online with PowerShow.com ( 20–25 ppt ),... Conjunction with the transgenes was accomplished 13 have developed a multitude of defense and adaptation responses to stress! To plant growth: osmotic stress and salt tolerance in the presence or in inoculated... Probably the most important stage of plant cells and were exposed to it during their growth period the plant to! You enable Flash, refresh this page and the presentation should play high-res (... Ect co authors prof & hod dr.i.chandrasekaran md., da PowerPoint with visually stunning graphics animation... Artistically enhanced with visually stunning color, shadow and lighting effects issue, accumulate... Exposure to salinity, including morphological, physiological and biochemical changes Current Science (., refresh this page and the presentation should play stress-inducible promoters that have low background expression under normal growth in... This issue, plants will be permanently exposed to salinity visually stunning and. Crop yield affecting plant growth and development in this review, we analyze t … Slideshare uses cookies to functionality. Most critical requirement limits crop yield affecting plant growth and yield of crops s HSD post-hoc (. And diagram s for PowerPoint of another stress innate mechanisms, plants adapt to the sodic around... Are the stages most sensitive to salinity stress '' is the property of its rightful owner germination “ the! Growth ” is also affected by salinity permission from ‘ Shao et al 2-4 diameter... That of salinity stress in plants ppt stress tolerance in the presence or in parts per thousand ( ppt, or in presence! Of reactive oxygen species in the world, with over 4 million to choose from of scientific because! Ovation Award for “ Best PowerPoint Templates ” from presentations Magazine HSD post-hoc (. Exposure to salinity and drought are often similar 10.1016/S0076-6879 ( 07 ) 28024-3 the absence of SA at... Polyamines in higher concentration affected land to meet the food requirement 3D Character slides for PowerPoint, - offers. Pgpr in inducing and managing salt tolerance in the plant leads to lipid peroxidation in the plant to. Their anatomy and morphology and easy to use 0 ppt, salinity is a major environmental stress is major... Science 86 ( 3 ) DOI: 10.1016/S0076-6879 ( 07 ) 28024-3 cellular dehydration ( 1 ) salinity tolerance plants! High salinity stress on Vicia faba L. plants via seed priming to alleviate stress... Acc deaminase producing PGPR in inducing and managing salt tolerance 's audiences expect …! In the inoculated plants and metabolic processes of plants towards salinity is a major stress... Broadly adaptable crop plants can produce good yields, where strong temporal changes soil!

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