Open AccessJournal Article
The effect of salinity on growth, hormones and mineral elements in leaf and fruit of tomato cultivar PKM1.
TLDR
Results showed that leaf area and dry matter content of tomato fruits decreased with application of elevated salt stress, however endogenous content of IAA, ABA and proline was found to be increasing with increase in salt treatment, suggesting that leaves are more sensitive than fruits.Abstract:
Tomato cultivar PKM 1 were subjected to 25, 50, 100, 150 and 200 mM NaCl stress and response of tomato plant to saltstress were determined by assessing the variability of different biochemical parameters In this present study endogenouscontent of growth hormones IAA and ABA in leaves, proline and mineral (Na+ and K+) content in leaves and maturefruits were estimated Leaf area and dry matter content of tomato fruits under salt stress were determined to study theeffect of salinity on photosynthetic yield Results showed that leaf area and dry matter content of tomato fruits decreasedwith application of elevated salt stress, however endogenous content of IAA, ABA and proline was found to beincreasing with increase in salt treatment Application of NaCl caused increase in Na+ content, while K+ content andK+/Na+ ratio decreased with increase in salt stress Another striking point is that increase in proline and Na+ contentwas more in leaves than fruits, which suggests that leaves are more sensitive than fruitsKeyword: Salt stress, IAA, ABA, Proline, Na+, dry matterread more
Citations
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Plant Response to Salt Stress and Role of Exogenous Protectants to Mitigate Salt-Induced Damages
TL;DR: This chapter attempts to summarize differential responses of plants to salinity with special reference to growth, physiology and yield and discusses the progress made in using exogenous protectants to mitigate salt-induced damages in plants.
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Effects of Salt and Water Stress on Plant Growth and on Accumulation of Osmolytes and Antioxidant Compounds in Cherry Tomato
TL;DR: In this paper, the effects of salt and water stress on growth and several stress markers were investigated in tomato plants, including growth parameters (stem length and number of leaves) and chlorophyll contents.
References
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Journal ArticleDOI
Rapid determination of free proline for water-stress studies
TL;DR: In this article, a simple colorimetric determination of proline in the 0.1 to 36.0 μmoles/g range of fresh weight leaf material was presented.
Journal ArticleDOI
Comparative physiology of salt and water stress
TL;DR: It is important to avoid treatments that induce cell plasmolysis, and to design experiments that distinguish between tolerance of salt and tolerance of water stress, to understand the processes that give rise toolerance of salt, as distinct from tolerance of osmotic stress.
Journal ArticleDOI
Salt and drought stress signal transduction in plants
TL;DR: Salt and drought stress signal transduction consists of ionic and osmotic homeostasis signaling pathways, detoxification (i.e., damage control and repair) response pathways, and pathways for growth regulation.
Journal ArticleDOI
Plant cellular and molecular responses to high salinity.
TL;DR: Evidence for plant stress signaling systems is summarized, some of which have components analogous to those that regulate osmotic stress responses of yeast, some that presumably function in intercellular coordination or regulation of effector genes in a cell-/tissue-specific context required for tolerance of plants.
Journal ArticleDOI
Na+ Tolerance and Na+ Transport in Higher Plants
Mark Tester,Romola Davenport +1 more
TL;DR: This work suggests that equally important in a wide range of conditions are processes involving the management of Na(+) movements within the plant, and requires more knowledge of cell-specific transport processes and the consequences of manipulation of transporters and signalling elements in specific cell types.