Induction of Increased Salt Tolerance in<i>Sorghum bicolor</i>by NaCl Pretreatment

Amzallag, G. N.; Lerner, H. R.; Poljakoff‐Mayber, A.

doi:10.1093/jxb/41.1.29

Cited by 122 publications

(65 citation statements)

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“…In plants, salt stress increases [Ca 2ϩ ] cyt that is presumed to facilitate adaptation (46, 47). Furthermore, plants or cultured cells that are exposed to sublethal levels of salt acquire greater stress adaptive capacity (48,49), and tomato seedlings subjected to hyperosmotic pretreatment exhibit enhanced salt tolerance (50). The results of this study provide direct evidence that hyperosmotic stress, generated by salt or a non-ionic osmotic solute, induces a transient [Ca 2ϩ ] cyt increase in yeast cells, and this [Ca 2ϩ ] cyt transient mediates ionic but not osmotic stress adaptation.…”

Section: Transient Increase In Ca Cytmentioning

confidence: 71%

An Osmotically Induced Cytosolic Ca2+ Transient Activates Calcineurin Signaling to Mediate Ion Homeostasis and Salt Tolerance of Saccharomyces cerevisiae

Matsumoto

Ellsmore

Cessna

et al. 2002

Journal of Biological Chemistry

137

119

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Section: Transient Increase In Ca Cytmentioning

confidence: 71%

An Osmotically Induced Cytosolic Ca2+ Transient Activates Calcineurin Signaling to Mediate Ion Homeostasis and Salt Tolerance of Saccharomyces cerevisiae

Matsumoto

Ellsmore

Cessna

et al. 2002

Journal of Biological Chemistry

137

119

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“…This has already been demonstrated for different herbaceous species such as soybean, rice, sorghum and pea (Amzallag et al, 1990;Umezawa et al, 2000;Djanaguiraman et al, 2006;Pandolfi et al, 2012). In the literature the timing of pre-treatment is very different, from 7 days in rice (Djanaguiraman et al, 2006) to 20 days in Sorghum bicolor (Amzallag et al, 1990), and it appears that the length of the pre-treatment is strongly related to the plant species.…”

Section: Discussionmentioning

confidence: 88%

“…As such, acclimation to external environmental changes occurs in plants thanks to internal adjustments within tissues and cells, enabling cell metabolism to proceed under these somewhat altered conditions (DemmigAdams et al, 2008). It was reported that salt tolerance of many plant species can be increased by previous exposure to a low level of stress for a certain period of time (Amzallag et al, 1990;Bethke and Drew, 1992;Umezawa et al, 2000;Silveira et al, 2001;Djanaguiraman et al, 2006). Reported beneficial effects included improved survival, growth rate and yield (Amzallag et al, 1990;Djanaguiraman et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Acclimation improves salt stress tolerance in Zea mays plants

Pandolfi

Azzarello

Mancuso

et al. 2016

Journal of Plant Physiology

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a b s t r a c tPlants exposure to low level salinity activates an array of processes leading to an improvement of plant stress tolerance. Although the beneficial effect of acclimation was demonstrated in many herbaceous species, underlying mechanisms behind this phenomenon remain poorly understood. In the present study we have addressed this issue by investigating ionic mechanisms underlying the process of plant acclimation to salinity stress in Zea mays. Effect of acclimation were examined in two parallel sets of experiments: a growth experiment for agronomic assessments, sap analysis, stomatal conductance, chlorophyll content, and confocal laser scanning imaging; and a lab experiment for in vivo ion flux measurements from root tissues. Being exposed to salinity, acclimated plants (1) retain more K + but accumulate less Na + in roots; (2) have better vacuolar Na + sequestration ability in leaves and thus are capable of accumulating larger amounts of Na + in the shoot without having any detrimental effect on leaf photochemistry; and (3) rely more on Na + for osmotic adjustment in the shoot. At the same time, acclimation affect was not related in increased root Na + exclusion ability. It appears that even in a such salt-sensitive species as maize, Na + exclusion from uptake is of a much less importance compared with the efficient vacuolar Na + sequestration in the shoot.

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“…Pre-treatment of plants with a low concentration of NaCl has also been reported as an effective process to induce a higher level of salt tolerance. This phenomenon is usually referred to as salt acclimation or acquired salinity tolerance (Amzallag et al, 1990;Umezawa et al, 2000;Pandolfi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Salt acclimation processes in wheat

Janda

Darkó

Shehata

et al. 2016

Plant Physiology and Biochemistry

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Young wheat plants (Triticum aestivum L. cv. Mv Béres) were exposed to 0 or 25 mM NaCl for 11 days (salt acclimation). Thereafter the plants were irrigated with 500 mM NaCl for 5 days (salt stress). Irrigating the plants with a low concentration of NaCl successfully led to a reduction in chlorotic symptoms and in the impairment of the photosynthetic processes when the plants were exposed to subsequent high-dose salt treatment. After exposure to a high concentration of NaCl there was no difference in leaf Na content between the salt-acclimated and non-acclimated plants, indicating that salt acclimation did not significantly modify Na transport to the shoots. While the polyamine level was lower in salt-treated plants than in the 2 control, salt acclimation led to increased osmotic potential in the leaves. Similarly, the activities of certain antioxidant enzymes, namely glutathione reductase, catalase and ascorbate peroxidase, were significantly higher in salt-acclimated plants. The results also suggest that while SOS1, SOS2 or NHX2 do not play a decisive role in the salt acclimation processes in young wheat plants; another stress-related gene, WALI6, may contribute to the success of the salt acclimation processes. The present study suggested that the responses of wheat plants to acclimation with low level of salt and to treatment with high doses of salt may be fundamentally different.

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Induction of Increased Salt Tolerance inSorghum bicolorby NaCl Pretreatment

Cited by 122 publications

References 0 publications

An Osmotically Induced Cytosolic Ca2+ Transient Activates Calcineurin Signaling to Mediate Ion Homeostasis and Salt Tolerance of Saccharomyces cerevisiae

An Osmotically Induced Cytosolic Ca2+ Transient Activates Calcineurin Signaling to Mediate Ion Homeostasis and Salt Tolerance of Saccharomyces cerevisiae

Acclimation improves salt stress tolerance in Zea mays plants

Salt acclimation processes in wheat

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