Interactive role of nitric oxide and calcium chloride in enhancing tolerance to salt stress

Salt stress significantly contributes to major losses in agricultural productivity worldwide. The sustainable approach for salinity-accrued toxicity has been explored. The use of plant growth regulators/phytohormones, mineral nutrients and other signaling molecules is one of the major approaches for reversing salt-induced toxicity in plants. Application of the signaling molecules such as nitric oxide (NO) and ethylene (ETH) and major mineral nutrient such as nitrogen (N) and sulfur (S) play significant roles in combatting the major consequences of salt stress impacts in plants. However, the literature available on gaseous signaling molecules (NO/ETH) or/and mineral nutrients (N/S) stands alone, and major insights into the role of NO or/and ETH along with N and S in plant-tolerance to salt remained unclear. Thus, this review aimed to (a) briefly overview salt stress and highlight salt-induced toxicity, (b) appraise the literature reporting potential mechanisms underlying the role of gaseous signaling molecules and mineral nutrient in salt stress tolerance, and (c) discuss NO and ETH along with N and S in relation to salt stress tolerance. In addition, significant issues that have still to be investigated in this context have been mentioned.

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The role of nitric oxide signalling in response to salt stress in Chlamydomonas reinhardtii

Planta ◽

10.1007/s00425-016-2528-0 ◽

2016 ◽

Vol 244 (3) ◽

pp. 651-669 ◽

Cited By ~ 24

Author(s):

Xiaodong Chen ◽

Dagang Tian ◽

Xiangxiang Kong ◽

Qian Chen ◽

Abd_Allah E.F. ◽

...

Keyword(s):

Nitric Oxide ◽

Salt Stress ◽

Chlamydomonas Reinhardtii

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Role of Nitric Oxide in Salt Stress-induced Programmed Cell Death and Defense Mechanisms

Nitric Oxide Action in Abiotic Stress Responses in Plants ◽

10.1007/978-3-319-17804-2_13 ◽

2015 ◽

pp. 193-219 ◽

Cited By ~ 1

Author(s):

Péter Poór ◽

Gábor Laskay ◽

Irma Tari

Keyword(s):

Nitric Oxide ◽

Cell Death ◽

Salt Stress ◽

Programmed Cell Death ◽

Defense Mechanisms

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Role of Exogenous Melatonin, Hydrogen Sulfide and Nitric Oxide on Organic Acid Content of Eruca sativa L. under Salt Stress

International Journal of Scientific Research and Management ◽

10.18535/ijsrm/v9i11.ah01 ◽

2021 ◽

Vol 9 (11) ◽

pp. 330-335

Author(s):

Metin Turan ◽

Tuba Arjumend ◽

Ertan Yıldırım ◽

Melek Ekinci ◽

Betül Ince

Keyword(s):

Nitric Oxide ◽

Hydrogen Sulfide ◽

Salt Stress ◽

Organic Acid ◽

Exogenous Melatonin ◽

Negative Effect ◽

Harmful Effects ◽

Organic Acid Content ◽

Physiological And Biochemical

Salt stress affects agricultural output by influencing numerous internal metabolisms in plants and disrupting physiological and biochemical activities such as photosynthesis, translocation, respiration, and growth stimulants. The role of exogenous melatonin, hydrogen sulfide and nitric oxide application on the organic acid contents of rocket plants under salt stress was examined in this study. Different salt doses (0, 150 and 250 mM NaCl) and exogenous applications (0, 50 and100 µM) were made to rocket plants under the greenhouse conditions. Plants leaves and roots exhibited a decline in the organic acid contents under salinity stress. Application of the amendments, however, was found significant in mitigating the negative effect of salt stress. Melatonin and hydrogen sulfide treatments had a stronger anti-salt action in the leaves. On the other hand, nitrous oxide role was more obvious in the roots followed by melatonin. With this, exogenous applications to the plant mitigated the harmful effects of salt stress on organic acid contents depending on the dose.

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