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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.11.055
|2 doi
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|a pubmed24n1064.xml
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|a (DE-627)NLM319497364
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|a (NLM)33385704
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|a (PII)S0981-9428(20)30618-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Khan, M Nasir
|e verfasserin
|4 aut
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|a Calcium-hydrogen sulfide crosstalk during K+-deficient NaCl stress operates through regulation of Na+/H+ antiport and antioxidative defense system in mung bean roots
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 16.02.2021
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|a Date Revised 16.02.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Masson SAS. All rights reserved.
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|a Present investigation reports the role of calcium (Ca2+) and hydrogen sulfide (H2S) crosstalk associated with Vigna radiata seedlings subjected to K+ deficient conditions under short-term (24 h) and long-term (72 h) NaCl stress. Perusal of the data reveals that under short-term NaCl stress an initial decline in K+ level led to the elevation in Ca2+ and H2S levels along with improvement in antioxidant system and reduction in reactive oxygen species (ROS) production. Under long-term NaCl stress a further decline in K+ content was deleterious that led to a lower K+/Na+ ratio. This was followed by reduction in antioxidant system along with excessive accumulation of ROS and methylglyoxal content, and increased membrane damage. However, supplementation of the seedling roots with Ca2+ enhanced biosynthesis of H2S through enhancing cysteine pool. The present findings suggest that synergistic action of Ca2+ and H2S induced the activity of H+-ATPase that created H+ gradient which in turn induced Na+/H+ antiport system that accelerated K+ influx and Na+ efflux. All of these together contributed to a higher K+/Na+ ratio, activation of antioxidative defense system, and maintenance of redox homeostasis and membrane integrity in Ca2+-supplemented stressed seedlings. Role of Ca2+ and H2S in the regulation of Na+/H+ antiport system was validated by the use of sodium orthovanadate (plasma membrane H+-ATPase inhibitor), tetraethylammonium chloride (K+ channel blocker), and amiloride (Na+/H+ antiporter inhibitor). Application of Ca2+-chelator EGTA (ethylene glycol-bis(b-aminoethylether)-N,N,N',N'-tetraacetic acid) and H2S scavenger hypotaurine abolished the effect of Ca2+, suggesting the involvement of Ca2+ and H2S in the alleviation of NaCl stress. Moreover, use of EGTA and HT also substantiates the downstream functioning of H2S during Ca2+-mediated regulation of plant adaptive responses to NaCl stress. To sum up, present findings reveal the association of Ca2+ and H2S signaling in the regulation of ion homeostasis and antioxidant defense during K+-deficient NaCl stress
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|a Journal Article
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|a Ascorbate-glutathione cycle
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|a Calcium signaling
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|a Hydrogen sulfide
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|a Na(+)/H(+) antiport
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| 650 |
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|a Proline
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|a Redox homeostasis
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| 650 |
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|a Antioxidants
|2 NLM
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| 650 |
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|a Sodium-Hydrogen Exchangers
|2 NLM
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| 650 |
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|a Sodium Chloride
|2 NLM
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| 650 |
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|a 451W47IQ8X
|2 NLM
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| 650 |
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|a Potassium
|2 NLM
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| 650 |
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|a RWP5GA015D
|2 NLM
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| 650 |
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|a Calcium
|2 NLM
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| 650 |
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|a SY7Q814VUP
|2 NLM
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| 650 |
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|a Hydrogen Sulfide
|2 NLM
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| 650 |
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|a YY9FVM7NSN
|2 NLM
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| 700 |
1 |
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|a Siddiqui, Manzer H
|e verfasserin
|4 aut
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|a Mukherjee, Soumya
|e verfasserin
|4 aut
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|a Alamri, Saud
|e verfasserin
|4 aut
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| 700 |
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|a Al-Amri, Abdullah A
|e verfasserin
|4 aut
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|a Alsubaie, Qasi D
|e verfasserin
|4 aut
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|a Al-Munqedhi, Bander M A
|e verfasserin
|4 aut
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|a Ali, Hayssam M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 159(2021) vom: 01. Feb., Seite 211-225
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:159
|g year:2021
|g day:01
|g month:02
|g pages:211-225
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|u http://dx.doi.org/10.1016/j.plaphy.2020.11.055
|3 Volltext
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|d 159
|j 2021
|b 01
|c 02
|h 211-225
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