scholarly journals Hydrogen Sulfide Generated by l-Cysteine Desulfhydrase Acts Upstream of Nitric Oxide to Modulate Abscisic Acid-Dependent Stomatal Closure

2014 ◽  
Vol 166 (4) ◽  
pp. 2065-2076 ◽  
Author(s):  
Denise Scuffi ◽  
Consolación Álvarez ◽  
Natalia Laspina ◽  
Cecilia Gotor ◽  
Lorenzo Lamattina ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Abscisic Acid ◽  
Hydrogen Sulfide ◽  
Stomatal Closure ◽  
Cysteine Desulfhydrase

Hydrogen sulfide may function downstream of hydrogen peroxide in salt stress-induced stomatal closure in Vicia faba

2019 ◽  
Vol 46 (2) ◽  
pp. 136 ◽  
Author(s):  
Yinli Ma ◽  
Wei Zhang ◽  
Jiao Niu ◽  
Yu Ren ◽  
Fan Zhang
Keyword(s):  
Hydrogen Peroxide ◽  
Hydrogen Sulfide ◽  
Salt Stress ◽  
Vicia Faba ◽  
Laser Scanning ◽  
Stomatal Closure ◽  
Guard Cells ◽  
H2o2 Production ◽  
Diphenylene Iodonium ◽  
Cysteine Desulfhydrase

The roles of hydrogen sulfide (H2S) and hydrogen peroxide (H2O2) in signalling transduction of stomatal closure induced by salt stress were examined by using pharmacological, spectrophotographic and laser scanning confocal microscopic (LSCM) approaches in Vicia faba L. Salt stress resulted in stomatal closure, and this effect was blocked by H2S modulators hypotaurine (HT), aminooxy acetic acid (AOA), hydroxylamine (NH2OH), potassium pyruvate (C3H3KO3) and ammonia (NH3) and H2O2 modulators ascorbic acid (ASA), catalase (CAT), diphenylene iodonium (DPI). Additionally, salt stress induced H2S generation and increased L-/D-cysteine desulfhydrase (L-/D-CDes, pyridoxalphosphate-dependent enzyme) activity in leaves, and caused H2O2 production in guard cells, and these effects were significantly suppressed by H2S modulators and H2O2 modulators respectively. Moreover, H2O2 modulators suppressed salt stress-induced increase of H2S levels and L-/D-CDes activity in leaves as well as stomatal closure of V. faba. However, H2S modulators had no effects on salt stress-induced H2O2 production in guard cells. Altogether, our data suggested that H2S and H2O2 probably are involved in salt stress-induced stomatal closure, and H2S may function downstream of H2O2 in salt stress-induced stomatal movement in V. faba.

scholarly journals Regulation of Hydrogen Sulfide Metabolism by Nitric Oxide Inhibitors and the Quality of Peaches during Cold Storage

Antioxidants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 401 ◽  
Author(s):  
Biao Geng ◽  
Dandan Huang ◽  
Shuhua Zhu
Keyword(s):  
Nitric Oxide ◽  
Hydrogen Sulfide ◽  
Methyl Ester ◽  
Sodium Tungstate ◽  
Sulfite Reductase ◽  
Positive Effects ◽  
Cysteine Desulfhydrase ◽  
Nitric Oxide Inhibitors ◽  
Oxide Synthase

Both nitric oxide (NO) and hydrogen sulfide (H2S) have been shown to have positive effects on the maintenance of fruit quality during storage; however, the mechanisms by which NO regulates the endogenous H2S metabolism remain unknown. In this experiment, peaches were immersed in solutions of NO, potassium 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (c-PTIO, as an NO scavenger), N-nitro-l-arginine methyl ester (l-NAME, as an inhibitor of nitric oxide synthase (NOS)-like activity), and sodium tungstate (as an inhibitor of nitrate reductase), and the resulting changes in the H2S metabolism of peaches were studied. The results showed that exogenous NO reduced the contents of endogenous H2S, Cys, and sulfite; decreased the activities of l-/d-cysteine desulfhydrase (l-/d-CD), O-acetylserine (thiol)lyase (OAS-TL), and sulfite reductase (SiR); and increased the activity of β-cyanoalanine synthase (β-CAS). Both c-PTIO and sodium tungstate had similar roles in increasing the H2S content by sustaining the activities of l-/d-CDs, OAS-TL, and SiR. l-NAME increased the H2S content, mainly by maintaining the d-CD activity. The results suggest that NO, c-PTIO, l-NAME, and sodium tungstate differently regulate the H2S metabolism of peaches during storage.

CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in Arabidopsis thaliana

2019 ◽  
Vol 42 (3) ◽  
pp. 1033-1044 ◽  
Author(s):  
Luosha Zhang ◽  
Xiong Shi ◽  
Yutao Zhang ◽  
Jiajing Wang ◽  
Jingwei Yang ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Hydrogen Peroxide ◽  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Stomatal Closure

scholarly journals Nitric oxide production occurs after cytosolic alkalinization during stomatal closure induced by abscisic acid

2008 ◽  
Vol 31 (11) ◽  
pp. 1717-1724 ◽  
Author(s):  
VIJAY K. GONUGUNTA ◽  
NUPUR SRIVASTAVA ◽  
MALLIKARJUNA R. PULI ◽  
AGEPATI S. RAGHAVENDRA
Keyword(s):  
Nitric Oxide ◽  
Abscisic Acid ◽  
Stomatal Closure ◽  
Nitric Oxide Production ◽  
Oxide Production

scholarly journals Hydrogen Sulfide May Function Downstream of Nitric Oxide in Ethylene-Induced Stomatal Closure in Vicia faba L.

2012 ◽  
Vol 11 (10) ◽  
pp. 1644-1653 ◽  
Author(s):  
Jing LIU ◽  
Zhi-hui HOU ◽  
Guo-hua LIU ◽  
Li-xia HOU ◽  
Xin LIU
Keyword(s):  
Nitric Oxide ◽  
Hydrogen Sulfide ◽  
Vicia Faba ◽  
Stomatal Closure ◽  
Vicia Faba L
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