Regulation of arsenate stress by nitric oxide and hydrogen sulfide in Oryza sativa seedlings Implication of sulfur assimilation, glutathione biosynthesis, and the ascorbate-glutathione cycle and its genes

Regulation of arsenate stress by nitric oxide and hydrogen sulfide in Oryza sativa seedlings : Implication of sulfur assimilation, glutathione biosynthesis, and the ascorbate-glutathione cycle and its genes

Copyright © 2024 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 215(2024) vom: 15. Okt., Seite 109001
1. Verfasser: Mishra, Vipul (VerfasserIn)
Weitere Verfasser: Tripathi, Durgesh Kumar, Rai, Padmaja, Sharma, Shivesh, Singh, Vijay Pratap
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Crop yields Glutathione biosynthesis Growth Redox regulation Stress tolerance Sulfur assimilation Hydrogen Sulfide YY9FVM7NSN Nitric Oxide mehr... 31C4KY9ESH Arsenates Ascorbic Acid PQ6CK8PD0R Glutathione GAN16C9B8O Sulfur 70FD1KFU70 arsenic acid N7CIZ75ZPN Reactive Oxygen Species Plant Proteins Cystathionine gamma-Lyase EC 4.4.1.1
Beschreibung
Zusammenfassung:Copyright © 2024 Elsevier Masson SAS. All rights reserved.
Seed priming by nitric oxide (NO) and hydrogen sulphide (H2S) in combating against abiotic stress in plants is well documented. However, knowledge of fundamental mechanisms of their crosstalk is scrambled. Therefore, the reported study examined the probable role of NO and H2S in the mitigation of arsenate toxicity (As(V)) in rice seedlings and whether their potential signalling routes crossover. Results report that As(V) toxicity limited shoot and root length growth with more As accumulation in roots. As(V) further caused elevated reactive oxygen species levels, inhibited ascorbate-glutathione cycle enzymes and relative gene expression of its enzymes and thus, causing lipid and protein oxidation. These results correlate with reduced nitric oxide synthase-like and L-cysteine desulfhydrase activity along with endogenous NO and H2S. While, L-NAME or PAG augmented As(V) toxicity, and addition of SNP or NaHS effectively reversed their respective effects. Furthermore, SNP under PAG or NaHS under L-NAME were able to pacify As(V) stress, implicating that endogenous NO and H2S efficiently ameliorate As(V) toxicity but without their shared signaling in rice seedlings
Beschreibung:Date Completed 14.09.2024
Date Revised 14.09.2024
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2024.109001