Unearthing the alleviatory mechanisms of hydrogen sulfide in aluminum toxicity in rice

Copyright © 2022 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 182(2022) vom: 01. Juli, Seite 133-144
1. Verfasser: Zhu, Chun Quan (VerfasserIn)
Weitere Verfasser: Wei, QianQian, Hu, Wen Jun, Kong, Ya Li, Xiang, Xing Jia, Zhang, Hui, Cao, Xiao Chuang, Zhu, Lian Feng, Liu, Jia, Tian, Wen Hao, Jin, Qian Yu, Zhang, Jun Hua
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Al toxicity AsA-GSH cycle Cell wall Energy production Ethylene H(2)S Transcriptome Pectins 89NA02M4RX mehr... Aluminum CPD4NFA903 Hydrogen Sulfide YY9FVM7NSN
Beschreibung
Zusammenfassung:Copyright © 2022 Elsevier Masson SAS. All rights reserved.
Hydrogen sulfide (H2S) improves aluminum (Al) resistance in rice, however, the underlying mechanism remains unclear. In the present study, treatment with 30-μM Al significantly inhibited rice root growth and increased the total Al content, apoplastic and cytoplasm Al concentration in the rice roots. However, pretreatment with NaHS (H2S donor) reversed these negative effects. Pretreatment with NaHS significantly increased energy production under Al toxicity conditions, such as by increasing the content of ATP and nonstructural carbohydrates. In addition, NaHS stimulated the AsA-GSH cycle to decrease the peroxidation damage induced by Al toxicity. Pretreatment with NaHS significantly inhibited ethylene emissions in the rice and then inhibited pectin synthesis and increased the pectin methylation degree to reduce cell wall Al deposition. The phytohormones indole-3-acetic and brassinolide were also involved in the alleviation of Al toxicity by H2S. The transcriptome results further confirmed that H2S alleviates Al toxicity by increasing the pathways relating to material and energy metabolism, redox reactions, cell wall components, and signal transduction. These findings improve our understanding of how H2S affects rice responses to Al toxicity, which will facilitate further studies on crop safety
Beschreibung:Date Completed 18.05.2022
Date Revised 18.05.2022
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2022.04.006