Involvement of trehalose in hydrogen sulfide donor sodium hydrosulfide-induced the acquisition of heat tolerance in maize (Zea mays L.) seedlings

Botanical Studies
Zhong-Guang LiLi-Ping Zhu

Abstract

Trehalose, a non-reducing disaccharide, which involves in the acquisition of various stress tolerance, while hydrogen sulfide (H2S) is considered as a cell signal molecule, but H2S-induced heat tolerance and involvement of trehalose in plants is still unclear. In present study, pretreatment with hydrogen sulfide donor sodium hydrosulfide (NaHS) markedly increased the accumulation of endogenous H2S in maize seedlings under normal culture conditions, which in turn improved survival percentage of maize seedlings and mitigated increase in electrolyte leakage and malonaldehyde (MDA) accumulation under heat stress. In addition, treatment with NaHS activated increase in the activity of trehalose-6-phosphate phosphatase (TPP) under normal culture conditions, followed by induced the accumulation of endogenous trehalose, but this accumulation was eliminated by addition of sodium citrate, an inhibitor of TPP. During the process of heat stress, maize seedlings treated with NaHS maintained higher TPP activity and trehalose content than those of control. On the other hand, exogenous application of trehalose also increased the content of endogenous trehalose in maize seedlings under normal culture conditions, alleviated increase in electrolyt...Continue Reading

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Citations

Jan 10, 2020·Physiologia Plantarum·Akhilesh K Pandey, Arti Gautam
Jun 16, 2015·Scientific Reports·Mohammad Golam MostofaLam-Son Phan Tran
Feb 1, 2021·Ageing Research Reviews·Alexander S SokolovAlexey A Moskalev
Apr 12, 2021·Nitric Oxide : Biology and Chemistry·Ming-Yue WeiHai-Lei Zheng
Jul 2, 2021·Scientific Reports·Yuhang LiuShengju Long

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Methods Mentioned

BETA
MDA
transgenic

Software Mentioned

SigmaPlot
SPSS

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