Ammonia borane positively regulates cold tolerance in Brassica napus via hydrogen sulfide signaling

文献类型： 外文期刊

第一作者： Cheng, Pengfei

作者： Cheng, Pengfei;Feng, Liying;Zhang, Shuoyu;Li, Longna;Shen, Wenbiao;Guan, Rongzhan;Long, Weihua;Xian, Zhihui;Zhang, Jiefu

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关键词： Ammonia borane; Brassica napus; Cold stress; Hydrogen sulfide; Oxidative stress

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）

ISSN： 1471-2229

年卷期： 2022 年 22 卷 1 期

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收录情况： SCI

摘要： Background: Cold stress adversely influences rapeseeds (Brassica napus L.) growth and yield during winter and spring seasons. Hydrogen (H-2) is a potential gasotransmitter that is used to enhance tolerance against abiotic stress, including cold stress. However, convenience and stability are two crucial limiting factors upon the application of H-2 in field agriculture. To explore the application of H-2 in field, here we evaluated the role of ammonia borane (AB), a new candidate for a H-2 donor produced by industrial chemical production, in plant cold tolerance. Results: The application with AB could obviously alleviate the inhibition of rapeseed seedling growth and reduce the oxidative damage caused by cold stress. The above physiological process was closely related to the increased antioxidant enzyme system and reestablished redox homeostasis. Importantly, cold stress-triggered endogenous H2S biosynthesis was further stimulated by AB addition. The removal or inhibition of H2S synthesis significantly abolished plant tolerance against cold stress elicited by AB. Further field experiments demonstrated that the phenotypic and physiological performances of rapeseed plants after challenged with cold stress in the winter and early spring seasons were significantly improved by administration with AB. Particularly, the most studied cold-stress response pathway, the ICE1-CBF-COR transcriptional cascade, was significantly up-regulated either. Conclusion: Overall, this study clearly observed the evidence that AB-increased tolerance against cold stress could be suitable for using in field agriculture by stimulation of H2S signaling.

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