Foliar applied 24-epibrassinolide alleviates salt stress in rice (Oryza sativa L.) by suppression of ABA levels and upregulation of secondary metabolites
Foliar applied 24-epibrassinolide alleviates salt stress in rice (Oryza sativa L.) by suppression of ABA levels and upregulation of secondary metabolites
复制标题
叶面喷施 24-表油菜素内酯通过抑制 ABA 水平和上调次生代谢物缓解水稻 (Oryza sativa L.) 的盐胁迫
DOI：
10.1080/17429145.2021.2002444
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发表时间：
2021-01
影响因子：
3.2
通讯作者：
Jia Haitao
中科院分区：
文献类型：
--
作者：
Shahzad Raheel;Harlina Putri Widyanti;Ewas Mohamed;Zhenyuan Pan;Nie Xinhui;Gallego Pedro P.;Khan Shahid Ullah;Nishawy Elsayed;Khan Amir Hamid;Jia Haitao
盐胁迫阻碍了植物的生长，干扰了许多生理生化和分子生物学过程。本研究评价了叶面喷施24-表油菜素（EBR）对减轻水稻盐胁迫的潜在作用。我们的研究结果表明，盐胁迫降低了一些生长和生理参数，并大大增加了水稻幼苗的氧化应激。叶面喷施EBR可通过改善水稻植株的生长和生理特性来弥补盐胁迫的负面影响。此外，EBR的应用大大减少了氧化损伤，提高抗氧化酶和酚类化合物在水稻植株在盐胁迫。有趣的是，ABA相关基因的表达分析也证实了EBR处理降低了内源阿坝水平。此外，EBR的应用上调了类胡萝卜素和类黄酮途径基因，从而显示了其在盐胁迫下激活水稻次生代谢的功能。主成分分析（PCA）结果表明，盐胁迫下，EBR处理水稻植株的响应与酚类化合物和类黄酮的积累密切相关。总的来说，这项研究提供了有用的洞察EBR的独特作用，通过激活潜在的酶和非酶防御机制，以减轻水稻植株的盐度。
Salt stress hinders plant growth and disrupts many physio-biochemical and molecular processes. The present study evaluated the potential role of foliar applied 24-epibrassinolide (EBR) for mitigating the adverse effects of salinity in rice plants. Our findings showed that salt stress reduced several growth and physiological parameters, and substantially increased oxidative stress in rice seedlings. The foliar application of EBR replenished the negative effects of salt stress by improving plant growth and physiological attributes in rice plants. Moreover, application of EBR substantially reduced oxidative injuries by enhancing antioxidant enzymes and phenolic compounds in rice plants during salt stress. Interestingly, the endogenous ABA levels were declined in stressed plants by EBR treatment, also validated by expression analysis of ABA-related genes. In addition, application of EBR upregulated carotenoids and flavonoids pathway genes, thus showing its function to activate secondary metabolism in rice plants during salt stress. The principal component analysis (PCA) indicated that, under salt stress, the response of EBR-treated rice plants was strongly correlated with the accumulation of phenolic compounds and flavonoids. Collectively, this study presents useful insight into the distinct role of EBR by activating underlying enzymatic and non-enzymatic defense mechanisms to mitigate salinity in rice plants.
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影响因子：
5.6
作者：
Su X;Wei F;Huo Y;Xia Z
通讯作者：
Xia Z
影响因子：
3.7
作者：
Mainuddin M;Alam MM;Maniruzzaman M;Kabir MJ;Mojid MA;Hasan MM;Schmidt EJ;Islam MT
通讯作者：
Islam MT
DOI：
10.3390/plants10020354
发表时间：
2021-02-12
期刊：
Plants (Basel, Switzerland)
影响因子：
--
作者：
Desoky EM;Mansour E;Ali MMA;Yasin MAT;Abdul-Hamid MIE;Rady MM;Ali EF
通讯作者：
Ali EF
DOI：
10.1186/s43141-021-00183-6
发表时间：
2021-05-29
期刊：
Journal, genetic engineering & biotechnology
影响因子：
--
作者：
Shahzad R;Ewas M;Harlina PW;Khan SU;Zhenyuan P;Nie X;Nishawy E
通讯作者：
Nishawy E
影响因子：
3.7
作者：
Zhang Y;Liao H
通讯作者：
Liao H