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Si-SNP协同作用的改善作用,以减轻 Brassica juncea 中诱导的压力

Samarth Sharma¹, Padmaja Rai¹, Ved Prakash¹

¹Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India.

Environmental pollution (Barking, Essex : 1987)

|July 7, 2023

概括

这项研究表明,将 (Si) 和酸 (SNP) 联合应用有效地降低了Brassica juncea植物中的毒性. 这种双重应用有助于植物克服重金属压力,提高作物产量.

科学领域:

环境科学环境科学
植物生物学植物生物学
生物化学生物化学

背景情况:

重金属污染,特别是 (Cr),严重影响作物产量和全球粮食安全.
是植物的一种非必需元素,并导致显著的有害影响,包括氧化应激.

研究的目的:

为了研究外源性酸 (SNP) 和 (Si) 在减轻毒性在Brassica juncea的有效性.
了解SNP和Si的Cr减轻压力的潜在机制,重点关注氧化应激和抗氧化剂反应.

主要方法:

在水培条件下,Brassica juncea植物受到 (100μM) 毒性.
测试了SNP (氧化供体) 和Si的外部应用,无论是单独的还是组合的.
分析了形态,生理和生化参数,包括ROS水平和抗氧化基因表达 (DHAR,MDHAR,APX,GR).

主要成果:

的毒性显著降低了植物生长 (长度,生物质) 和生理参数 (叶绿素,胡卜素).
暴露引起氧化应激,其证据是H2O2和O2−•等活性氧物种 (ROS) 的增加,以及脂质过氧化.
应用Si和SNP,特别是在组合中,通过调节ROS积累和增强抗氧化剂代谢来抵消Cr诱导的氧化应激.
结合Si和SNP治疗可以调高关键的抗氧化基因 (DHAR,MDHAR,APX,GR).

结论:

外源性SNP和Si有效地减轻了Brassica juncea中的毒性.
SNP和Si的联合应用表明了协同效应,为减轻作物中的重金属压力提供了一个有希望的战略.
这项研究提供了关于使用SNP和Si作为生物刺激剂来改善受污染的农田作物弹性方面的见解.

关键词:

抗氧化剂是一种抗氧化剂.基因表达基因表达这是一种重金属,重金属.氧化氧化是什么?氧化应激是一种氧化应激.这就是ROSOS ROS.

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