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Hormesis in plants: Physiological and biochemical responses.
Ecotoxicology and Environmental Safety ( IF 6.8 ) Pub Date : 2020-09-08 , DOI: 10.1016/j.ecoenv.2020.111225
Arshad Jalal 1 , José Carlos de Oliveira Junior 1 , Janaína Santos Ribeiro 1 , Guilherme Carlos Fernandes 1 , Giovana Guerra Mariano 1 , Vanessa Dias Rezende Trindade 1 , André Rodrigues Dos Reis 2
Affiliation  

Hormesis is a favorable response to low level exposures to substance or to adverse conditions. This phenomenon has become a target to achieve greater crop productivity. This review aimed to address the physiological mechanisms for the induction of hormesis in plants. Some herbicides present a hormetic dose response. Among them, those with active ingredients glyphosate, 2,4-D and paraquat. The application of glyphosate as a hormesis promoter is therefore showing promess . Glyphosate has prominent role in shikimic acid pathway, decreasing lignin synthesis resulting in improved growth and productivity of several crops. Further studies are still needed to estimate optimal doses for other herbicides of crops or agricultural interest. Biostimulants are also important, since they promote effects on secondary metabolic pathways and production of reactive oxygen species (ROS). When ROS are produced, hydrogen peroxide act as a signaling molecule that promote cell walls malleability allowing inward water transport causing cell expansion. . Plants'ability to overcome several abiotic stress conditions is desirable to avoid losses in crop productivity and economic losses. This review compiles information on how hormesis in plants can be used to achieve new production levels.



中文翻译:

植物的兴奋作用:生理和生化反应。

兴奋剂是对低水平接触物质或不利条件的有利反应。这种现象已成为实现更高农作物生产率的目标。这篇综述旨在解决诱导植物中兴奋作用的生理机制。一些除草剂呈现出令人讨厌的剂量反应。其中,有效成分为草甘膦,2,4-D和百草枯的那些。因此,草甘膦作为增效促进剂的应用表现良好。草甘膦在sh草酸途径中起着重要作用,减少了木质素的合成,从而改善了几种作物的生长和生产力。仍需要进一步的研究来估计其他作物或农业利益除草剂的最佳剂量。生物刺激剂也很重要 因为它们促进了对次要代谢途径和活性氧(ROS)产生的影响。当产生ROS时,过氧化氢充当信号分子,促进细胞壁的延展性,允许向内的水运输导致细胞膨胀。。希望植物具有克服几种非生物胁迫条件的能力,以避免作物生产力的损失和经济损失。这篇综述汇编了有关如何将植物中的兴奋剂用于达到新的生产水平的信息。

更新日期:2020-09-09
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