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Metabolic response of soybean leaves induced by short-term exposure of ozone
Ecotoxicology and Environmental Safety ( IF 6.2 ) Pub Date : 2021-02-11 , DOI: 10.1016/j.ecoenv.2021.112033
Xinxin Zhang 1 , Xiaofan Zhang 2 , Tianzuo Wang 3 , Caihong Li 1
Affiliation  

The ever-increasing ozone (O3) concentration has led to reduced production and altered quality of soybean. Abundant reports have explored the damage mechanisms of O3 on soybean. However, how the elevated O3 affects metabolite profiling of soybean remains to be poorly understood. Here, we compare the metabolic profile of soybean leaves under charcoal filtered air (CF, <20 ppb) and short-term elevated O3 concentration (EO, 100 ppb). High level of O3 affects metabolites for the tricarbonic acid (TCA) cycle, reactive oxygen species, cell wall composition and amino acids. Significantly, jasmonic acid-related metabolite promoting stomata closure is highly induced with 125-fold change. Furthermore, O3 fumigation alters the expression of genes contributing to the biosynthesis of certain metabolites in TCA cycle. Together, these findings identify a wide range of changed metabolites in response to O3 pollution. Our results pave the way for the genetic improvement of soybean to adapt to O3 pollution to maintain stable yields.



中文翻译:


臭氧短期暴露引起大豆叶片代谢反应



不断增加的臭氧(O 3 )浓度导致大豆产量减少和品质改变。大量报道探讨了O 3对大豆的损害机制。然而,升高的 O 3如何影响大豆的代谢谱仍知之甚少。在这里,我们比较了经木炭过滤的空气(CF,<20 id=138>3 浓度(EO,100 ppb))下大豆叶片的代谢特征。高水平的 O 3影响三碳酸 (TCA) 循环的代谢物、活性氧值得注意的是,茉莉酸相关代谢物促进气孔闭合,并发生 125 倍的变化。此外,O 3熏蒸还改变了 TCA 循环中某些代谢物生物合成的基因表达。 ,这些发现确定了针对 O 3污染的广泛变化的代谢物,我们的结果为大豆的遗传改良以适应 O 3污染以保持稳定的产量铺平了道路。

更新日期:2021-02-11
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