Nanosilicon alters oxidative stress and defence reactions in plants: a meta-analysis, mechanism and perspective
文献类型： 外文期刊
作者： Fan, Ningke 1 ; Zhao, Chunjie 1 ; Yue, Le 1 ; Ji, Haihua 1 ; Wang, Xie 2 ; Xiao, Zhenggao 1 ; Rasmann, Sergio 3 ; Wang, Zhenyu 1 ;
作者机构： 1.Jiangnan Univ, Jiangsu Engn Lab Biomass Energy & Carbon Reduct T, Sch Environm & Civil Engn, Inst Environm Proc & Pollut Control, Wuxi 214122, Jiangsu, Peoples R China
2.Sichuan Acad Agr Sci, Inst Agr Resources & Environm, Chengdu 610066, Peoples R China
3.Univ Neuchatel, Inst Biol, CH-2000 Neuchatel, Switzerland
期刊名称：ENVIRONMENTAL SCIENCE-NANO （ 影响因子：9.473； 五年影响因子：9.35 ）
ISSN： 2051-8153
年卷期： 2022 年 9 卷 10 期
页码：
收录情况： SCI
摘要： Alleviating the adverse effects of abiotic and biotic stress factors on crop plants is essential to achieve higher productivity for satisfying the future food demands of the rapidly-growing global human population. The application of Si nanomaterials (Si NMs) could be an ecologically-sound alternative, as there is evidence that Si NMs could positively mitigate oxidative stress in plants. However, not all studies report clear positive effects of Si NM amendment, suggesting a high level of context-dependency. To explore variation in Si NM benefits on plants, we conducted a meta-analysis of 51 independent studies conducted worldwide. We found that Si NM addition overall increased antioxidant enzyme activities (16.3%), antioxidant metabolite contents (15.2%) and defence-related gene expression (178.2%), overall decreasing oxidative stress in plant by 24.0%. These effects varied depending on several factors such as application dose, application duration and application method. Moreover, we observed that Si NM-mediated effects on plant physiology could last several weeks, but this depended on the application dose of Si NMs. Therefore, we conclude that Si NMs could be further developed as an efficient and environmentally-friendly alternative to synthetic agrochemicals for plant stress mitigation.
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