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Effects of fenclorim on rice physiology, gene transcription and pretilachlor detoxification ability

文献类型： 外文期刊

作者： Hu, Lifeng 1 ; Yao, Ying 1 ; Cai, Ruwen 1 ; Pan, Lang 1 ; Liu, Kailin 1 ; Bai, Lianyang 3 ;

作者机构： 1.Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Peoples R China

2.Hunan Univ Human, Collaborat Innovat Ctr Farmland Weeds Control, Loudi 417000, Peoples R China

3.Hunan Acad Agr Sci, Hunan Agr Biotechnol Res Inst, Changsha 410125, Peoples R China

关键词： Safener; Rice; Antioxidation; Metabolism; Transcriptomics

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.215； 五年影响因子：4.96 ）

ISSN： 1471-2229

年卷期： 2020 年 20 卷 1 期

页码：

收录情况： SCI

摘要： Background Fenclorim (Fen) can effectively protect rice from pretilachlor (Pre) injury, but its effects on rice have not been formally evaluated; thus, the Fen mode of action for alleviating the phytotoxicity caused by Pre in rice is not clear. This study aimed to examine the biochemical and physiological effects of Fen on rice and to determine the changes induced by Fen at the transcriptome level. Result The chlorophyll content of rice plants was significantly affected by Pre but not by Fen. The activity of oxidative stress enzymes showed that Fen did not elicit any changes in oxidative stress; however, it reduced lipid peroxidation and oxidative damage induced by Pre. Fen did not affect the uptake of Pre but did affect its persistence in rice. In a transcriptome experiment, Fen upregulated genes in a detoxification pathway. Overall, 25 genes related to detoxification were identified, including P450, GST, and GT. Moreover, qRT-PCR analysis showed that four P450 genes, CYP71Y83, CYP71K14, CYP734A2 and CYP71D55, and two GST genes, GSTU16 and GSTF5, were upregulated by Fen and/or Pre. Conclusion Our work indicates that Fen acts in antioxidative defense in addition to enhancing the metabolism of herbicides in rice.

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