The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H2O2 and O2Levels, Antioxidant Enzyme Activity and Phytohormone Levels

doi:10.3390/plants12173086

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	The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H2O2 and O2Levels, Antioxidant Enzyme Activity and Phytohormone Levels
	Wang,Yu; Zhao,Yuanzheng; Dong,Baozhu; Wang,Dong; Hao,Jianxiu; Jia,Xinyu; Zhao,Yuxi; Nian,Yin; Zhou,Hongyou
	2023
发表期刊	PLANTS-BASEL
ISSN	2223-7747
卷号	12 期号:17 页码:3086
摘要	Allelopathic interactions between plants serve as powerful tools for weed control. Despite the increasing understanding of the allelopathic mechanisms between different plant species, the inhibitory effects of B. oleracea on weed growth remain poorly understood. In this study, we conducted experiments to demonstrate that B. oleracea extract can suppress the germination of Panicum miliaceum L.varruderale Kit. seeds as well as of the roots, shoots and hypocotyl elongation of P. miliaceum seedlings. Furthermore, we observed that B. oleracea extract reduced the levels of hydrogen peroxide and superoxide anion in the roots while increasing the activities of catalase and ascorbate peroxidase. In the shoots, B. oleracea extract enhanced the activities of superoxide dismutase and peroxidase. Moreover, the use of the extract led to an increase in the content of phytohormones (indole-3-acetic acid, indole-3-acetaldehyde, methyl indole-3-acetate, N6-isoPentenyladenosine, dihydrozeatin-7-glucoside, abscisic acid and abscisic acid glucose ester) in P. miliaceum seedlings. Interestingly, the aqueous extract contained auxins and their analogs, which inhibited the germination and growth of P. miliaceum. This may contribute to the mechanism of the B. oleracea-extract-induced suppression of P. miliaceum growth.
关键词	allelopathy reactive oxygen species antioxidant enzymes phytohormones LC-MS AUXIN ESTER
DOI	10.3390/plants12173086
WOS记录号	WOS:001070097300001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75052
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Wang,Yu,Zhao,Yuanzheng,Dong,Baozhu,et al. The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H2O2 and O2Levels, Antioxidant Enzyme Activity and Phytohormone Levels[J]. PLANTS-BASEL,2023,12(17):3086.
APA	Wang,Yu.,Zhao,Yuanzheng.,Dong,Baozhu.,Wang,Dong.,Hao,Jianxiu.,...&Zhou,Hongyou.(2023).The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H2O2 and O2Levels, Antioxidant Enzyme Activity and Phytohormone Levels.PLANTS-BASEL,12(17),3086.
MLA	Wang,Yu,et al."The Aqueous Extract of Brassica oleracea L. Exerts Phytotoxicity by Modulating H2O2 and O2Levels, Antioxidant Enzyme Activity and Phytohormone Levels".PLANTS-BASEL 12.17(2023):3086.

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