Invasive Ageratina adenophora can maintain its ecological advantages over time through releasing its autotoxicity by accumulating a bacterium Bacillus cereus
文献类型： 外文期刊
作者： Wu, Ai-Ping 1 ; Bai, Zhong-Xi 1 ; Li, Jian 3 ; Liu, Hui 1 ; Chen, Fa-Lin 1 ; Zhang, Man-Yun 1 ; Wang, Yan-Hong 1 ; Balah, Mohamed Abdelaziz 5 ; Wen, Ji-Hui 1 ;
作者机构： 1.Hunan Agr Univ, Coll Resources & Environm, Ecol Dept, Hunan Prov Key Lab Rural Ecosyst Hlth Dongting Lak, Changsha 410128, Peoples R China
2.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing, Peoples R China
3.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Peoples R China
4.Zhejiang Agr & Forestry Univ, Sch Forestry & Biotechnol, Hangzhou 311300, Peoples R China
5.Desert Res Ctr, Plant Protect Dept, Ecol & Dry Lands Agr Div, 1 Mathaf El Matariya St, Cairo 11753, Egypt
6.Hunan Acad Agr Sci, Inst Plant Protect, Changsha 410125, Peoples R China
关键词： Autotoxicity; Bacterium; Detoxification; Invasion; Advantage; Release; Decline; Over time
期刊名称：HELIYON （ 影响因子：4.0； 五年影响因子：4.1 ）
ISSN：
年卷期： 2023 年 9 卷 1 期
页码：
收录情况： SCI
摘要： Plant invasive success is attributed to invaders' ecological advantages over their native neighbors. However, increasing evidence suggests that these advantages are expected to attenuate over time because of natural enemy accumulation, ecological evolution of native species and autotoxicity. We determined how an invasive Ageratina adenophora could remain its competitive advantages over time by avoiding its autotoxicity. Our results highlighted that the autotoxicity of A. adenophora in its invaded soil was reduced by some microbes. Moreover, an autotoxic alle-lochemical, 2-coumaric acid glucoside, detected in the invaded soil, demonstrated distinctly autotoxic effects on its seed germination and seedling growth. However, the autotoxic effects were greatly alleviated by a bacterium Bacillus cereus, accumulated by A. adenophora. Further-more, the allelochemical could be almost completely degraded by B. cereus within 96 h. Accordingly, we speculate that A. adenophora could aggregate B. cereus to release its autotoxicity maintaining its competitive advantages over time.
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