筛选外来入侵薇甘菊的化感物质抗性物种用于中国南方的生态恢复

Screening Allelochemical-Resistant Species of the Alien Invasive Mikania micrantha for Restoration in South China.

作者信息

Wu Ai-Ping, Li Zi-Li, He Fei-Fei, Wang Yan-Hong, Dong Ming

机构信息

Ecology Department, College of Bioscience & Biotechnology, Institute of Ecology, Hunan Agricultural University, Changsha, 410128, China.

School of Agriculture, Yunnan University, Kunming 650091, China.

出版信息

PLoS One. 2015 Jul 15;10(7):e0132967. doi: 10.1371/journal.pone.0132967. eCollection 2015.

DOI:10.1371/journal.pone.0132967

PMID:26177031

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4503634/

Abstract

To screen allelochemical-resistant species of the alien invasive weed Mikania micrantha, we studied the allelopathic inhibition effects of the leaf aqueous extract (LAE) of Mikania on seed germination and seedling growth of the 26 species native or naturalized in the invaded region in South China. Seed germination was more strongly negatively affected by LAE than seedling growth. Responses of seed germination and seed growth to LAE differed differently among the target species. LAE more strongly negatively affected seed germination, but less strongly negatively affected seedling growth, in non-legume species than in legume species. LAE more strongly negatively affected seed germination and seedling growth in native species than naturalized exotic species. Therefore, naturalized exotic non-legume seedlings are more suitable than seeds of native legume species for restoration of Mikania-invaded habitats.

摘要

为筛选外来入侵杂草薇甘菊的化感抗性物种，我们研究了薇甘菊叶片水提物（LAE）对华南入侵地区26种本土或归化物种种子萌发和幼苗生长的化感抑制作用。与幼苗生长相比，LAE对种子萌发的负面影响更强。目标物种对LAE的种子萌发和种子生长反应各不相同。与豆科植物相比，LAE对非豆科植物种子萌发的负面影响更强，但对幼苗生长的负面影响较弱。与归化外来物种相比，LAE对本土物种种子萌发和幼苗生长的负面影响更强。因此，归化外来非豆科植物幼苗比本土豆科植物种子更适合用于薇甘菊入侵生境的恢复。