The allelopathic effects of aqueous extracts from Spartina alterniflora on controlling the Microcystis aeruginosa blooms

被引：61
作者：
Yuan, Ruoyu [1 ]
Li, Yue [1 ]
Li, Jihua [1 ]
Ji, Shuhua [1 ]
Wang, Sen [1 ]
Kong, Fanlong [1 ]
机构：
[1] Qingdao Univ, Coll Environm Sci & Engn, Qingdao 266071, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2020年 / 712卷
关键词：
Microcystis aeruginosa bloom; Spartina alterniflora; Allelochemicals; Microbial community structure; VOLATILE ORGANIC-COMPOUNDS; GROWTH; MECHANISM; WATER; SOIL; REMOVAL; RELEASE; MATTER; PHOTOSYNTHESIS; IDENTIFICATION;
D O I：
10.1016/j.scitotenv.2019.136332
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The Microcystis aeruginosa (M. aeruginosa) blooms and Spartina alterniflora (S. alterniflora) invasion have caused serious damage to local ecological environment. This study validated the possibility of transforming the abandoned S. afterniflora into a biological resource to inhibit M. aeruginosa blooms through allelopathy. The results showed that the inhibitory effect became stronger with the increasing S. alterniflora concentration by decreasing chlorophyll a and weakening photosynthesis when S. alterniflora aqueous extract concentration was over 0.05 g/mL. The results of CC-MS showed that Cyclohexane, Heptane, 2-Cyclohexen-1-one, Hexadecanoic acid, 2,4-Di-tert-butylphenol and Hydrocinnamic acid may be the main allelochemicals. In addition, the S. alterniflora aqueous extract had little effect on the relative abundance and diversity of microbial communities in the culture system. This study provided a novel idea of controlling the M. aeruginosa blooms using the rapidly expanding S. alterniflora. (C) 2019 Elsevier B.V. All rights reserved.
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页数：9
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