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Bull Environ Contam Toxicol. 2019 Jan;102(1):115-121. doi: 10.1007/s00128-018-2486-2. Epub 2018 Nov 27.

Allelopathic Effects on Microcystis aeruginosa and Allelochemical Identification in the Cuture Solutions of Typical Artificial Floating-Bed Plants.

Zhou L1,2, Chen G1,2, Cui N1,2, Pan Q1, Song X1,2, Zou G3,4.

Author information

1
Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China.
2
Shanghai Engineering Research Centre of Low-carbon Agriculture, Shanghai, 201403, China.
3
Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China. zouguoyan@263.net.
4
Shanghai Engineering Research Centre of Low-carbon Agriculture, Shanghai, 201403, China. zouguoyan@263.net.

Abstract

Cyperus alternifolius (C. alternifolius) and Canna generalis (C. generalis) are widely used as artificial floating-bed (AFB) plants for water pollution control. This study evaluated the release of anti-cyanobacterial allelochemicals from both plants in AFB systems. A series of cyanobacterial assays using pure culture solutions and extracts of culture solutions of C. alternifolius and C. generalis demonstrated allelopathic growth inhibition of a cyanobacterium M. aeruginosa. After 45 days of incubation by the culture solutions, both final inhibitory rates of M. aeruginosa were more than 99.6% compared with that of the control groups. GC/MS analyses indicated the presence of a total of 15 kinds of compounds, including fatty acids and phenolic compounds, in both plants' culture solutions, which are are anti-cyanobacterial. These findings provide a basis to apply artificial floating-bed plants for cyanobacterial inhibition using allelopathic effects.

KEYWORDS:

Allelochemicals; Allelopathy; Canna generalis; Cyperus alternifolius; Microcystis aeruginosa

PMID:
30483838
DOI:
10.1007/s00128-018-2486-2
[Indexed for MEDLINE]

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