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题名: Toxicity of allelochemicals released by submerged macrophytes on phytoplankton
作者: Wang, J.1; Zhu, J. Y.1; Gao, Y. N.1; Liu, B. Y.1; Liu, S. P.1; He, F.1; Wu, Z. B.1
通讯作者: Liu, BY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
关键词: Allelochemical ; cell volume ; chlorophyll a fluorescence ; esterase activity ; flow cytometry ; internal cell complexity ; membrane integrity ; phytoplankton
刊名: ALLELOPATHY JOURNAL
发表日期: 2013
卷: 31, 期:1, 页:199-209
收录类别: SCI
文章类型: Article
部门归属: [Wang, J. ; Zhu, J. Y. ; Gao, Y. N. ; Liu, B. Y. ; Liu, S. P. ; He, F. ; Wu, Z. B.] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30870221, 50808172]; Major Science and Technology Program for Water Pollution Control and Treatment of China [2012ZX07101007-005]; Foundation for Innovative Research Groups of the Natural Science Foundation of Hubei Province, China [2010CDA066]; National Science Foundation for Distinguished Young Scholars of Hubei Province, China [2010CDA093]
类目[WOS]: Agronomy
研究领域[WOS]: Agriculture
摘要: The allelopathic mechanism of submerged macrophytes was investigated on the cyanobacterium Microcystis aeruginosa and the green alga Pseudokirchneriella subcapitata. The effect of the allelochemicals pyrogallic acid (PA), gallic acid (GA), (+)-catechin (CA), caffeic acid (CFA), protocatechuic acid (PCA), nonanoic acid (NA) and cis-9-octadecenoic acid (COA) was evaluated by flow cytometry on esterase activity, membrane integrity, chlorophyll a fluorescence, cell volume and internal cell complexity. The highest sensitivity was observed for esterase activity in both test species. NA damaged the cell membrane and severely altered the internal cell complexity of both species. PA changed the esterase activity of both species and significantly decreased the fluorescence of chlorophyll a in M. aeruginosa cells (P < 0.05). Both GA and PCA inhibited the fluorescence of chlorophyll a and caused morphological changes in M. aeruginosa (P < 0.05). CFA inhibited the esterase activity, fluorescence of chlorophyll a and cell volume in M. aeruginosa at 50 and 100 mg L-1 concentrations; In P. subcapitata, the fluorescence of chlorophyll a and cell volume was inhibited at 50 mg L-1 but was stimulated at 100 mg L-1. COA changed the esterase activity. CA at 100 mg L-1 slightly inhibited the fluorescence of chlorophyll a in M. aeruginosa and stimulated the esterase activity in P. subcapitata. The responses observed for each parameter investigated were highly dependent on the specific inhibitory mechanism of each allelochemical. These allelochemicals act on multiple target sites.
英文摘要: The allelopathic mechanism of submerged macrophytes was investigated on the cyanobacterium Microcystis aeruginosa and the green alga Pseudokirchneriella subcapitata. The effect of the allelochemicals pyrogallic acid (PA), gallic acid (GA), (+)-catechin (CA), caffeic acid (CFA), protocatechuic acid (PCA), nonanoic acid (NA) and cis-9-octadecenoic acid (COA) was evaluated by flow cytometry on esterase activity, membrane integrity, chlorophyll a fluorescence, cell volume and internal cell complexity. The highest sensitivity was observed for esterase activity in both test species. NA damaged the cell membrane and severely altered the internal cell complexity of both species. PA changed the esterase activity of both species and significantly decreased the fluorescence of chlorophyll a in M. aeruginosa cells (P < 0.05). Both GA and PCA inhibited the fluorescence of chlorophyll a and caused morphological changes in M. aeruginosa (P < 0.05). CFA inhibited the esterase activity, fluorescence of chlorophyll a and cell volume in M. aeruginosa at 50 and 100 mg L-1 concentrations; In P. subcapitata, the fluorescence of chlorophyll a and cell volume was inhibited at 50 mg L-1 but was stimulated at 100 mg L-1. COA changed the esterase activity. CA at 100 mg L-1 slightly inhibited the fluorescence of chlorophyll a in M. aeruginosa and stimulated the esterase activity in P. subcapitata. The responses observed for each parameter investigated were highly dependent on the specific inhibitory mechanism of each allelochemical. These allelochemicals act on multiple target sites.
关键词[WOS]: BLUE-GREEN-ALGAE ; MYRIOPHYLLUM-SPICATUM ; FLOW-CYTOMETRY ; GROWTH-INHIBITION ; MICROCYSTIS-AERUGINOSA ; CYANOBACTERIA ; MARINE ; COPPER ; FLUORESCENCE ; POLYPHENOLS
语种: 英语
WOS记录号: WOS:000313824400015
ISSN号: 0971-4693
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19331
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

Recommended Citation:
Wang, J; Zhu, JY; Gao, YN; Liu, BY; Liu, SP; He, F; Wu, ZB.Toxicity of allelochemicals released by submerged macrophytes on phytoplankton,ALLELOPATHY JOURNAL,2013,31(1):199-209
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