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学科主题: Agronomy
题名: Allelopathic effects of phenolic compounds present in submerged macrophytes on Microcystis aeruginosa
作者: Wu, Z. B.1; Gao, Y. N.1; Wang, J.1; Liu, B. Y.1; Zhou, Q. H.1; Zhang, Y. Y.1
通讯作者: Wu, ZB, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
关键词: Allelopathy ; Elodea nuttallii ; Hydrilla verticillata ; Microcystis aeruginosa ; phenolic compounds ; Vallisneria spiralis
刊名: ALLELOPATHY JOURNAL
发表日期: 2009-04-01
卷: 23, 期:2, 页:403-410
收录类别: SCI
文章类型: Article
部门归属: [Wu, Z. B.; Gao, Y. N.; Wang, J.; Liu, B. Y.; Zhou, Q. H.; Zhang, Y. Y.] 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: Chinese National Distinguished Youth Science Foundation [39925007]; National Natural Science Foundation, China [30870221]; China High-Tech Program [2002AA601021]; China Postdoctoral Science Foundation [20080431013]
类目[WOS]: Agronomy
研究领域[WOS]: Agriculture
摘要: In laboratory studies, the allelopathic effects of 3 (Hydrocharitaceae family) submerged macrophytes (Elodea nuttallii (Planch) St. John, Hydrilla verticillata (L.f.) Royle and Vallisneria spiralis L.) were investigated on two strains of Microcystis aeruginosa. Both aqueous methanol extracts and exudates of three macrophytes inhibited the growth of both strains of Microcystis aeruginosa, After 3-days culture, E nuttallii, H. verticillata and V. spiralis excreted 0.8, 0.3 and 1.0% of total phenolic compounds (TPC), respectively, into the surrounding water. After removing phenolic compounds by polyvinylpolypyrrolidone (PVPP)), the plant exudates showed very weak activity. The inhibitory rates of exudates of E. nuttallii, H. verticillata and V. spiralis, against non-toxic M. aeruginosa were decreased by 35.7, 43.4 and 59.1% respectively. Thus 3 submerged macrophytes released the phenolic compounds into the surrounding water, to inhibit the growth of M. aeruginosa. This information may help us in understanding the mechanism of allelopathy in aquatic ecosystems and to control the algal bloom in eutrophic water bodies.
英文摘要: In laboratory studies, the allelopathic effects of 3 (Hydrocharitaceae family) submerged macrophytes (Elodea nuttallii (Planch) St. John, Hydrilla verticillata (L.f.) Royle and Vallisneria spiralis L.) were investigated on two strains of Microcystis aeruginosa. Both aqueous methanol extracts and exudates of three macrophytes inhibited the growth of both strains of Microcystis aeruginosa, After 3-days culture, E nuttallii, H. verticillata and V. spiralis excreted 0.8, 0.3 and 1.0% of total phenolic compounds (TPC), respectively, into the surrounding water. After removing phenolic compounds by polyvinylpolypyrrolidone (PVPP)), the plant exudates showed very weak activity. The inhibitory rates of exudates of E. nuttallii, H. verticillata and V. spiralis, against non-toxic M. aeruginosa were decreased by 35.7, 43.4 and 59.1% respectively. Thus 3 submerged macrophytes released the phenolic compounds into the surrounding water, to inhibit the growth of M. aeruginosa. This information may help us in understanding the mechanism of allelopathy in aquatic ecosystems and to control the algal bloom in eutrophic water bodies.
关键词[WOS]: CERATOPHYLLUM-DEMERSUM ; PHYTOPLANKTON ; CYANOBACTERIA ; INHIBITION ; EXTRACTS ; GROWTH
语种: 英语
WOS记录号: WOS:000265033200016
ISSN号: 0971-4693
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7798
Appears in Collections:中科院水生所知识产出(2009年前)_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:
Wu, Z. B.; Gao, Y. N.; Wang, J.; Liu, B. Y.; Zhou, Q. H.; Zhang, Y. Y..Allelopathic effects of phenolic compounds present in submerged macrophytes on Microcystis aeruginosa,ALLELOPATHY JOURNAL,2009,23(2):403-410
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