Control of Microcystis aeruginosa with Galla chinensis

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dc.contributor.authorNie, Jiangli
dc.contributor.authorShii, Cong
dc.contributor.authorYi, Pei
dc.contributor.authorQi, Hongli
dc.date.accessioned2016-05-05T22:54:23Z
dc.date.available2016-05-05T22:54:23Z
dc.date.issued2015
dc.description.abstractGalla chinensis (nutgall), used in traditional Chinese medicine, is a product extracted from nutgall trees in Chinese forests. In this study, Microcystis aeruginosa, a cyanobacterium, was exposed to different concentrations of nutgall extract obtained from Galla chinensis. With increased exposure concentration, and time, the cell density of M. aeruginosa was significantly reduced. After 72 h of exposure, the chlorophyll a content of M. aeruginosa significantly decreased; superoxide dismutase (SOD) activity increased at a low nutgall concentration but decreased at higher concentrations. Cellular ultrastructure was observed by electron microscopy. With increased nutgall concentrations, M. aeruginosa cell walls became wrinkled, collapsed, and ruptured. The photosynthetic thylakoid lamellae were fractured and dispersed, fewer phycobilisomes attached to the photosynthetic thylakoid membrane and were dispersed into the cytoplasm, and the number of lipid particles and cyanophycin granules increased. A large void appeared in the nuclear area and most of the algal cells died. In conclusion, these observations indicate that Galla chinensis has a significant allelopathic effect, and can effectively inhibit the growth of M. aeruginosa
dc.format.extent10 pages
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/49188
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectproduct of Chinese forests
dc.subjectChinese medicine
dc.subjectGalla chinensis (nutgall)
dc.subjectinhibitory effects
dc.subjectMicrocystis aeruginosa
dc.subject.lcshFish culture--Israel.
dc.subject.lcshFish culture.
dc.titleControl of Microcystis aeruginosa with Galla chinensis
dc.typeArticle
dc.type.dcmiText

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Volume 67, 2015