Control of Microcystis aeruginosa with Galla chinensis

dc.contributor.author Nie, Jiangli
dc.contributor.author Shii, Cong
dc.contributor.author Yi, Pei
dc.contributor.author Qi, Hongli
dc.date.accessioned 2016-05-05T22:54:23Z
dc.date.available 2016-05-05T22:54:23Z
dc.date.issued 2015
dc.description.abstract Galla 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.extent 10 pages
dc.identifier.issn 0792-156X
dc.identifier.uri http://hdl.handle.net/10524/49188
dc.relation.ispartof The Israeli Journal of Aquaculture - Bamidgeh
dc.subject product of Chinese forests
dc.subject Chinese medicine
dc.subject Galla chinensis (nutgall)
dc.subject inhibitory effects
dc.subject Microcystis aeruginosa
dc.subject.lcsh Fish culture--Israel.
dc.subject.lcsh Fish culture.
dc.title Control of Microcystis aeruginosa with Galla chinensis
dc.type Article
dc.type.dcmi Text
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