Preliminary study on identification of algicidal active substance from mangrove bacteria Flavobacterium sp. and its algicidal effect on red tide algae Alexandrium tamarense
- VernacularTitle:红树林细菌Flavobacterium sp.的抑藻活性物质鉴定及其对亚历山大藻抑制作用的初步研究
- Author:
Yibin WANG
;
Bijuan HE
;
Zhou ZHENG
;
Jinlai MIAO
- Publication Type:Journal Article
- Keywords:
mangrove;
flavobacterium sp.;
secondary metabolite;
Alexandrium tamarense
- From:
Chinese Journal of Marine Drugs
2000;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study on algicidal bioactive substances from mangrove bacteria and its algicidal effect on red tide algae Alexandriam tamarense.Methods A red algicidal bioactive substance in Guangxi mangrove bacteria was isolated and purified by Silica-gel Column Chromatography,and its structure was determined on the basis of UV,IR,1H NMR,13C NMR and HREIMS spectroscopic analyses and comparison with the literatures.Its algicidal affect was primarily studied in this paper.Results and Conelusion The results showed that the red algicidal bioactive substance was prodigiosin,which had an inhibitory effect on the cells growth of Alexandrium tamarense,and the inhibitory effect increased with the increase of prodigiosin concentration.The prodigiosin stimulated the production of MDA and reduced the content of sulfhydryl group.In addition,plasma membrane permeability of leaked cell solution was increased.These indicated the extinguishing mechanism: the cell membrane was damaged followed by the inhibition of the cell growth.
