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大型海藻内共生真菌次生代谢产物中抑制水华蓝藻物质的分离与活性
Alternative TitleIdentification of Compounds with Allelopathy on Bloom Microalgae from the Secondary Metabolites of Endophytic Fungi Isolated from Marine Macroalgae and the Algicidal Activities
左进城; 苗凤萍; 王爱云; 胡德昌
2014
Source Publication植物科学学报
ISSN2095-0837
Volume32Issue:5Pages:509-516
Contribution Rank鲁东大学生命科学学院; 中国科学院烟台海岸带研究所
Abstract为获得能明显抑制水华蓝藻的化感物质,本研究从28株大型海藻内共生真菌中筛选出了4株菌株,其粗提物能显著抑制水华鱼腥藻(Anabaena flos-aquae)和铜绿微囊藻(Microcystis aeruginosa)的生长。对这4株真菌扩大培养后,检测了从其次生代谢产物中分离出的32种单体化合物的抑藻活性。其中,化合物sterigmatocystin、(2'E,4'E,6'E)-6-(1'-carboxyocta-2',4',6'-triene)-11,12-epoxy-9,11-dihydroxydrim-7-ene、 6,8-di-O-methylnidurufin和aversin对水华鱼腥藻的抑制率显著大于50%(P < 0.05),24 h半数有效浓度(EC_(50,24h))分别为6.865、4.302、1.824、2.319 μg/mL;化合物sterigmatocystin、indol-3-carboxaldehyde和(2'E,4'E,6'E)-6-(1'-carboxyocta-2',4',6'-triene)-11,12-epoxy-9,11-dihydroxydrim-7-ene对铜绿微囊藻的抑制率显著大于50%(P < 0.05),EC_(50,24h)分别为4.167、5.374、8.386 μg/mL。
Other AbstractTo obtain compounds with allelopathy on bloom microalgae, 28 strains of marine macroalgae-endophytic fungi were tested, and four strains in which crude extracts of the secondary metabolites showed apparent allelopathy on Anabaena flos-aquae and Microcystis aeruginosa were obtained. The four strains were cultured in 15 L of PDB culture and the algicidal activities of 32 compounds isolated from the secondary metabolites were examined. The inhibition ratios of sterigmatocystin, (2'E,4'E,6'E)-6-(1'-carboxyocta-2',4',6'-triene)-11,12-epoxy-9,11-dihydroxydrim-7-ene, 6,8-di-O-methylnidurufin and aversin on A. flos-aquae were all significantly higher than 50% (P < 0.05), and the EC_(50,24h )values were 6.865 mug/mL, 4.302 mug/mL, 1.824 mug/mL and 2.319 mug/mL, respectively. The inhibition ratios of sterigmatocystin,(2'E,4'E,6'E)-6-(1'-carboxyocta-2',4',6'-triene)-11,12-epoxy-9,11-dihydroxydrim-7-ene and indol-3-carboxaldehyde on M. aeruginosa were all significantly higher than 50% (P < 0.05), and the EC_(50,24h) values were 4.167 mug/mL, 8.386 mug/mL and 5.374 mug/mL, respectively.
Keyword内共生真菌 抑藻物质 水华鱼腥藻 铜绿微囊藻 化感作用
Department海岸带生物学与生物资源利用所重点实验室
Funding Organization国家"十二五"水专项,国家青年科学基金项目,山东省自然科学基金,鲁东大学博士基金
Indexed ByCSCD
Subtype期刊论文
Language中文
CSCD IDCSCD:5272673
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8349
Collection海岸带生物学与生物资源保护实验室
Recommended Citation
GB/T 7714
左进城,苗凤萍,王爱云,等. 大型海藻内共生真菌次生代谢产物中抑制水华蓝藻物质的分离与活性[J]. 植物科学学报,2014,32(5):509-516.
APA 左进城,苗凤萍,王爱云,&胡德昌.(2014).大型海藻内共生真菌次生代谢产物中抑制水华蓝藻物质的分离与活性.植物科学学报,32(5),509-516.
MLA 左进城,et al."大型海藻内共生真菌次生代谢产物中抑制水华蓝藻物质的分离与活性".植物科学学报 32.5(2014):509-516.
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