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作 者:王宏鹏[1,2,3] 楼坚[1,2,3] 陈丽春[1,2,3] 李音[1,2,3] 班兆军[1,2,3] 黄俊[1,2,3]
机构地区:[1]浙江科技学院生物与化学工程学院 [2]浙江省农产品化学与生物加工技术重点实验室 [3]浙江省农业生物资源生化制造协同创新中心,杭州310023
出 处:《天然产物研究与开发》2017年第5期783-786,共4页Natural Product Research and Development
基 金:浙江省农业生物资源生化制造协同创新中心开放基金项目(2016KF0025;2016KF0003;2016KF0007);浙江省科技计划项目(2016C37078)
摘 要:利用多种色谱分离技术手段对采自空气的芽孢杆菌HZ16的发酵液成分进行研究,从中分离得到8个环肽类化合物,经波谱分别鉴定为Cordycedipeptide A(1)、(2E/Z,5Z)-2-[(4-methoxyphenyl)methylene]-5-(2-methylpropylidene)-3,6-piperazinedione(2)、Cyclo(Tyr-Pro)(3)、Cyclo(Pro-Val)(4)、Cyclo(Thr-Leu)(5)、Cyclo(Pro-Thr)(6)、Cyclo(Dehydroala-Leu)(7)和Cyclo(4-OH-Pro-Leu)(8)。这8个化合物均为首次报道由芽孢杆菌中获得,同时发现其中的化合物1、2、3和8具有显著的杀死卤虫幼虫的细胞毒活性,它们的4 h卤虫致死率分别为96.3%、89.2%、96.8%和99.5%。To study the chemical constituents from Bacillus HZ16. The compounds were isolated and purified by means of chromatographic techniques and their structures were identified on the basis of spectral features. 8cyclic dipeptides, named Cordycedipeptide A ( 1 ), (2E/Z,SZ) -2- [ (4-methoxyphenyl) methylene ] -5- ( 2-methylpropylidene ) -3,6-piperazinedione ( 2 ), Cyelo ( Tyr-Pro ) ( 3 ), Cyclo (Pro-Val) ( 4 ), Cyclo (Thr-Leu) ( 5 ), Cyclo (Pro-Thr) ( 6 ), Cyclo ( Dehydroala-Leu) (7) and Cyelo(4-OH-Pro-Leu) (8) ,were isolated from the organic extract of fermentation broths of Bacillus HZ16. These 8 compounds wereisolated from Bacillus sp. for the first time and eompouds 1,2,3 and 8 showed significant cytotoxic activity against the brine shrimp larvae,the mortality rate in 4 h were 96.3% ,89.2% ,96.8% and 99. 5% , respectively.
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