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紫外辐射对铜绿微囊藻中类菌孢素氨基酸(MAAs)的诱导效应 被引量:4

The Inductive Effect of Ultraviolet Radiation on Mycosporine-like Amino Acids(MAAs) in Microcystis aeruginosa
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摘要 用8w紫外灯,距离藻10cm,以5min/d、10min/d、20min/d连续照射6d的间断处理和连续照射1h、1.5h,2h、3h、6h、12h的连续处理两种方式处理铜绿微囊藻,测得水溶性色素提取液在200~400nm间的吸收光谱与对照组相比较,没有产生新的吸收峰,说明MAAs的产生不需要紫外线的诱导。同时随着紫外辐射剂量的增加,MAAs的含量先增加,当达到一定的辐射剂量之后,MAAs的含量随着紫外辐射剂量的增加而减小。 The culture of Microcystis aeruginosa were subjected to artificial UVR using a 8w ultraviolet lamp at a distance of 10cm in two time methods: respectively 5min/d, 10min/d, 20min/d in 6 days; respectively l h, 1. 5h, 2h, 3h, 6h, 12h at one time. The absorption spectra of methanolic extract of algae culture before and after UVR treatment were compared. The results showed that : ( 1 ) The induction of UVR was not necessary for the synthesis of MAAs; (2) The content of MAAs in Microcystis aeruginosa increased at first and then declined with the augment of the dose of UVR.
出处 《氨基酸和生物资源》 CAS 2008年第1期25-28,共4页 Amino Acids & Biotic Resources
基金 武汉大学大学生业余科研基金资助项目
关键词 铜绿微囊藻 类菌孢素氨基酸(MAAs) 紫外辐射(UVR) 诱导效应 Microcystis aeruginosa mycosporine -like amino acids (MAAs) ultraviolet radiation (UVR) inductive effect
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