Fe^2＋对Rhodobacter azotoformans生长和细菌叶绿素合成的影响  

Effect of Fe^2＋ on Cell Growth and Bacteriochlorophylla Synthesis of Rhodobacter azoto f ormans

作　　者：景秀芳[1] 林志华[1] 崔小华[1] 董彦敏[1] 岳慧英[2] 杨素萍[1,2] 

机构地区：[1]山西大学生命科学,化学生物学与分子工程教育部重点实验室,山西太原030006 [2]华侨大学生物工程与技术系,福建厦门361021

出　　处：《山西大学学报（自然科学版）》2009年第A02期102-104,共3页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金（30970068）;山西省回国留学人员科研资助项目（200713）

摘　　要：用吸收光谱和薄层层析相结合的方法研究了Fe^2＋对光合细菌生长及光合色素合成的影响．结果表明：随着FeSO4浓度增加，Rhodobacter azoto formans 134K20菌体生物量增加，总细菌叶绿素含量也增加，两种主要的细菌叶绿素中，一种不受Fe^2＋浓度变化的影响；另一种受高浓度Fe^2＋调控出现430nm处的肩峰．可见，Fe^2＋可调控不产氧光合细菌的生长和细菌叶绿素的合成．The effects of Fe^2＋ on growth and photopigment biosysthesis of anoxygenic phototrophic bacteria are investigated by absorption spectrometry and thin layer chromatography. The results showed that biomass and total bacteriochlorophylla content of Rhodobacter azotoformans 134K20 increased with the increase of the Fe^2＋ concentration. One of the two main bacteriochlorophylla wasn＇t affected by the Fe^2＋ concentration and the other appeared a absorption at 430 nm under the high concentration of Fe^2＋. The result indicate that Fe^2＋ could regulate the growth of cell and the synthesis of bacteriochlorophylla of anoxygenic phototrophic bacterium.

关 键 词：光舍细菌 光合色素 细菌叶绿素 

分 类 号：Q939.105[生物学—微生物学] X703.1[环境科学与工程—环境工程]