紫色光合细菌中细菌叶绿素a叶绿醇形成的终末步骤。
Terminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria.
作者信息
Shioi Y, Sasa T
出版信息
J Bacteriol. 1984 Apr;158(1):340-3. doi: 10.1128/jb.158.1.340-343.1984.
Abstract
Four chemically different bacteriochlorophylls (Bchls) a esterified with geranylgeraniol, dihydrogeranylgeraniol, tetrahydrogeranylgeraniol, and phytol have been detected by high-pressure liquid chromatography in cell extracts from Rhodopseudomonas sphaeroides and Chromatium vinosum. Bchl a containing phytol is the principal component, and the other three Bchls a comprise about 4% of the total Bchls a in stationary-phase cells of R. sphaeroides and C. vinosum. The high levels of the minor pigments occur in the beginning of Bchl a phytol formation, indicating that they are not degradation products, but intermediates of Bchl a phytol formation.
摘要
通过高压液相色谱法，在球形红假单胞菌和嗜硫小红卵菌的细胞提取物中检测到四种化学性质不同的细菌叶绿素（Bchls）a，它们分别与香叶基香叶醇、二氢香叶基香叶醇、四氢香叶基香叶醇和叶绿醇酯化。含有叶绿醇的Bchl a是主要成分，在球形红假单胞菌和嗜硫小红卵菌的稳定期细胞中，其他三种Bchls a约占总Bchls a的4%。这些微量色素在Bchl a叶绿醇形成初期含量较高，表明它们不是降解产物，而是Bchl a叶绿醇形成的中间体。
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