铁载体在粗糙脉孢菌和赭曲霉孢子中铁储存中的作用。
Role of siderophores in iron storage in spores of Neurospora crassa and Aspergillus ochraceus.
作者信息
Matzanke B F, Bill E, Trautwein A X, Winkelmann G
机构信息
Institut für Biologie I, Mikrobiologie I, Universität Tübingen, Federal Republic of Germany.
出版信息
J Bacteriol. 1987 Dec;169(12):5873-6. doi: 10.1128/jb.169.12.5873-5876.1987.
Abstract
Spores of Neurospora crassa 74A are lacking in ferritinlike iron pools, as demonstrated by Mössbauer spectroscopic analysis. The cyclic hexapeptide siderophore ferricrocin constituted 47% of the total iron content in spores. After germination and growth, the ferricrocin iron pool disappeared, indicating that the metal was utilized. In spores of Aspergillus ochraceus, 74% of the total iron content was bound by ferrichrome-type siderophores. Siderophores may function as iron storage forms in fungal systems.
摘要
正如穆斯堡尔光谱分析所表明的，粗糙脉孢菌74A的孢子缺乏类铁蛋白铁池。环状六肽铁载体铁载体素占孢子中铁总含量的47%。萌发和生长后，铁载体素铁池消失，表明该金属已被利用。在赭曲霉的孢子中，铁总含量的74%与铁铬素型铁载体结合。铁载体可能在真菌系统中作为铁的储存形式发挥作用。
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