Isolation and biological activity of a siderochrome from the blue-green alga, Agmenellum quadruplicatum

Date
1977
Authors
Armstrong, James Edward
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Siderochrome activity has been detected in soil, dung, (Neilands, 1973) and various marine ecosystems (Estep, et al., 1975). Blue-green algae are considered an ancient life-form and are generally accepted as the mediative agent in the early evolution of the Earth's present day oxidizing atmosphere. As such, this group of organisms would have been among the first to encounter the problem of making ferric iron available for metabolism. The purpose of these studies was to examine iron-uptake mechanisms of microalgae and in particular to test the hypothesis that microalgae have a siderochrome mediated iron transport mechanism
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