Anescherichia colibioassay of individual siderophores in soil
- 1 June 1988
- journal article
- siderophore production-and-activity
- Published by Taylor & Francis in Journal of Plant Nutrition
- Vol. 11 (6) , 915-924
- https://doi.org/10.1080/01904168809363856
Abstract
A bioassay system using mutant strains of Escherichia coli K12 was developed which can detect four different types of siderophores. These types are: ferrichrome and its analogs; enterochelin; coprogen, rhodotorulic acid, and ferrioxamines A, B, D1, and G; and a group of unidentified chelators which forms a part of E. coli's high affinity iron transport system. The amount of the four siderophore types in concentrated water extracts of bulk and rhizosphere soil from a field sample was estimated using this bioassay.Keywords
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