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High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils
Published on: February 9, 2019
Growth and siderophores production in Alcaligenes faecalis is regulated by metal ions
1Department of Microbiology, PSGVP Mandal's ASC College, Shahada, District Nandurbar, 425405 Maharashtra India.
Abstract:
During stationary phase of growth under low stress of iron in succinic acid medium, Alcaligenes feacalis BCCM ID 2374 produced microbial iron chelators. Increase in iron concentration supported bacterial growth but suppressed siderophores production, 1 μM and 2 μM of iron was optimum for maximum siderophore yield, i.e. 354 and 360 μg/ml in untreated and deferrated medium, respectively. Threshold level of iron, which suppressed siderophores production in A. feacalis BCCM ID 2374, was 20 μM. Ten micromoles and above concentration of CuCl(2) and CoCl(2), and 20 μM of MgCl(2), MgSO(4), ZnCl(2) and ZnSO(4) severely affected siderophores production.
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