writer：Wang, S. S., Y. P. You, Y. H. Han, P. Xiang, W. X. Zhang, Z. H. Zhou, D. L. Chen, and M. Li*
keywords：Pseudomonas sp.; siderophore; pyoverdine; iron deficiency; remediation; nutrient acquisition
source：期刊
specific source：Fresenius Environmental Bulletin
Issue time：2016年

Iron(Fe) is an essential micronutrient for the growth of all living organisms. However, Fe availability in soil is limited due to its existing status as Fe oxides/hydroxides. Microbial siderophore production is a well-known strategy to make soil Fe available and thus promote Fe acquisition. A new isolate Pseudomonas sp. strain 4–05, with high ability of siderophore production, was isolated and studied. By using classical analytical methods, three types of siderophores belonging to pyoverdine (PVD), a subgroup of carboxylates, were detected in the medium. Results also showed that low ferrous (Fe^II) resulted in up-regulation of PVD production, indicating a great potential of siderophores produced by Pseudomonas sp. strain 4–05 in Fe^II release in the soils. Our data provided new opportunity to apply Pseudomonas sp. strain 4–05 in promotion of plant growth and aid heavy metal remediation by phytobial approach.