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Updated: Jun 13, 2026

Qualitative and Quantitative Analysis of Siderophore Production from Pseudomonas aeruginosa
Published on: March 15, 2024
Paracoccus sphaerophysae sp. nov., a siderophore-producing, endophytic bacterium isolated from root nodules of
Zhen-Shan Deng1,2, Long-Fei Zhao2, Lin Xu2
1College of Life Sciences, Yan-an University, Yan-an, Shaanxi 716000, PR China.
Abstract:
An aerobic, brown-pigmented, non-spore-forming, endophytic bacterium, designated strain Zy-3(T), was isolated from root nodules of Sphaerophysa salsula, a native leguminous herb belonging to the family Leguminosae growing in north-western China. Cells of strain Zy-3(T) were non-motile, Gram-negative rods. Strain Zy-3(T) produced siderophores and showed antifungal activity. Phylogenetic analysis of the 16S rRNA gene sequence indicated that the closest relative of this organism was Paracoccus halophilus HN-182(T) (96.6 % sequence similarity). On the basis of genotype, fatty acid patterns and physiological characteristics, a novel species Paracoccus sphaerophysae sp. nov. is proposed, with Zy-3(T) (=ACCC 05413(T) =HAMBI 3106(T)) as the type strain.
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