Effect of zinc on morphology and ultrastructure of Pseudomonas stutzeri RS34.

Bhagat, Renu; Srivastava, Sheela

doi:10.2323/jgam.40.265

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…In such cells, EDA which mediate intracellular accumulation of the metal were also observed. Similar results were obtained in Pseudomonas stutzeri RS34 exposed to Zn 2+ (Bhagat and Srivastava, 1994 ). Changes in cell morphology in response to exposure to heavy metals has been reported in case of extremophiles Acidocella, Acidiphillium , and cyanobacterium, Microcoleus chthonoplastes that show greater excretion of EPS in response to exposure to heavy metals like Cd 2+ , Cu 2+ , Ni 2+ , Pb 2+ , and Zn 2+ (Chakravarty et al, 2007 ; Diestra et al, 2007 ; Chakravarty and Banerjee, 2008 ).…”

Section: Discussionsupporting

confidence: 84%

Players over the Surface: Unraveling the Role of Exopolysaccharides in Zinc Biosorption by Fluorescent Pseudomonas Strain Psd

et al. 2017

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Fluorescent Pseudomonas strain Psd is a soil isolate, possessing multiple plant growth promoting (PGP) properties and biocontrol potential. In addition, the strain also possesses high Zn2+ biosorption capability. In this study, we have investigated the role exopolysaccharides (EPS) play in Zn2+ biosorption. We have identified that alginates are the prime components contributing to Zn2+ biosorption. Deletion of the alg8 gene, which codes for a sub-unit of alginate polymerase, led to a significant reduction in EPS production by the organism. We have also demonstrated that the increased alginate production in response to Zn2+ exposure leads to improved biofilm formation by the strain. In the alg8 deletion mutant, however, biofilm formation was severely compromised. Further, we have studied the functional implications of Zn2+ biosorption by Pseudomonas strain Psd by demonstrating the effect on the PGP and biocontrol potential of the strain.

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Section: Discussionsupporting

confidence: 84%

Players over the Surface: Unraveling the Role of Exopolysaccharides in Zinc Biosorption by Fluorescent Pseudomonas Strain Psd

et al. 2017

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“…stutzeri RS34 is a zinc-resistant strain isolated from an industrially polluted soil in New Delhi, India (34). This strain efficiently accumulates large amounts of zinc on its outer membrane through morphological and ultrastructural changes (36). Its zinc resistance mechanism is still unknown and does not resemble any known mechanisms (70).…”

Section: Biodegradation and Useful Properties For Biotechnological Apmentioning

confidence: 99%

Biology of Pseudomonas stutzeri

Lalucat

Bennasar

Bosch

et al. 2006

Microbiol Mol Biol Rev

552

418

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SUMMARY Pseudomonas stutzeri is a nonfluorescent denitrifying bacterium widely distributed in the environment, and it has also been isolated as an opportunistic pathogen from humans. Over the past 15 years, much progress has been made in elucidating the taxonomy of this diverse taxonomical group, demonstrating the clonality of its populations. The species has received much attention because of its particular metabolic properties: it has been proposed as a model organism for denitrification studies; many strains have natural transformation properties, making it relevant for study of the transfer of genes in the environment; several strains are able to fix dinitrogen; and others participate in the degradation of pollutants or interact with toxic metals. This review considers the history of the discovery, nomenclatural changes, and early studies, together with the relevant biological and ecological properties, of P. stutzeri.

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Bioaccumulation of Zinc from Industrial Effluent by Pseudomonas stutzeri RS34

Bhagat

Srivastava

1995

Environmental Biotechnology

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Effect of zinc on morphology and ultrastructure of Pseudomonas stutzeri RS34.

Cited by 7 publications

References 11 publications

Players over the Surface: Unraveling the Role of Exopolysaccharides in Zinc Biosorption by Fluorescent Pseudomonas Strain Psd

Players over the Surface: Unraveling the Role of Exopolysaccharides in Zinc Biosorption by Fluorescent Pseudomonas Strain Psd

Biology of Pseudomonas stutzeri

Bioaccumulation of Zinc from Industrial Effluent by Pseudomonas stutzeri RS34

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