Synthesis of siderophores by plant-associated metallotolerant bacteria under exposure to Cd 2+

Złoch, Michał; Thiem, Dominika; Gadzała‐Kopciuch, Renata; Hrynkiewicz, Katarzyna

doi:10.1016/j.chemosphere.2016.04.130

Cited by 124 publications

(66 citation statements)

References 67 publications

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“…Our results revealed that P. fulva belongs to the group of highly siderophore‐producing strains. The coefficient of activity ( W act ) reached nearly 10 and was one of the highest values we observed in the group of Pseudomonadales in our earlier studies . Higher W act values (in the range of 30–35) were obtained only in the case of 5 strains of Streptomyces sp.…”

Section: Discussionmentioning

confidence: 43%

“…An experiment with lead‐resistant Pseudomonas aeruginosa 4EA revealed synthesis of lead‐enhanced catecholates (pyochelin and pyoverdin) in media supplemented with 0.5 mM lead nitrate . Our earlier studies revealed that among all isolated rhizosphere and endophytic bacteria associated with alder and birch growing in a heavy‐metal polluted area the most effective strains in siderophore synthesis belonged to the genus Streptomyces and were able to secrete three types of siderophores (hydroxamates, catecholates, and phenolates) under Cd 2+ stress . However, in the above experiment, increasing Cd 2+ ions concentrations in the medium stimulated Streptomycetes strains to synthesize mainly ferrioxamine B .…”

Section: Discussionmentioning

confidence: 94%

“…The sixth peak (VI) was identified as ferrioxamine E. This hydroxamate is well described in the scientific literature as a siderophore synthesized by Streptomyces bacteria . However, Essén et al also identified ferrioxamine E as the main siderophore produced by Pseudomonas stutzeri .…”

Section: Discussionmentioning

confidence: 99%

“…1359). Examples of such areas occur, e.g., at industry areas in southern Poland located near zinc smelter “Bolesław” (Cd t ∼ 15 mg kg −1 or industry regions close to Trzebinia (Cd t ∼ 43.5 mg kg −1 . However, as the soil is an extremely complex environment dependent on many abiotic and biotic factors, further in situ studies are required to understand all mechanisms occurring in natural conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The ChemStation software for LC 3D System (B.04.03) was used for acquisition and processing of the resulting data. Conditions for conducting the chromatographic separation were chosen in accordance with the publication of Złoch et al . Identification of analytes was performed at λ = 435 nm.…”

Section: Methodsmentioning

confidence: 99%

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Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

et al. 2018

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The impact of increasing Cd exposure on the quality and quantity of siderophores produced by a plant growth promoting Pseudomonas fulva strain was tested to gain insight into the degree of change. P. fulva was cultured in the increasing concentrations of Cd (0, 0.5, 1.0, 2.0 mM). The secreted siderophores were separated by HPLC and characterized by UHPLC-QTOF/MS. In the presence of 2 mM Cd synthesis of siderophores (hydroxamates, catecholates, phenolates) was mitigated compared to the treatments with lower concentrations of Cd (0.5 and 1 mM). Increased synthesis of catecholates in 0.5 and 1 mM Cd and of phenolates in 0.5-2 mM Cd was revealed compared to the variant without Cd . Out of seven different hydroxamates, the secretion of ferrioxamine E was significantly decreased in the highest Cd concentration. Two additional ferrioxamines, X2 and D2, were secreted independent of the presence or absence of Cd . Exposure to Cd change the composition of siderophores secreted by P. fulva with selective promotion of catecholates and phenolates at the expense of hydroxamates. Successful adaptation in a Cd-contaminated soil in the frame of practical applications to promote phytoremediation can be assumed.

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Section: Discussionmentioning

confidence: 43%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

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Role of Rhizospheric Microbiome in Enhancing Plant Attributes and Soil Health for Sustainable Agriculture

Sharma

Kumawat

2022

Core Microbiome

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Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

et al. 2020

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Bacteria play an important role in the calcification process of natural minerals and within organisms ( Table 1). It is Microbe-mediated mineralization is ubiquitous in nature, involving bacteria, fungi, viruses, and algae. These mineralization processes comprise calcification, silicification, and iron mineralization. The mechanisms for mineral formation include extracellular and intracellular biomineralization. The mineral precipitating capability of microbes is often harnessed for green synthesis of metal nanoparticles, which are relatively less toxic compared with those synthesized through physical or chemical methods. Microbe-mediated mineralization has important applications ranging from pollutant removal and nonreactive carriers, to other industrial and biomedical applications. Herein, the different types of microbe-mediated biomineralization that occur in nature, their mechanisms, as well as their applications are elucidated to create a backdrop for future research.

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Synthesis of siderophores by plant-associated metallotolerant bacteria under exposure to Cd 2+

Cited by 124 publications

References 67 publications

Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

Cadmium‐induced changes in the production of siderophores by a plant growth promoting strain of Pseudomonas fulva

Role of Rhizospheric Microbiome in Enhancing Plant Attributes and Soil Health for Sustainable Agriculture

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

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