Identification of a New Siderophore Acinetoamonabactin Produced by a Salt‐Tolerant Bacterium <i>Acinetobacter Soli</i>

Mudhulkar, Raju; Rajapitamahuni, Soundarya; Srivastava, Sakshi; Bharadwaj, Satyavolu V. Vamsi; Boricha, Vinod P.; Mishra, Sandhya; Chatterjee, Pabitra B.

doi:10.1002/slct.201801527

Cited by 5 publications

(5 citation statements)

References 22 publications

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“…Siderophore production. Siderophore production ability was tested based on the CAS agar analytical method [ 23 ]. The bacterial suspension during logarithmic growth period was centrifuged, and then re-suspended with distilled water.…”

Section: Methodsmentioning

confidence: 99%

Biological Inoculant of Salt-Tolerant Bacteria for Plant Growth Stimulation under Different Saline Soil Conditions

Wang

Feng

2021

J. Microbiol. Biotechnol.

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Using salt-tolerant bacteria to protect plants from salt stress is a promising microbiological treatment strategy for saline–alkali soil improvement. Here, we conducted research on the growthpromoting effect of Brevibacterium frigoritolerans on wheat under salt stress, which has rarely been addressed before. The synergistic effect of B. frigoritolerans combined with representative salttolerant bacteria Bacillus velezensis and Bacillus thuringiensis to promote the development of wheat under salt stress was also further studied. Our approach involved two steps: investigation of the plant growth-promoting traits of each strain at six salt stress levels (0, 2, 4, 6, 8, and 10%); examination of the effects of the strains (single or in combination) inoculated on wheat in different salt stress conditions (0, 50, 100, 200, 300, and 400 mM). The experiment of plant growth-promoting traits indicated that among three strains, B. frigoritolerans had the most potential for promoting wheat parameters. In single-strain inoculation, B. frigoritolerans showed the best performance of plant growth promotion. Moreover, a pot experiment proved that the plant growth-promoting potential of co-inoculation with three strains on wheat is better than single-strain inoculation under salt stress condition. Up to now, this is the first report suggesting that B. frigoritolerans has the potential to promote wheat growth under salt stress, especially combined with B. velezensis and B. thuringiensis .

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Section: Methodsmentioning

confidence: 99%

Biological Inoculant of Salt-Tolerant Bacteria for Plant Growth Stimulation under Different Saline Soil Conditions

Wang

Feng

2021

J. Microbiol. Biotechnol.

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“…This repetition indicates a focused research interest in employing E. coli as a model organism for studying the synthesis and secretion of siderophores, alongside efforts to identify new siderophore compounds. Notable contributions include Mudhulkar et al research on siderophores produced by halotolerant bacteria [92] and Oliveira et al's study on siderophore synthesis by Streptococcus mutans [93]. The analysis also highlighted these keywords' significant betweenness centrality, reflecting their pivotal role in connecting various research themes within the field.…”

Section: Analysis Of Research Hotspotsmentioning

confidence: 99%

Exploring the Biological Pathways of Siderophores and Their Multidisciplinary Applications: A Comprehensive Review

Xie,

Wei,

Wan

et al. 2024

Molecules

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Siderophores are a class of small molecules renowned for their high iron binding capacity, essential for all life forms requiring iron. This article provides a detailed review of the diverse classifications, and biosynthetic pathways of siderophores, with a particular emphasis on siderophores synthesized via nonribosomal peptide synthetase (NRPS) and non-NRPS pathways. We further explore the secretion mechanisms of siderophores in microbes and plants, and their role in regulating bioavailable iron levels. Beyond biological functions, the applications of siderophores in medicine, agriculture, and environmental sciences are extensively discussed. These applications include biological pest control, disease treatment, ecological pollution remediation, and heavy metal ion removal. Through a comprehensive analysis of the chemical properties and biological activities of siderophores, this paper demonstrates their wide prospects in scientific research and practical applications, while also highlighting current research gaps and potential future directions.

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“…Among the biosynthetic enzymes for vibriobactin, the amide synthase VibH showed highly flexible substrate specificity and was capable of transferring activated dihydroxybenzoate (DHB) to diverse acceptor amines in a model of a reconstituted synthetic pathway in Escherichia coli [ 77 ]. Acinetobacter species are able to produce polyamine-based catechol siderophores that are natural analogs of vibriobactins [ 78 , 79 ]. In particular, Reitz et al identified that the strain Acinetobacter bouvetii DSM 14964 can synthesize propanochelin, butanochelin and pentanochelin ( Table 1 ).…”

Section: Precursor-directed Biosynthesismentioning

confidence: 99%

Engineering Siderophore Biosynthesis and Regulation Pathways to Increase Diversity and Availability

2023

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Siderophores are small metal chelators synthesized by numerous organisms to access iron. These secondary metabolites are ubiquitously present on Earth, and because their production represents the main strategy to assimilate iron, they play an important role in both positive and negative interactions between organisms. In addition, siderophores are used in biotechnology for diverse applications in medicine, agriculture and the environment. The generation of non-natural siderophore analogs provides a new opportunity to create new-to-nature chelating biomolecules that can offer new properties to expand applications. This review summarizes the main strategies of combinatorial biosynthesis that have been used to generate siderophore analogs. We first provide a brief overview of siderophore biosynthesis, followed by a description of the strategies, namely, precursor-directed biosynthesis, the design of synthetic or heterologous pathways and enzyme engineering, used in siderophore biosynthetic pathways to create diversity. In addition, this review highlights the engineering strategies that have been used to improve the production of siderophores by cells to facilitate their downstream utilization.

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Identification of a New Siderophore Acinetoamonabactin Produced by a Salt‐Tolerant Bacterium Acinetobacter Soli

Cited by 5 publications

References 22 publications

Biological Inoculant of Salt-Tolerant Bacteria for Plant Growth Stimulation under Different Saline Soil Conditions

Biological Inoculant of Salt-Tolerant Bacteria for Plant Growth Stimulation under Different Saline Soil Conditions

Exploring the Biological Pathways of Siderophores and Their Multidisciplinary Applications: A Comprehensive Review

Engineering Siderophore Biosynthesis and Regulation Pathways to Increase Diversity and Availability

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