Siderophores: an alternative bioremediation strategy?

Rošková, Zuzana; Škarohlíd, Radek; Honetschlägerová, Lenka

doi:10.1016/j.scitotenv.2022.153144

Cited by 78 publications

(34 citation statements)

References 190 publications

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“…Siderophores are molecules that perform sequestration on low-molecular weight irons (500–1000 Da) and link with Fe 3+ ions to be transported to the cell and secreted in response to low Fe 3+ availability [ 44 ]. Siderophores are classified as: phenolate, catecholate, hydroxamate, and carboxylate; some have a group mix (mixed types) [ 45 ]. Siderophore production has been demonstrated by Streptomyces strains that produce hydroxamate-type siderophores known as deferoxamine [ 20 ].…”

Section: Main Actinomycete Antagonistic Mechanisms To Phytopathogenic...mentioning

confidence: 99%

Actinomycete Potential as Biocontrol Agent of Phytopathogenic Fungi: Mechanisms, Source, and Applications

Torres-Rodríguez¹,

Pérez

Quiñones-Aguilar³

et al. 2022

Plants

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Synthetic fungicides have been the main control of phytopathogenic fungi. However, they cause harm to humans, animals, and the environment, as well as generating resistance in phytopathogenic fungi. In the last few decades, the use of microorganisms as biocontrol agents of phytopathogenic fungi has been an alternative to synthetic fungicide application. Actinomycetes isolated from terrestrial, marine, wetland, saline, and endophyte environments have been used for phytopathogenic fungus biocontrol. At present, there is a need for searching new secondary compounds and metabolites of different isolation sources of actinomycetes; however, little information is available on those isolated from other environments as biocontrol agents in agriculture. Therefore, the objective of this review is to compare the antifungal activity and the main mechanisms of action in actinomycetes isolated from different environments and to describe recent achievements of their application in agriculture. Although actinomycetes have potential as biocontrol agents of phytopathogenic fungi, few studies of actinomycetes are available of those from marine, saline, and wetland environments, which have equal or greater potential as biocontrol agents than isolates of actinomycetes from terrestrial environments.

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Section: Main Actinomycete Antagonistic Mechanisms To Phytopathogenic...mentioning

confidence: 99%

Actinomycete Potential as Biocontrol Agent of Phytopathogenic Fungi: Mechanisms, Source, and Applications

Torres-Rodríguez¹,

Pérez

Quiñones-Aguilar³

et al. 2022

Plants

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“…They have attracted recently increasing attention because of their potential role in environmental bioremediation, PGPB and biocontrol (Roskova et al 2022). S. lincolnensis strain SZ03 produced siderophores and showed high antifungal activity against R. solani.…”

Section: Discussionmentioning

confidence: 99%

Formulation of biofungicides based on Streptomyces lincolnensis strain SZ03 spores and efficacy against R. solani damping-off of tomato seedlings

Zamoum¹,

Allali²,

Benadjila

et al. 2022

Preprint

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This work aimed to explore an antagonistic actinobacterial strain isolated from roots of Ziziphus lotus in bioformulation processes and the biocontrol of Rizoctonia solani damping-off of tomato seedlings. The strain Streptomyces lincolnensis SZ03 was investigated for the principal in vitro biocontrol mechanisms and then formulated in three different biofungicides Wettable Talcum Powder (WTP), Sodium-Alginate Propagules (SAP) and Clay Sodium-Alginate Propagules (CAP). Compared to a marketed control products (Serenade® and Acil 060FS®), the formulated biofungicides were investigated against the R. solani damping-off of tomato cv. Aïcha seedlings. The strain S. lincolnensis SZ03 produced chitinases, cellulases, β-1,3-glucanases, cyanhydric acid and siderophores and it showed strong antagonistic effect on the mycelial growth of R. solani. Bioautographic and HPLC analysis revealed the production of a single antifungal compound. The biofungicide WTP showed an attractive biocontrol effect by reducing significantly the disease severity index (DSI) compared to untreated seeds. No significant differences were obtained compared to the chemical treatment with Acil 060FS®. The viability of spores and biocontrol efficacy of the WTP were confirmed after one year storage. S. lincolnensis strain SZ03 has never been reported in the biocontrol of phytopathogenic fungal diseases and it open up very attractive prospects in the fields of biocontrol and crop improvement.

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“…The production of siderophores is also underlined by the authors as one of the action mechanisms against these species. Roskova et al ( 2022 ) studied the use of siderophores as a bioremediation tool. Although the main role of siderophores is to bind iron, they can also chelate other heavy metals.…”

Section: Discussionmentioning

confidence: 99%

Characterization of siderophores from Escherichia coli strains through genome mining tools: an antiSMASH study

Çavaş

Kirkiz

2022

AMB Expr

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Although urinary tract infections (UTIs) affect many people, they are usually a disease observed in women. UTIs happen when exogenous and endogenous bacteria enter the urinary tract and colonize there. Cystitis and pyelonephritis occur when bacteria infect the bladder and the kidneys, respectively. UTIs become much serious if the bacteria causing the infection are antibiotic resistant. Since the pathogenic microorganisms have been adopted to current antibiotics via genetic variations, UTIs have become an even more severe health problem. Therefore, there is a great need for the discovery of novel antibiotics. Genome mining of nonpathogenic and pathogenic Escherichia coli strains for investigating secondary metabolites were conducted by the antiSMASH analysis. When the resulting secondary metabolites were examined, it was found that some of the siderophores are effective in UTIs. In conclusion, since the siderophore production in E. coli is directly related to UTIs, these molecules can be a good target for development of future pharmaceutical approaches and compounds. Siderophores can also be used in industrial studies due to their higher chelating affinity for iron.

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Siderophores: an alternative bioremediation strategy?

Cited by 78 publications

References 190 publications

Actinomycete Potential as Biocontrol Agent of Phytopathogenic Fungi: Mechanisms, Source, and Applications

Actinomycete Potential as Biocontrol Agent of Phytopathogenic Fungi: Mechanisms, Source, and Applications

Formulation of biofungicides based on Streptomyces lincolnensis strain SZ03 spores and efficacy against R. solani damping-off of tomato seedlings

Characterization of siderophores from Escherichia coli strains through genome mining tools: an antiSMASH study

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