In vitro screening and in silico prediction of antifungal metabolites from rhizobacterium Achromobacter kerstersii JKP9

Archives of Microbiology
Karuppiah VijayThangavel Kavitha

Abstract

The main objective of this study was to identify the antifungal metabolites from Achromobacter kerstersii JKP9, a rhizosphere bacterium isolated from tomato cultivations, inhibiting the melanin biosynthetic pathways in vascular wilt pathogen Fusarium oxysporum f. sp. lycopersici (Fol). To achieve this objective, all the rhizobacterial morphotypes were screened for plant-growth-promoting and antagonistic activities. Ethyl acetate extract of Achromobacter kerstersii JKP9 was purified in HPLC and predicted for antifungals in GC-MS equipped with Wiley library. After identification, molecular docking of useful ligands with modeled Short-chain Dehydrogenase/ Reductase (SDR) of Fol (Locus: FOXG_00472). Results were indicated that the potential strain Achromobacter kerstersii JKP9 exclusively secreted five pyrrole analogs notable for their antifungal role with no extracellular antifungal enzyme production as seen in other rhizobacterial isolates. In silico docking studies identified, Pyrrolo[1, 2-a]pyrazine-1,4-dione, hexahydro- as effective for SDR in Fol. From these results, we conclude that bacterial pyrroles can be used as an effective fungicide to control Fusarium wilt in tomatoes. In the future, these pyrrole derivatives can dire...Continue Reading

References

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Citations

Oct 14, 2021·Chemistry & Biodiversity·Camilla A S ValençaSona Jain

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Datasets Mentioned

BETA
MN857688

Methods Mentioned

BETA
PCR

Software Mentioned

MEGA X
MEGA
NBLAST

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An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

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