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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles Volume : 15, Issue : 5, May, 2026

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2026.15(5) : 32-41
DOI : https://doi.org/10.20546/ijcmas.2026.1505.005


Functional Potential of Organophosphate-Tolerant Actinobacteria and their Diversity Revealed from Cotton Field Soils

Chavan Suresh Sudam1*, Diksha Bapusaheb Dhaware1, Laxman Navnath Chavan2, Anant. V. Despande3, Prashant. P. Dixit1 and Sarjerao Babarao Mali4
1Dr. Babasaheb Ambedkar Marathwada university subcampus, Department of Microbiology, Solapur-Aurangabad Highway, M.I.D.C. Campus, Osmanabad, Shingoli, Maharashtra 413501, India 2Vaishnavi Mahavidyalaya, wadwani Dist-Beed, Maharashtra 431144, India 3Swa.Sawarkar Mahavidyalaya, Beed, Maharashtra 431144, India 4Adarsh Mahavidyalaya Omerga, Dist- Dharashiv, India
*Corresponding author
Abstract:

The extensive use of organophosphate pesticides in cotton agroecosystems have caused long-term contamination of soil and there is a need to identify robust microbial communities which can survive and transform xenobiotic organic substances. The current research examined Natural diversity and functional potential of actinobacteria that were isolated in a study of pesticide-contaminated cotton soils in Beed district, India. Eight y-eight soil samples exhibited 73 actinobacterial isolates, giving a turn-over of 82.95%, and a great deal of spatial variability across sites. Screening at 500 ppm showed that there was an extensive adaptive resistance, with 19.18% of the isolates having a broad-spectrum resistance and 65.75% having a three-or-more pesticide resistance, showing prevalence of multi-pesticide resistance phenotypes. Nonetheless, when treated to high stress (1000 ppm), the tolerance decreased drastically as only 6.85% of the isolates were viable with all pesticides, which indicated close concentration-dependent toxicity as well as metabolic limitations. Phenotypic and biochemical characterization identified them to associate with actinobacterial taxa having elevated metabolic flexibility. Findings of molecular identification of the most effective isolate (PTA-52) showed that it has 99-99.6% similarity to Nocardiopsis, and phylogenetic analysis was observed to have a strain-level divergence, which is indicative of adaptations evolution due to big data changes pesticides. The results collectively indicate that the financially key actinobacterial community is present in cotton soils exposed to pesticides and that a small subset of the highly tolerant strains have great potential in high-load bioremediation systems.


Keywords: Organophosphate, Bioremediation, Nocardiopsis, Actinobacteria, Soil health


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How to cite this article:

Chavan Suresh Sudam, Diksha Bapusaheb Dhaware, Laxman Navnath Chavan, Anant. V. Despande, Prashant. P. Dixit and Sarjerao Babarao Mali. 2026. Functional Potential of Organophosphate-Tolerant Actinobacteria and their Diversity Revealed from Cotton Field Soils. Int.J.Curr.Microbiol.App.Sci. 15(5): 32-41 doi: https://doi.org/10.20546/ijcmas.2026.1505.005
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