Identification of Indigenous Bacterial Strains from Thai Agricultural Fields for Potential Bioremediation of Carbofuran

Acharawan Thongmee; Patamaporn Sukplang

doi:10.59796/jcst.V14N3.2024.74

Authors

Acharawan Thongmee Microbiology Unit, Faculty of Science, Rangsit University, Pathum Thani, 12000 Thailand
Patamaporn Sukplang Microbiology Unit, Faculty of Science, Rangsit University, Pathum Thani, 12000 Thailand

DOI:

https://doi.org/10.59796/jcst.V14N3.2024.74

Keywords:

carbofuran, bioremediation, biodegradation, soil bacteria, indigenous bacteria

Abstract

This study explored the bioremediation potential of indigenous soil bacteria for carbofuran-contaminated agricultural areas. Twenty soil samples from regions with a history of pesticide use in Pathum Thani and Nakhon Pathom provinces, Thailand, were collected. Five bacterial strains capable of degrading carbofuran were isolated and subjected to cell morphology and biochemical analyses. Phylogenetic analysis of the 16S rRNA gene sequences identified these strains as related to Pseudomonas and Stenotrophomonas species. High-Performance Liquid Chromatography (HPLC) analysis confirmed the complete degradation of carbofuran within 3 days, reducing its concentration from 0.05 mg/mL to below detectable limits. These bacteria could use carbofuran as their sole carbon source, demonstrating their potential for bioremediation of contaminated soils. Given their resilience and ability to thrive in natural environmental conditions, these indigenous strains are well-suited for in-situ degradation of pollutants. The findings indicate that these isolated soil bacteria present a promising method for reducing the environmental risks associated with carbofuran contamination.

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