Biodegradation of fenpropathrin by Rhodopseudomonas sp. strain PSB07‐21 cultured under three different growth modes

Abstract

This study aimed at the biodegradation of fenpropathrin by Rhodopseudomonas sp. strain PSB07‐21 cultured under different growth modes. The biomass production, cell surface hydrophobicity and fenpropathrin biodegradation efficiency of the strain PSB07‐21 cultured under the photoheterotrophic growth mode were better than that shown by the strain PSB07‐21 cultured under the photoautotrophic or the chemotrophic growth mode. Sodium dodecyl sulfate–polyacrylamide gel electrophoresis analysis using cell‐free protein extracts showed several distinct protein bands in the gels representing the strain PSB07‐21 cultured under the photoheterotrophic growth mode. The fenpropathrin enzymatic degradation was clearly affected the bacterial growth mode. Results obtained from this study should improve our knowledge regarding fenpropathrin biodegradation under field conditions. Our findings can also be used to optimize the usage of Rhodopseudomonas sp. PSB07‐21 in field applications.

Insight Into Microbial Applications for the Biodegradation of Pyrethroid Insecticides

“…Detailed metabolic pathway of fenpropathrin biodegradation through strain pyd-1 was also identified. Specific enzyme activities of pyrethroid hydrolase, 3-phenoxybenzaldehyde (PBD) dehydrogenase, 3-phenoxybenzoic acid (PBA) hydroxylase, 4-hydroxy-PBA dioxygenase, and p-hydroquinone hydroxylase have been studied in relation to pyrethroid fenpropethrin (Dehmel et al, 1995; Wang et al, 2011; Luo et al, 2019). Pseudomonas pseudoalcaligenes strain POB310 has been reported for the degradation of 3- and 4-carboxydiphenyl ethers (Dehmel et al, 1995).…”

Contaminação da água por agrotóxicos: estudo de caso do beneficiamento de batatas

“…A exposição crônica ou a bioacumulação de alguns piretróides como a detectada neste estudo, a fenpropatrina, pode provocar toxicidade neuro comportamental em mamíferos (Liu et al, 2015). Além da não recomendação do uso deste pesticida no cultivo da batata, a detecção da presença deste agrotóxico no efluente resulta em um grave problema ambiental, visto que os piretróides são extremamente tóxicos no ambiente aquático (Luo et al, 2019). A Fenpropatrina no sistema aquático dissipa-se rapidamente da fase aquosa dissolvida e liga-se ao carbono orgânico em partículas de sedimentos (Fojut;Young, 2011).…”

Enhancement of Nutrients in Poultry Excreta through Formulated Microbial Consortium along with Bio Fertilizer Microorganisms

“…During poultry excreta treatment microbes of Rhodopseudomonas sp., and Pseudomonas fluorescens present in FMC role was important because several species of Rhodopseudomonas sp., have been demonstrated to have the ability to degrade various synthetic pyrethroids, and DDVP. Luo et al, [62] reported encoding genes of 2OG-Fe(II) oxygenase enzyme of Rhodopseudomonas sp. PSB07-21 having capability of degrading synthetic pyrethroids.…”