Molecular basis of plant-microbe interaction in remediating organic pollutants

Prasad, Mrinalini; Saraswat, Pooja; Gupta, Anamika; Ranjan, Rajiv

doi:10.1016/b978-0-12-819382-2.00038-7

Cited by 5 publications

(1 citation statement)

References 174 publications

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“…Additionally, plants may have limited ability to accumulate pollutants and can be highly susceptible to soil contamination levels that are too high [ 20 ]. To address this challenge, we employed bacteria capable of breaking down contaminants to prevent plants from experiencing the harmful effects of pollutants [ 21 ]. Utilizing plant–microbial strategies to enhance the phytoremediation process could prove effective, particularly in contamination cases with highly toxic and persistent organic pollutants [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Decontamination of Chlorpyrifos Residue in Soil by Using Mentha piperita (Lamiales: Lamiaceae) for Phytoremediation and Two Bacterial Strains

Aioub,

Fahmy,

Ammar

et al. 2024

Toxics

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This study utilizes Mentha piperita (MI) for the first time to investigate the uptake and translocation of chlorpyrifos (CPF; 10 µg g−1) from soil, introducing a new approach to improve the efficacy of this technique, which includes using biosurfactants (Bacillus subtilis and Pseudomonas aeruginosa) at 107 CFU/mL to degrade CPF under greenhouse conditions. Moreover, antioxidant enzymes, including superoxide dismutase (SOD) and peroxidase (Prx), and oxidative stress due to hydrogen peroxide (H2O2) and malondialdehyde (MDA) in MI roots and leaves were evaluated under CPF stress. Our results demonstrated that amending soil with MI and B. subtilis followed by P. aeruginosa significantly reduced CPF levels in the soil (p > 0.05) and enhanced CPF concentrations in MI roots and leaves after 1, 3, 7, 10, and 14 days of the experiment. Furthermore, CPF showed its longest half-life (t1/2) in soil contaminated solely with CPF, lasting 15.36 days. Conversely, its shortest half-life occurred in soil contaminated with CPF and treated with MI along with B. subtilis, lasting 4.65 days. Soil contaminated with CPF and treated with MI and P. aeruginosa showed a half-life of 7.98 days. The half-life (t1/2) of CPF-contaminated soil with MI alone was 11.41 days. A batch equilibrium technique showed that B. subtilis is better than P. aeruginosa for eliminating CPF from soil in In vitro experiments. Notably, CPF-polluted soil treated with coadministration of MI and the tested bacteria improved the activities of SOD and Prx and reduced H2O2 and MDA compared with CPF-polluted soil treated with MI alone. Our findings demonstrated that using B. subtilis and P. aeruginosa as biosurfactants to augment phytoremediation represents a commendable strategy for enhancing the remediation of CPF contamination in affected sites while reducing the existence of harmful pesticide remnants in crop plants.

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Section: Introductionmentioning

confidence: 99%