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Bioremediation of petroleum contaminated soil through biosurfactant and Pseudomonas sp. SA3 amended design treatments.


ABSTRACT: Toxicity of agricultural soil due to petroleum contamination has become a serious issue in recent times. Petrol oil exhibits toxic effects in agricultural crops due to the presence of various hazardous hydrocarbons. The degradation of petroleum hydrocarbon has been widely studied by the researchers that signify the requirement of effective treatments for the detoxification of petroleum contaminated soil and their reuse for growing crops. Hence, with this intention in the present study secondary metabolites "biosurfactant" (natural surfactant) along with the potent plant growth promoting (PGP) bacterial strain Pseudomonas sp. SA3 was used in the designed treatments for growing agricultural crop. The biosurfactant produced by the strain has the emulsification capacity of 43% and surface tension reduction ability to 34.5 mN/m whereas the plant growth promoting traits demonstrates 93.46 µg/mL phosphate solubilisation ability, siderophores (iron chelating compound) production upto 69.41% units and 81.41 µg/mL indole acetic acid  (IAA) production ability. Further, the results of the design treatments signifies that treatments amended with the strain SA3 and biosurfactant is effective in the management of petroleum contaminated soil indicating treatment EX 5 (1 kg soil + 1 L water + Pseudomonas sp. SA3 + 300 mL crude biosurfactant), as an efficient treatment in increment of phytochemical constituents and 10-15% enhancement in growth parameters as compared to negative control. Hence, the developed treatments can be efficaciously used for the management of petroleum contaminated soil for agronomy.

SUBMITTER: Ambust S 

PROVIDER: S-EPMC8610309 | biostudies-literature |

REPOSITORIES: biostudies-literature

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