This is the first report about the application of Penicillium crustosum isolated from Citrus sinensis peel for endosulfan biodegradation and improvement of soil characteristics of a salty agricultural soil contamined with endosulfan; getting a degradation of 93 ± 4.7%, after one month of treatment. Metabolites production was also evaluated, finding that sulphate endosulfan and mono alcohol endosulfan were the main compounds produced for that reason an oxidative pathway is suggest. Degradation was enhanced by the biological surface active agent produced by the fungus during soil mycoremediation, where a DST up to 17 ± 0.58 mN m-1, was determined, being the first time that the in situ production for this kind of application was studies. Additionally, an improvement in soil quality (reduction of clay and salinity, and an increase of soluble phosphorus, carbon content and organic matter) was observed during the mycoremediation process. The phytotoxicity of the pesticide on Phaseolus leptostachyus crop was evaluated; in the soil without the fungus the pesticide translocated into the crop, presenting a negative effect in germination index, root length and weight, aerial weight and proline content. This contrasted with the crop develop in the soil treated with P. crustosum, which had better agronomic characteristics. In general, was possible appreciated that the addition of P. crustosum, present a lot of benefits for agricultural applications.

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This is a list of supplementary files associated with this preprint. Click to download.
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Posted 03 Dec, 2020
Posted 03 Dec, 2020
This is the first report about the application of Penicillium crustosum isolated from Citrus sinensis peel for endosulfan biodegradation and improvement of soil characteristics of a salty agricultural soil contamined with endosulfan; getting a degradation of 93 ± 4.7%, after one month of treatment. Metabolites production was also evaluated, finding that sulphate endosulfan and mono alcohol endosulfan were the main compounds produced for that reason an oxidative pathway is suggest. Degradation was enhanced by the biological surface active agent produced by the fungus during soil mycoremediation, where a DST up to 17 ± 0.58 mN m-1, was determined, being the first time that the in situ production for this kind of application was studies. Additionally, an improvement in soil quality (reduction of clay and salinity, and an increase of soluble phosphorus, carbon content and organic matter) was observed during the mycoremediation process. The phytotoxicity of the pesticide on Phaseolus leptostachyus crop was evaluated; in the soil without the fungus the pesticide translocated into the crop, presenting a negative effect in germination index, root length and weight, aerial weight and proline content. This contrasted with the crop develop in the soil treated with P. crustosum, which had better agronomic characteristics. In general, was possible appreciated that the addition of P. crustosum, present a lot of benefits for agricultural applications.

Figure 1

Figure 2

Figure 3
This is a list of supplementary files associated with this preprint. Click to download.
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