Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil
Soil salinity and the indiscriminate use of agrochemicals has significantly reduced the productivity of the ‘Chinampas’ agroecosystem in Mexico City. Crop improvement under these stressful conditions may be achieved by soil bioremediation. In this study, we checked the effects of the organochlorine...
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MDPI AG
2021-06-01
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author | Anbu Landa-Faz Sara González-Orenga Monica Boscaiu Refugio Rodríguez-Vázquez Oscar Vicente |
author_facet | Anbu Landa-Faz Sara González-Orenga Monica Boscaiu Refugio Rodríguez-Vázquez Oscar Vicente |
author_sort | Anbu Landa-Faz |
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description | Soil salinity and the indiscriminate use of agrochemicals has significantly reduced the productivity of the ‘Chinampas’ agroecosystem in Mexico City. Crop improvement under these stressful conditions may be achieved by soil bioremediation. In this study, we checked the effects of the organochlorine pesticide endosulfan and bioremediation with <i>Penicillium crustosum</i> or a citric waste on the growth of <i>Phaseolus leptostachyus</i> plants in saline soil from the Chinampas area. Biochemical markers associated with specific stress responses were also determined after one month of growth in the different substrates. Plant growth was stimulated by bioremediation of the soil. Both biostimulants reduced the degree of stress affecting the plants, as shown by the increase in photosynthetic pigments and the reduction of proline, malondialdehyde (MDA), and H<sub>2</sub>O<sub>2</sub> contents, and the activation of antioxidant systems. However, the biostimulants appeared to mitigate oxidative stress through different mechanisms. Endosulfan contamination inhibited seed germination—which was reverted to control values in the presence of the biostimulants—and further decreased plant growth. No clear patterns of variation of biochemical stress markers were observed combining endosulfan and the biostimulants. In any case, bioremediation with <i>P. crustosum</i> and/or citric waste is recommended to improve the germination and growth of <i>P. leptostachyus</i> plants. |
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spelling | doaj.art-eadd44db8d364516bc3fbf91a7ae6f612023-11-22T00:04:09ZengMDPI AGAgronomy2073-43952021-06-01116120810.3390/agronomy11061208Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline SoilAnbu Landa-Faz0Sara González-Orenga1Monica Boscaiu2Refugio Rodríguez-Vázquez3Oscar Vicente4Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, SpainMediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, SpainMediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, SpainDepartamento de Biotecnología y Bioingeniería, CINVESTAV Zacatenco, Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Del. Gustavo A. Madero, Ciudad de México 07360, MexicoInstitute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, SpainSoil salinity and the indiscriminate use of agrochemicals has significantly reduced the productivity of the ‘Chinampas’ agroecosystem in Mexico City. Crop improvement under these stressful conditions may be achieved by soil bioremediation. In this study, we checked the effects of the organochlorine pesticide endosulfan and bioremediation with <i>Penicillium crustosum</i> or a citric waste on the growth of <i>Phaseolus leptostachyus</i> plants in saline soil from the Chinampas area. Biochemical markers associated with specific stress responses were also determined after one month of growth in the different substrates. Plant growth was stimulated by bioremediation of the soil. Both biostimulants reduced the degree of stress affecting the plants, as shown by the increase in photosynthetic pigments and the reduction of proline, malondialdehyde (MDA), and H<sub>2</sub>O<sub>2</sub> contents, and the activation of antioxidant systems. However, the biostimulants appeared to mitigate oxidative stress through different mechanisms. Endosulfan contamination inhibited seed germination—which was reverted to control values in the presence of the biostimulants—and further decreased plant growth. No clear patterns of variation of biochemical stress markers were observed combining endosulfan and the biostimulants. In any case, bioremediation with <i>P. crustosum</i> and/or citric waste is recommended to improve the germination and growth of <i>P. leptostachyus</i> plants.https://www.mdpi.com/2073-4395/11/6/1208chinampas agroecosystemorganochlorine pesticidesseed germinationsalt stressoxidative stressoxidative stress markers |
spellingShingle | Anbu Landa-Faz Sara González-Orenga Monica Boscaiu Refugio Rodríguez-Vázquez Oscar Vicente Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil Agronomy chinampas agroecosystem organochlorine pesticides seed germination salt stress oxidative stress oxidative stress markers |
title | Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil |
title_full | Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil |
title_fullStr | Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil |
title_full_unstemmed | Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil |
title_short | Effect of the Pesticide Endosulfan and Two Different Biostimulants on the Stress Responses of <i>Phaseolus leptostachyus</i> Plants Grown in a Saline Soil |
title_sort | effect of the pesticide endosulfan and two different biostimulants on the stress responses of i phaseolus leptostachyus i plants grown in a saline soil |
topic | chinampas agroecosystem organochlorine pesticides seed germination salt stress oxidative stress oxidative stress markers |
url | https://www.mdpi.com/2073-4395/11/6/1208 |
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