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<title lang=en>Biodegradability of HCH in agricultural soils from Guadeloupe (French West Indies): identification of the lin genes involved in the HCH degradation pathway</title>
<creator>Laquitaine, L.</creator>
<creator>Durimel, A.</creator>
<creator>Alencastro, L. F., </creator>
<creator>Jean-Marius, C.</creator>
<creator>Gros, Olivier</creator>
<creator>Gaspard, S.</creator>
<contributor>Biologie de la Mangrove (BM) ; Systématique, adaptation, évolution (SAE) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - Centre National de la Recherche Scientifique (CNRS) - Université Pierre et Marie Curie - Paris 6 (UPMC) - Centre National de la Recherche Scientifique (CNRS) - Evolution Paris Seine ; Université des Antilles et de la Guyane (UAG) - Université Pierre et Marie Curie - Paris 6 (UPMC) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA) - Université Côte d'Azur (UCA) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA) - Université Côte d'Azur (UCA)</contributor>
<contributor>French Overseas Ministry (MOM)</contributor>
<contributor> Regional Council of Guadeloupe</contributor>
<contributor> Syndicat intercommunal d'alimentation en eau et d'Assainissement de la Guadeloupe (SIAEAG)</contributor>
<contributor> Direction of Agriculture (DAF)</contributor>
<description>International audience</description>
<source>ISSN: 0944-1344</source>
<source>EISSN: 1614-7499</source>
<source>Environmental Science and Pollution Research</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01545905</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01545905</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01545905</source>
<source>Environmental Science and Pollution Research, Springer Verlag, 2016, 23 (1), pp.120-127. 〈10.1007/s11356-015-5875-7〉</source>
<identifier>DOI : 10.1007/s11356-015-5875-7</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s11356-015-5875-7</relation>
<language>en</language>
<subject lang=en>Lindane degradation</subject>
<subject lang=en> Soil slurry microcosm</subject>
<subject lang=en> lin genes</subject>
<subject lang=en> Sphingobium</subject>
<subject lang=en> Soil bacteria</subject>
<subject>[SDV.BID] Life Sciences [q-bio]/Biodiversity</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Banana has been a main agricultural product in the French West Indies (Guadeloupe and Martinique) since the 1960s. This crop requires the intensive use of pesticides to prevent attacks by insect pests. Chlorinated pesticides, such as hexachlorocyclohexane (HCH), chlordecone and dieldrin, were used until the beginning of the 1990s, resulting in a generalized diffuse contamination of the soil and water in the areas of banana production, hence the need to develop solutions for cleanup of the polluted sites. The aims of this work were (i) to assess lindane degradation in soil slurry microcosms treated with lindane at 10 mg/L and (ii) to detect the catabolic genes involved in the HCH degradation pathway. The soil slurry microcosm system showed a 40 % lindane degradation efficiency at the end of a 30-day experiment. Lower lindane removal was also detected in the abiotic controls, probably caused by pesticide adsorption to soil particles. Indeed, the lindane concentration decreased from 6000 to 1330 ng/mL and from 800 to 340 ng/mL for the biotic and abiotic soils, respectively. Nevertheless, some of the genes involved in the HCH degradation pathway were amplified by polymerase chain reaction (PCR) from crude deoxyribonucleic acid (DNA) extracted from the Guadeloupe agricultural soil, suggesting that HCH degradation is probably mediated by bacteria closely related to the family Sphingomonadaceae.</description>
<date>2016-01</date>
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