Soil type and growing conditions influence uptake and translocation of organochlorine (chlordecone) by cucurbitaceae species

Clostre Florence, Letourmy Philippe, Turpin Baptiste, Carles Céline, Lesueur Jannoyer Magalie. 2014. Soil type and growing conditions influence uptake and translocation of organochlorine (chlordecone) by cucurbitaceae species. Water, Air and Soil Pollution, 225 (ID 2153), 11 p.

https://doi.org/10.1007/s11270-014-2153-0

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Quartile : Q2, Sujet : WATER RESOURCES / Quartile : Q3, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q3, Sujet : METEOROLOGY & ATMOSPHERIC SCIENCES

Résumé : Chlordecone (CLD), an organochlorine insecticide, and other persistent organic pollutants continue to contaminate the environment worldwide and have adverse effects on human health through food exposure. Cucurbitaceae take up weathered hydrophobic pollutants from the soil and translocate them to their shoots. As Cucurbitaceae are an important part of the diet in the French West Indies, they are among the main contributors to total dietary intake of CLD. We analyzed the contamination by CLDs (CLD and 5b-hydroCLD) of four cucurbits grown in the field and/or in the greenhouse. Different physiological (crop species) and environmental (soil type, growth conditions) variables were shown to influence uptake of the pollutant from the soil by the crop. Cucurbita species (zucchini and pumpkin) were more contaminated than Cucumis sativus (cucumber), and Sechium edule (christophine or chayote) translocated CLDs to fruits very poorly compared with cucumber and pumpkin. Greenhouse conditions and non-allophanic (nitisols and ferralsols) soils favored plant contamination more than field conditions and allophanic soils (andosols).

Mots-clés Agrovoc : type de sol, chlordécone, sol pollué, absorption, composé organohalogène, contamination chimique, Sechium edule, Cucumis sativus, Cucurbita, Cucurbitaceae

Mots-clés géographiques Agrovoc : Martinique, France

Classification Agris : P33 - Chimie et physique du sol
F01 - Culture des plantes
F60 - Physiologie et biochimie végétale
H02 - Pesticides
P02 - Pollution

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

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