Abstracts
Résumé
Pythium diclinum isolé pour la première fois des eaux marocaines, possède l’aptitude de produire plusieurs métabolites volatils qui ont des propriétés très diverses. Commençons par le 4-hydroxybenzaldéhyde qui est impliqué dans la pathogenèse de plusieurs autres microorganismes et le tridécane qui est un polluant. D’autres composés détectés sont des odoriférants tels le cyclotétradécane, l’éthyl-2-hexanol et le benzaldéhyde, ce qui suggère une éventuelle contribution des Oomycètes aux problèmes d’odeurs et de goût dans les eaux potables. Cette étude a montré également que les Pythium sont des agents pathogènes pour plusieurs cultures par la production des enzymes et des toxines.Elles peuvent également produire des composés bénéfiques, notamment l’acide myristique et le phényléthanol utilisés particulièrement en cosmétique, dans les industries pharmaceutique et agro-alimentaire.
Mots-clés :
- Pythium diclinum,
- composés volatils,
- retenue du barrage,
- pollution
Abstract
Pythium diclinum, isolated for the first time from Moroccan waters, produces several volatile metabolites with very diverse properties including, for example, 4-hydroxybenzaldehyde which is involved in the pathogenesis of several other micro-organisms, and tridecane which is a pollutant. Other detected compounds include the odoriferous molecules such as cyclotetradecane, 2 ethylhexanol and benzaldehyde, the presence of which suggests a possible contribution of Oomycetes to odour and taste problems in drinking waters. This study also showed that Pythium species are pathogens for several crops, owing to their production of enzymes and toxins. They are also able to produce beneficial compounds, such as myristic acid and phenylethanol, which are used particularly in the cosmetic, pharmaceutical and agro-alimentary industries.
Keywords:
- Pythium diclinum,
- volatile compounds,
- pollution,
- dam reservoir
Appendices
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