Quénéhervé Patrick, Godefroid Martin, Mège P., Marie-Luce S. (2011). Diversity of meloidogyne spp. parasitizing plants in Martinique island, French West Indies. Nematropica, 41 (2), p. 191-199. ISSN 0099-5444.
Titre du document
Diversity of meloidogyne spp. parasitizing plants in Martinique island, French West Indies
Quénéhervé Patrick, Godefroid Martin, Mège P., Marie-Luce S.
Source
Nematropica, 2011,
41 (2), p. 191-199 ISSN 0099-5444
To assess the presence of root-knot nematodes, Meloidogyne spp, 96 root and soil samples were collected in 24 locations in Martinique. This study followed a previous survey that primarily focused on assessing the sanitary risk linked to the presence of root-knot nematodes on dessert bananas. The aim of the present study was to extend the Meloidogyne species survey to a wider range of crops and associated weeds as a first step in introducing efficient integrated control of root-knot nematodes in the different cropping systems in Martinique. Soil and root samples were collected from 31 host plants belonging to 15 botanical vegetable crops, weeds and fruits trees. In addition, seven soil samples were collected in natural forests. Polyacrylamide gel electrophoresis (PAGE) revealed 12 different esterase phenotypes among the 76 Meloidogyne isolates collected. Six esterase phenotypes were linked to five previously identified species (M. incognita, M. arenaria, M. enterolobii, M. exigua, M. javanica) and one species recorded for the first time in Martinique (M. paranaensis), and five esterase phenotypes belonged to five unknown species, referred to in this study as Meloidogyne sp1 to sp5. Intra-specific variability was also observed within M. arenaria populations since both malate-dehydrogenase phenotypes N1 and N3 were observed. This study confirms the high diversity of Meloidogyne in Martinique Island including species that are potentially harmful to crops.
