Title: Meloidogyne spp. from preserved areas of Atlantic Forest in the State of Rio de Janeiro, Brazil.
Abstract: A survey for the presence of root-knot nematodes (RKN), Meloidogyne spp., was conducted in six areas of Atlantic Forest with the vegetation types montane forest or restinga. A total of 360 samples, each composed of 2.5 L of soil and roots, were taken from the rizosphere of trees, palms, shrubs and herbaceous species. In order to detect RKN in the samples, bioassays were carried out using tomato as indicators for a period of 75 to 90 days. RKN were isolated from 21 samples collected in the montane forest, from which 23 monospecific isolates were obtained. These isolates were identified on the basis of esterase isozyme phenotypes and morphology of females, males and second-stage juveniles. Twelve isolates were identified as M. javanica, six as M. exigua, two as M. incognita, one as M. arenaria, one as M. mayaguensis, and one remained unidentified. This work highlights the diversity of RKN in the montane forest, while our failure in recovering isolates from the restinga suggests that this vegetation type may not be conducive to Meloidogyne, or at least to those species found in the montane forest.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 22
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