A New Root-Knot Nematode species, Meloidogyne karsseni n. sp. (Nematoda: Meloidogynidae), From Mexico and a Taxonomic Update on M. paranaensis From Guatemala.

ABSTRACT: A new root-knot nematode (RKN) species, Meloidogyne karsseni n. sp., associated with sweet pepper from Mexico, and a population of M. paranaensis from Guatemala, are described using data from morphological, biochemical (isozyme enzymes), molecular, and phylogenetic analyses. Meloidogyne karsseni n. sp. can be morphologically diagnosed using the combined features of the second-stage juveniles, viz. body length (345 to 422 μm), a conical rounded head region, a post-labial annule lacking transverse striation, a thin stylet 11 to 12 μm long, rounded to oval and backwardly sloping knobs, dorsal gland orifice (DGO) at 5.2 to 6.0 μm from the knobs, a hemizonid just above the secretory-excretory (SE) pore, a tapering tail with finely rounded terminus and one or two very weak c

SUBMITTER: Singh PR 

PROVIDER: S-EPMC10590206 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature