Meloidogyne trifoliaphila n. sp. (Nemata: Meloidogynidae), a Parasite of Clover from Tennessee
Abstract
Meloidogyne trifoliophila n. sp. is described from white clover collected at Ames Plantation, Fayette County, Tennessee. The perineal pattern is rounded, with long, smooth striae and rounded arch, and without distinct lateral lines or perivulval striae. The female stylet is 12.6-15.5 [mu]m long, the excretory pore is level with or up to one stylet length posterior to the stylet knobs, and the vulva is subterminal. The posterior terminus is weakly protuberant. The male lateral field is composed of approximately eight repeatedly broken or forked incisures. The male stylet is 17.0-18.9 [mu]m long, the stylet knobs are rounded and sloping, gradually merging with the shaft, and the head region consists of one large annule. Second-stage juveniles are 357-400 [mu]m long, with a stylet length of 11.9-13.6 [mu]m and one head annule. The tail tapers to a slender tip. This new species is similar to M. graminicola and M. triticoryzae but differs from them in perineal pattern and lateral field morphology, and numerous morphometric characters. Key words: clover, clover root-knot nematode, Meloidogyne graminicola, Meloidogyne trifoliophila, Meloidogyne triticaryzae, nematode, new species, root-knot nematode, scanning electron microscopy, taxonomy, Tennessee, Trifolium spp.Downloads
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