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Título

Differences in feeding sites induced by root-knot nematodes, Meloidogyne spp., in chickpea

AutorVovlas, Nicola; Rapoport, Hava F. ; Jiménez-Díaz, Rafael M. ; Castillo, Pablo
Palabras claveBrassica napus var. oleifera
Cicer arietinum
Food legumes
Histopathology
Vicia faba
Fecha de publicaciónabr-2005
EditorAmerican Phytopathological Society
SeriePhytopathology 95(4): 368-375 (2005)
ResumenRoot-knot nematodes (Meloidogyne spp.) are sedentary, obligate endoparasites in plants, where they induce specialized feeding sites. The feeding sites act as strong metabolic sinks to which photosynthates are mobilized. The histopathological modifications in the nematode-induced feeding sites of artificially inoculated chickpea cv. UC 27 were qualitatively and quantitatively compared using five isolates of M. artiellia and one isolate each of M. arenaria, M. incognita, and M. javanica. All Meloidogyne isolates infected chickpea plants, but root gall thickening was significantly less for M. artiellia isolates than for the other Meloidogyne species. Nevertheless, neither the number of giant cells in the feeding site (averaging four to six) nor the area of individual giant cells was influenced by nematode species or isolate. However, the number of nuclei per giant cell was significantly smaller, and the maximum diameters of nuclei and nucleoli were significantly greater, in giant cells induced by M. artiellia isolates than in those induced by M. arenaria, M. incognita, or M. javanica. In a second experiment, M. artiellia induced giant cells in faba bean and rapeseed also contained a small number of large nuclei.
Descripción8 pages, 5 figures.-- PMID: 18943038 [PubMed].-- Available Open Access at the publisher site.
Versión del editorhttp://dx.doi.org/10.1094/PHYTO-95-0368
URIhttp://hdl.handle.net/10261/7611
DOI10.1094/PHYTO-95-0368
ISSN0031-949X
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