Rev 07/02/2024
a coffee root-knot nematode
Review general characteristics of the genus Meloidogyne.
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
Second-stage juvenile
Described from El Salvador. Also reported in Brazil, Asia and Africa.
Reported on coffee in El Salvador (Carneiro et al., 2005). One of at least 17 species of Meloidogyne reported on coffee.
Sedentary endoparasite.
Feeding site establishment and development typical of genus.
Type Host: coffee (Coffea arabica).
Ecophysiological Parameters:
Chromosome number 2n=44-48. The large number, and variability of chromosome number, are typical of species reproducing by obligate mitotic parthenogenesis. (Carneira et al., 2005; Subbotin et al., 2021; Triantaphyllou, 1985).
Meloidogyne izalcoensis induces round galls in coffee roots with egg masses outside the galls, in cotrast to M. exigua which induces round galls with egg masses within the galls (Humphreys-Pereira et al., 2014).
Host Plant Resistance, Non-hosts and Crop Rotation alternatives:
Carneiro, R. M.; Almeida, M. R. A.; Gomes, A. C. M.; Hernandez, A 2005. Meloidogyne izalcoensis n. sp. (Nematoda: Meloidogynidae), a root-knot nematode parasitising coffee in El Salvador. Nematology 7:819-832.
Humphreys-Pereira, D.A., Flores-Chavez, L., Gomez, M., Salazar, L. Gomez-Alpizar, L.E., Elling, A.A. 2014. Meloidogyne lopezi n.sp. (Nematode: Meloidogynidae, a new root-knot nematode. Nematology 16:643-661.
Subbotin, S.A. Palomares-Rius, J.E., Castillo, P. 2021. Systematics of Root-knot Nematodes (Nematoda: Meloidogynidae). Nematology Monographs and Perspectives Vol 14: D.J. Hunt and R.N. Perry (eds) Brill, Leiden, The Netherlands 857p.
Triantaphyllou, A.C. 1985. Gametogenesis and the chromosomes of Meloidogune nataliei: not typical of other root-knot nematodes. J. Nematology 17:1-5.
Triantaphyllou, A.C. 1985. Cytogenetics, cytotaxonomy and phylogeny of root-knot nematodes. In Sasser, J.N. & Carter, C.C. (eds) An Advanced Treatiswe on Meloidogyne.Vol 1. Biology and Control.N.C. State Universty Graphics, Raleigh, N.C. USA.