Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
For over 20 years, M. paranaensis was
mis-identified as M. incognita until morphological and
molecular analyses established the new species (Carneiro et al., 1996).
Brazil. One of 17 species of Meloidogyne reported on coffee.
M. paranaensis is currently only reported in Brazil and Guatemala.
Reported on coffee in Paran State, Brazil. Considered the most destructive
nematode pest of coffee in Brazil.
Feeding site establishment and
development typical of genus.
Its main economic host is
coffee, where it is considered as one of the most destructive root-knot
In differential host tests, tobacco, watermelon, and tomato were good
hosts, whereas cotton, pepper, and peanut were nonhosts (Carneiro et al., 1996).
Hosts include tobacco, watermelon, tomato, soybean, and weeds.
Nonhosts include cotton, pepper, peanut, oats, corn, and a number of grasses.
Mitotic parthenogenesis; 3n chromosome number 50-52.
In coffee, M. paranaensis does not cause typical root-knot nematode galls.
Instead, the infection results in cracked cortical tissue on the taproot and
necrotic spots along the roots, together with non-specific above-ground symptoms
including chlorosis, leaf drop or plant death (Elling, 2013; Humphreys-Pereira
et al., 2014).
Host Plant Resistance, Non-hosts
Carneiro, R.M.G.D., Carneiro, R.G., Abrantes, I.M.O., Santos, M.S.N.A.,
Alemeida, M.R.A. 1996. Meloidogyne paranaensis n. sp. (Nemata:
Meloidogynidae), a root-knot nematode parasitizing coffee in Brazil. J.
Elling, A.A. 2013. Major Emerging Problems with Minor
Meloidogyne Species. Phytopathology 103:1092-1102.
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 nematodeÃ¯Â¿Â½.. Nematology 16:643-661.