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 reported in Central America and the
Caribbean: Costa Rica, Guatemala, Martinique. Europe: France. North America:
Mexico, United States (Hawaii). South America: Brazil, Colombia (CABICPC, 2021;
Subbotin et al., 2021; Carneiro and Cofcewicz, 2008).
Meloidogyne paranaensis was first named and described in 1996 in
the state of Paranï¿½a, Brazil by Carneiro et al. Previously, it had been
identified as a pathotype of M. incognita.
Meloidogyne paranaensis is an
A-rated pest in California, USA.
Reported on coffee in Parana State, Brazil. Considered the most destructive
nematode pest of coffee in Brazil.
Feeding site establishment and
development typical of genus.
Type Host: Coffee (Coffea arabica), maintained on tomat (Solanum
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).
Above ground, coffee plants will show different levels of general decline,
reduced growth, nutritional deficiency symptoms, with leaf chlorosis,
defoliation, and dieback.
Meloidogyne paranaensis does not produce the usual galls on the roots of
coffee; rather it produces a syndrome called ï¿½coffee corky-root diseaseï¿½
with symptoms such as splitting and cracking of the cortical root tissue,
especially on the taproot. Necrotic spots occur along the roots where the
females are embedded, and nematode feeding probably causes the death of
tissues around the giant cells (Carneiro et al., 1996; Lï¿½pez-Lima et al.,
Host Plant Resistance, Non-hosts
The nematode is easily spread and introduced on infected roots, bare root
propagative material, and anything that moves soil including containers,
tools, equipment, machinery, irrigation water, and people, Long
distance spread occurs with contaminated nursery stock.
CABI Crop Production Compendium 2021. Meloidogyne paranaensis (Parana coffee
root-knot nematode) https://www.cabi.org/cpc/datasheet/33251 Accessed 11/5/21
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.
Carneiro, R.M. and Cofcewicz, E.T., 2008. Taxonomy of coffee-parasitic
root-knot nematodes, Meloidogyne spp. In Plant-parasitic nematodes of coffee
(pp. 87-122). Springer, Dordrecht.
Chitambar, J. J., Westerdahl, B. B., and Subbotin, S. A. 2018. Plant
Parasitic Nematodes in California Agriculture. In Subbotin, S., Chitambar
J., (eds) Plant Parasitic Nematodes in Sustainable Agriculture of North
America. Sustainability in Plant and Crop Protection. Springer, Cham.
Elling, A.A. 2013. Major Emerging Problems with Minor
Meloidogyne Species. Phytopathology 103:1092-1102.
Ferraz, L.C.C.B. 2008. Plant parasitic nematodes of coffee in Brazil. In:
Plant Parasitic Nematodes of Coffee (Souza RM, Editor). New York, NY, USA:
APS Press & Springer, 225-248.
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.
Lopez-Lima, D., Sï¿½nchez-Nava, P., Carrion, G., De Los Monteros, A.E. and
Villain, L., 2015. Corky-root symptoms for coffee in central Veracruz are
linked to the root-knot nematode Meloidogyne paranaensis, a new report for
Mexico. European Journal of Plant Pathology, 141(3), pp.623-629.
Minaco, A.P.D.A., Carneiro, R.G., Kranz, W.M., Gomes, J.C., Scherer, A.,
Nakamura, K.C., Moritz, M.P. and Santiago, D.C., 2008. Reaï¿½ï¿½o de espï¿½cies de
plantas daninhas a Meloidogyne paranaensis. Nematologia Brasileira, 32(4),
Scheck, H.J. 2021. California Pest Rating Proposal for Meloidogyne
paranaensis Carneiro et al. 1996 Parana coffee root-knot nematode. CDFA,
Subbotin, S.A., Rius, J.E.P. and Castillo, P., 2021. Systematics of
Root-Knot Nematodes (Nematoda: Meloidogynidae). Brill. 857p.
Subbotin, S. A., and Burbridge, J. 2021. Report of the Parana coffee
root-knot nematode, Meloidogyne paranaensis (Tylenchida: Meloidogynidae)
from Caladium sp. in the continental United States. Journal of Nematology