Meloidogyne izalcoensis

  

Contents

  

Rev 10/24/2023

El Salvador Coffee Root-knot Nematode Classification Hosts
Morphology and Anatomy Life Cycle
Return to Meloidogyne Menu Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Meloidogyninae

           Meloidogyne izalcoensis Carneiro, Almeida, Gomes & Hernandez, 2005

a coffee root-knot nematode

Review general characteristics of the genus Meloidogyne.

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Morphology and Anatomy:

 

  Female: 
   
   
   
   

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Second-stage juvenile
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Distribution:

Described from El Salvador. Also reported in Brazil, Asia and Africa.

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Economic Importance:

Reported on coffee in El Salvador (Carneiro et al., 2005). One of at least 17 species of Meloidogyne reported on coffee.

 

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Feeding:

Sedentary endoparasite.

Feeding site establishment and development typical of genus.

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Hosts:

Type Host: coffee (Coffea arabica).

For an extensive host range list for this species, click

 

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level 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).

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Damage:

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).

 

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Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click

 

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References:

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.

 

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Copyright © 1999 by Howard Ferris.
Revised: October 24, 2023.