Meloinema   

  

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Rev 10/14/2023

Classification Hosts
Morphology and Anatomy Life Cycle

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 Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
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Classification:

      Tylenchida
Tylenchina
Tylenchoidea
Heteroderidae
Nacobboderinae

           Meloinema Choi & Geraert, 1974

  Type species of the genus: Meloinema kerongense  Choi & Geraert, 1974

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Morphology and Anatomy:

Meloinema spp. are characterised byhaving vermiform immature females with a vulva near the anus with a bluntly rounded tail. Mature females are swollen and pear-shaped, sexually dimorphic in the position of the excretory pore, males lacking a bursa and second-stage juveniles (J2) have short bodies. The pharyngeal glands are long in both sexes and in the J2  Bert et al (2006) observed that the spermatheca in females resembled those of nematodes in the Hoplolaimidae in lacking the spherical shape with lobe-like protruding cells typical of Meloidogyne (Subbotin and Kim, 2021)..

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  • Esophageal glands in vermiform young female, male and second stage juveniles very long (50-60% of body length). 
  • Excretory pore on female anteriorly situated, half a stylet length behind basal knobs;   

      

 

Male: 

[Ref: Luc, Maggenti & Fortuner (1988).]

Body size range for the species of this genus in the database - Click:
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Distribution:

Species have been reported from Africa, Asia and North America.

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Economic Importance:

 

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Feeding:

 

 

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Hosts:

For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

 

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Management:

 

 

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References:

Bert, W., Claeys, M. & Borgonie, G. (2006). The comparative cellular architecture of the female gonoduct among Tylenchoidea (Nematoda: Tylenchina). Journal of Nematology 38, 362-375

Eroshenko, A.S. 1990. [Description of Meloinema maritima sp. n. (Nematoda, Meloidogynidae) from the Primorye Territory.] Zoologicheskii Zhurnal 69:128-130.

Luc, M., Maggenti, A.R. & Fortuner, R. (1988). A reappraisal of Tylenchina (Nemata). 9. The family Heteroderidae Filipjev & Schuurmans Stekhoven, 1941. Revue de Nematologie 11, 159-176

Subbotin, S.A. and Kim, D, 2021. Molecular characterisation and phylogenetic relationships of sedentary nematodes of the genus Meloinema Choi & Geraert, 1974 (Nematoda: Tylenchida), Nematology 23:507-515.

 

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Copyright © 1999 by Howard Ferris.
Revised: October 14, 2023.