Meloidogyne microcephala

Meloidogyne microcephala	Contents	Rev 12/16/2024
Thailand Tobacco Root-knot Nematode	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Meloidogyne Menu	Economic Importance	Damage
	Distribution	Management
Return to Meloidogynidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

      Chromadorea
       Rhabditida
       Tylenchina
        Tylenchoidea
          Meloidogynidae
           Meloidogyninae

Meloidogyne microcephala Cliff & Hirschmann, 1984

Review general characteristics of the genus Meloidogyne.

Morphology and Anatomy:

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

Distribution:

.Type Host: tobacco (Nicotiana tabacum). In differential host tests, the host range was similar to those of Meloidogtne arenaria, Race 2; that is, hosts were tobacco, watermelon and tomato while non-hosts were peanut, pepper and cotton (Cliff and Horschmann, 1984).

North Carolina Differential Host Test

Gossypium hirsutum, Cotton (Deltapine 61)
non-host

Nicotiana tabacum
Tobacco (NC 95)
host

Capsicum annuum
Pepper (California Wonder)
non-host

Citrullus lanatus
Watermelon (Charleston Gray)
host

Arachis hypogaea
Peanut (Florunner)
non-host

Solanum lycupersicum
Tomato (Rutgers)
host

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=37, 74. The large number, and variability of chromosome number, are typical of species reproducing by obligate mitotic parthenogenesis. (Triantaphyllou and Hirschmann, 1997; Subbotin et al., 2021; Triantaphyllou, 1985).

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Damage:

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Management:

Resistance

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:

Cliff, G.M. and Hirschmann, H. 1984. Meloidogyne microcephala n.sp. (Meloidogynidae), a root-knot nematode from Thailand J. Nematology 16:183-193.

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.. and Hirschmann, H. 1997. Evidense of direct polyploidization in the mitotic parthenogenic Meloidogyne microcephala through doubling of its somatic chromosome number. Fundamental and Applied Nematology 20:385-391.