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Allodiplogaster sudhausi

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Species of roundworm

Allodiplogaster sudhausi
Adult hermaphrodite
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Nematoda
Class: Chromadorea
Order: Rhabditida
Family: Diplogastridae
Genus: Allodiplogaster
Species: A. sudhausi
Binomial name
Allodiplogaster sudhausi
(Von Lieven, 2008)

Allodiplogaster sudhausi is a free-living nematode species in the Diplogastridae family. It was described in 2008 as Koerneria sudhausi, before being moved to the genus Allodiplogaster in 2014. A. sudhausi is omnivorous. It predates on other nematodes, but can be cultured on Escherichia coli OP50 bacterium on agar.

Mouth dimorphism

Like many other Diplogastridae, such as Pristionchus pacificus, A. sudhausi displays phenotypic plasticity, with a polyphenism in its adult mouth-form that leads to formation of one of two distinct stomas (mouth openings) of different dimensions. The two morphs that differ in stoma dimension are termed stenostomatous (narrow-mouthed) and eurystomatous (wide-mouthed).

Cannibalism

A. sudhausi has displayed cannibalistic traits, with differences in behaviour observed between the stenostomatous and eurystomatous morphs.

Biocontrol

A. sudhausi is a potential biological control agent. It has been shown to feed on juveniles and eggs of the plant-pathogenic root-knot nematode Meloidogyne javanica in vitro, and introducing A. sudhausi to M. javanica-inoculated soil also reduced tomato root galling.

References

  1. ^ von Lieven, A.F. (2008). "Koerneria sudhausi n. sp. (Nematoda: Diplogastridae); a hermaphroditic diplogastrid with an egg shell formed by zygote and uterine components". Nematology. 10 (1): 27–45. doi:10.1163/156854108783360087.
  2. Kanzaki, N.; Ragsdale, E. J.; Giblin-Davis, R. M. (2014). "Revision of the paraphyletic genus Koerneria Meyl, 1960 and resurrection of two other genera of Diplogastridae (Nematoda)". ZooKeys (442): 17–30. doi:10.3897/zookeys.442.7459. PMC 4205494. PMID 25349487.
  3. Yeates, G.W. (1969). "Predation by Mononchoides potohikus (nematode: Diplogasteridae) in laboratory culture". Nematologica. 15 (1): 3–9. doi:10.1163/187529269X00029.
  4. Susoy, V.; Ragsdale, E. J.; Kanzaki, N.; Sommer, R.J. (2015). "Rapid diversification associated with a macroevolutionary pulse of developmental plasticity". eLife. 4 (4): 1–39. doi:10.7554/eLife.05463. PMC 4357287. PMID 25650739.
  5. Bar-Eyal, M.; Sharon, E.; Spiegel, Y.; Oka, Y. (2008). "Laboratory studies on the biocontrol potential of the predatory nematode Koerneria sudhausi (Nematoda: Diplogastridae)". Nematology. 10 (5): 633–637. doi:10.1163/156854108785787271.
Taxon identifiers
Allodiplogaster sudhausi
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