Meloidogyne incognita
Appearance
Meloidogyne incognita | |
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Species: | M. incognita
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Binomial name | |
Meloidogyne incognita |
Meloidogyne incognita (root-knot nematode - RKN), also known as the "southern root-nematode" or "cotton root-knot nematode" is a plant-parasitic roundworm in the family Heteroderidae. This nematode is one of the four commonest species worldwide and has numerous hosts. It typically incites large, usually irregular galls on roots as a result of parasitism.
M. incognita can move along shallower temperature gradients (0.001C/cm) than any other known organism,[1] an example of thermotaxis. The response is complicated and thought to allow the nematodes to move toward an appropriate level in soil,[2] while they search for chemical cues that can guide them to specific roots.[3][4][5]
See also
- Coffee root-knot nematode
- Sodium azide - used for agricultural control of Meloidogyne incognita
References
- ^ Pline, Diez, and Dusenbery, J. Nematology, 20:605-608 (1988). Extremely sensitive thermotaxis of the nematode Meloidogyne incognita.
- ^ Dusenbery, D.B. Biological Cybernetics, 60:431-437 (1989). A simple animal can use a complex stimulus pattern to find a location,
- ^ Pline and Dusenbery. 1987. Responses of the plant-parasitic nematode Meloidogyne incognita to carbon dioxide determined by video camera-computer tracking. J. Chem. Ecol. 13 : 873-888.
- ^ Dusenbery. 1987. The theoretical range over which bacteria and nematodes locate plant roots using carbon dioxide. J. Chem. Ecol. 13 : 1617-1624.
- ^ Diez and Dusenbery. 1989. Repellent of root-knot nematodes from the exudate of host roots. J. Chem. Ecol. 15:2445-2455.
- Lamberti, Franco and Taylor, Charles Edwin (eds.) (1979) Root-knot nematodes (Meloidogyne species): systematics, biology and control Academic Press, New York, ISBN 0-12-434850-5 ;
- Diez, J. A., and Dusenbery, D. B. (1989) "Preferred temperature of Meloidogyne incognita" Journal of Nematology 21: pp. 99–104;
- McCarter, James P. et al. (2003) "Analysis and functional classification of transcripts from the nematode Meloidogyne incognita" Genome Biology 4: R26, doi:10.1186/gb-2003-4-4-r26