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United States Department of Agriculture

Agricultural Research Service

Research Project: Management Strategies for Plant-Parasitic Nematodes: Cover Crops, Amendments, and Internal Molecular Targets

Location: Nematology Laboratory

Title: Reproduction, physiology and biochemistry

item Perry, Roland -
item Wright, Denis -
item Chitwood, David

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: July 29, 2013
Publication Date: October 17, 2013
Citation: Perry, R.N., Wright, D.J., Chitwood, D.J. 2013. Reproduction, physiology and biochemistry. In: Perry, R.N., Moens, M., editors. Plant Nematology. 2nd edition. Wallingford, UK:CABI Publishing. p. 219-245.

Technical Abstract: This chapter summarizes fundamental knowledge and recent discoveries about the reproduction, physiology and biochemistry of plant-parasitic nematodes. Various types of reproduction are reviewed, including sexual reproduction and mitotic and meiotic parthenogenesis. Although much is known about the physiology and biochemistry of the musculature and nervous system in animal-parasitic nematodes and the microbivorous species Caenorhabditis elegans, information on these systems in plant-parasitic nematodes is confined almost completely to morphological details. The biosynthesis and catabolism of a large number of classes of compounds are reviewed, including amino acids, nucleic acids, lipids, carbohydrates and others. Mechanisms involved in the survival strategies of some nematodes exposed to cold environments include the accumulation of trehalose; other survival strategies involve the formation of morphologically and biochemically unique developmental stages, such as dauer larvae. The complex hatching mechanisms of phytoparasitic nematodes and their frequent dependency on host or other environmental signals often maximizes the survival and infection of these important agricultural pests.

Last Modified: 8/31/2015
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