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Description and Biology of a New Insect Parasitic Rhabditoid, Heterorhabditis Bacteriophora N. Gen., N. Sp. (Rhabditida; Heterorhabditidae N. Fam.)

Description and Biology of a New Insect Parasitic Rhabditoid, Heterorhabditis Bacteriophora N.... DESCRIPTION AND BIOLOGY OF A NEW INSECT PARASITIC RHABDITOID, HETERORHABDITIS BACTERIOPHORA N. GEN., N. SP. (RHABDITIDA; HETERORHABDITIDAE N. FAM.) BY GEORGE O. POINAR, JR. Division of Entomology and Parasitology, University of California, Berkeley, California 94720, U.S.A. The new family, Heterorhabditidae, containing the new genus and species, Heterorhabditis bac- teriophora is described. This new species of Rhabditoidea was recovered from Heliothis punctigera Hall (Noctuidae) at Brecon, South Australia. The infective stage juveniles of this nematode carry a specific bacterium in their intestines which is released after the parasites enter the body cavity of a healthy insect. The bacteria kill the insect in 48 hours, and the infective stage juveniles develop into hermaphroditic females that produce young which develop into males and females. The latter mate and produce juveniles that develop into infective stages, which leave the cadaver and search for a new host. H. bacteriophora differs from other nematodes in the Rhabditoidea by possessing a vestigial valve in the basal pharyngeal bulb, a reduced stoma, and dauer stages capable of entering the body cavity of healthy insects. Aside from members of the genus, Neoaplectana, it is the only nematode known to serve as a vector for a bacterial disease http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Description and Biology of a New Insect Parasitic Rhabditoid, Heterorhabditis Bacteriophora N. Gen., N. Sp. (Rhabditida; Heterorhabditidae N. Fam.)

Nematologica , Volume 21 (4): 463 – Jan 1, 1975

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Publisher
Brill
Copyright
© 1975 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529275X00239
Publisher site
See Article on Publisher Site

Abstract

DESCRIPTION AND BIOLOGY OF A NEW INSECT PARASITIC RHABDITOID, HETERORHABDITIS BACTERIOPHORA N. GEN., N. SP. (RHABDITIDA; HETERORHABDITIDAE N. FAM.) BY GEORGE O. POINAR, JR. Division of Entomology and Parasitology, University of California, Berkeley, California 94720, U.S.A. The new family, Heterorhabditidae, containing the new genus and species, Heterorhabditis bac- teriophora is described. This new species of Rhabditoidea was recovered from Heliothis punctigera Hall (Noctuidae) at Brecon, South Australia. The infective stage juveniles of this nematode carry a specific bacterium in their intestines which is released after the parasites enter the body cavity of a healthy insect. The bacteria kill the insect in 48 hours, and the infective stage juveniles develop into hermaphroditic females that produce young which develop into males and females. The latter mate and produce juveniles that develop into infective stages, which leave the cadaver and search for a new host. H. bacteriophora differs from other nematodes in the Rhabditoidea by possessing a vestigial valve in the basal pharyngeal bulb, a reduced stoma, and dauer stages capable of entering the body cavity of healthy insects. Aside from members of the genus, Neoaplectana, it is the only nematode known to serve as a vector for a bacterial disease

Journal

NematologicaBrill

Published: Jan 1, 1975

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