NDLI: Pathological Changes in Mermithid Nematode Infected Stictochironomus polystictus (Kieffer) (Diptera, Chironomidae, Chironominae)

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Pathological Changes in Mermithid Nematode Infected Stictochironomus polystictus (Kieffer) (Diptera, Chironomidae, Chironominae)

Content Provider	Springer Nature Link
Author	Bhattacharya, Goutam Mazumdar, Abhijit Hazra, Niladri
Copyright Year	2013
Abstract	Mermithid nematodes cause morphological and sexual anomalies in the pupae and adults of Stictochironomus polystictus (Kieffer). The parasite-induced changes resulted in the development of three types of intersexes. Structural alterations of adult males were variation of antennal length, appearance of antenna and number of flagellomeres, VIIIth abdominal segment, genitalia and associated appendages while in pupae, the length of antennal sheath and genital sac. However, the midge larvae infected with nematodes did not show any abnormality in morphological features. These entomopathogenic worms infecting male chironomids can feminize them and induce them to adopt a female behavior and return to water. So the worms apparently benefit from behavioral changes of the infected host, thereby reaching their abode where new hosts for its juveniles may be encountered. Since parasitized insects are usually castrated by worms before the beginning of the morphological changes, the behavioral alterations do not make additional fitness to the host.
Starting Page	153
Ending Page	157
Page Count	5
File Format	PDF
ISSN	03735893
Journal	Proceedings of the Zoological Society
Volume Number	67
Issue Number	2
e-ISSN	09746919
Language	English
Publisher	Springer India
Publisher Date	2013-10-11
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mermithid nematode Chironomidae Diptera Parasitism Pathological changes Castration Life Sciences Zoology Animal Anatomy Morphology Histology Animal Genetics and Genomics Biodiversity Conservation Biology/Ecology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Genetics Aquatic Science Immunology Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Endocrinology Insect Science

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