Variations in total hemocyte counts as induced by a nosemosis in the cabbage looper, Trichoplusia ni

The freely circulating hemocytes in the larva of the cabbage looper, Trichoplusia ni, were susceptible to infection with Nosema sp. A gradual decrease to a highly significant reduction in blood-cell numbers, accompanied by an increase of all developing stages of the infective organism in the cytopla...

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Bibliographic Details
Published inJournal of invertebrate pathology Vol. 8; no. 2; pp. 175 - 179
Main Authors Laigo, F.M., Paschke, J.D.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.06.1966
Subjects
Animals
Apicomplexa
Blood Cell Count
In Vitro Techniques
Insecta
Protozoan Infections
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Summary:The freely circulating hemocytes in the larva of the cabbage looper, Trichoplusia ni, were susceptible to infection with Nosema sp. A gradual decrease to a highly significant reduction in blood-cell numbers, accompanied by an increase of all developing stages of the infective organism in the cytoplasm of blood cells indicate that such cells are infected. Observations of fresh blood smears as well as stained smears indicate no hemocytic encapsulation and extracellular digestion of the invading pathogen. Phagocytosis was prevalent at advanced stages of infection, but this was not effective in warding off fatal infection. Intracellular digestion or retention of the pathogen was not observed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0022-2011
1096-0805
DOI:10.1016/0022-2011(66)90126-1