PMID: 9549100Jan 1, 1997Paper

Aspergillosis in German cockroach Blattella germanica (L.) (Blattoidea: Blattellidae)

Mycopathologia
V Kulshrestha, S C Pathak

Abstract

Natural infection of Aspergillus flavus was observed in adults of Blattella germanica. Though the adult insects exhibited no external symptoms, they became hypoactive and later died. The dead and experimentally infected insects repeatedly yielded Aspergillus flavus in culture on Czapek's medium. Direct microscopic observation of the tissues of infected insects revealed fungal material. The blood films stained with Giemsa stain showed granulocytes (GRs) engulfing fungal hyphae. A remarkable increase in GR and plasmatocyte (PL) counts occurred in differential haemocyte counts (DHCs) of the infected insects. Two main types of immunological responses of the insect noticed were phagocytosis and encapsulation. DHC showed maximum involvement of GRs and PLs in immune mechanism.

Citations

Jan 21, 2000·FEMS Immunology and Medical Microbiology·G CotterK Kavanagh
Jul 4, 2006·Current Opinion in Microbiology·Beth Burgwyn Fuchs, Eleftherios Mylonakis
Feb 28, 2006·Revista iberoamericana de micología·Jiujiang YuJoan W Bennett

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