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Infection of the European chafer,Amphimallon majalis, byBacillus popilliae: Ultrastructure

Authors
Journal
Journal of Invertebrate Pathology
0022-2011
Publisher
Elsevier
Publication Date
Volume
31
Issue
1
Identifiers
DOI: 10.1016/0022-2011(78)90113-1
Keywords
  • Amphimallon Majalis
  • Larvae
  • Bacillus Popillae
  • Spores
  • Bactericidal
  • Mesenteronic Cells
  • Hemocytes
  • Exocytosis
  • Midgut

Abstract

Abstract Electron microscopical studies indicate that midgut alterations observed in larval Amphimallon majalis during Bacillus popilliae invasion were due to infection of epithelium, wound repair, and hemocytic encapsulation. Hemocytes bearing angular cytoplasmic granules formed the capsule which adhered to the basal lamina subjacent to the mesenteronic lesion. Exocytosis of hemocyte granules into bacilli-containing endocytic invaginations of plasma membranes and vacuoles was observed. These hemocytes as well as mesenteronic cells exhibited bactericidal capabilities.

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