Nosema apis

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Nosema apis
Systematics
Department : Microsporidia
Class : Dihaplophasea
Order : Dissociodihaplophasida
Family : Nosematidae
Genre : Nosema
Type : Nosema apis
Scientific name
Nosema apis
( Zander , 1909)

Nosema apis (from ancient Greek nosos 'disease' and Latin apis 'bee') is a parasiticprotozoan from the department of microsporidia that occurs in western honey bees . It affects the epithelium of the stomach and midgut and causes nosemosis .

features

The spores of N. apis are oval, 4 to 6 µm long and 2 to 4 µm wide. The pile thread is 250 to 400 µm long.

Life cycle

All development stages of the pathogen are binuclear. The constant division of the mother cells (meronts) into two parts creates numerous daughter cells until the host cell is completely filled and decays. This leads to the release of the spores, which then attack neighboring cells (auto-infection) or are excreted with the feces.

Individual evidence

  1. ↑ Oliver Wilford Olsen: Animal Parasites: Their Life Cycles and Ecology . Courier Corporation, 1974, ISBN 9780486651262 , p. 186.
  2. ↑ Johannes Eckert: Textbook of Parasitology for Veterinary Medicine . Georg Thieme Verlag, 2008, ISBN 9783830410720 , p. 140.