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Bee Parasites: Don't Lose Your Flagellum
1ETH Zürich, Institute of Integrative Biology (IBZ), Universitätsstrasse 16, CH-8092 Zürich, Switzerland.
Current Biology : CB
|October 23, 2019
Summary
Bees utilize nectar in their honey crop to defend against infections. This nectar physically removes parasite flagella, preventing the parasites from infecting the bee host.
Area of Science:
- Zoology
- Insect Behavior
- Immunology
Background:
- Bees (Hymenoptera: Apoidea) are susceptible to various pathogens and parasites.
- The honey crop serves as a temporary storage organ for nectar before regurgitation.
Purpose of the Study:
- To investigate the protective mechanisms employed by bees against infections.
- To elucidate the role of nectar accumulation in the honey crop in parasite defense.
Main Methods:
- Microscopic examination of parasites after passage through the bee's honey crop.
- Analysis of nectar composition and its interaction with parasite structures.
Main Results:
- Parasites passing through the nectar-filled honey crop experienced flagellar removal.
- Flagellar removal significantly impaired the parasites' ability to infect the bee host.
Conclusions:
- Nectar accumulation in the honey crop provides a physical defense against parasitic infection.
- The honey crop acts as a crucial component of the bee's innate immune system.
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