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A Wasp Mom’s Gift: Blankets of Bacteria

Topic

  • Microbiology
  • Bacteria
  • Pathogens & Disease
  • Anatomy & Physiology
  • Zoology

Resource Type

  • Videos
  • Animated Shorts

Level

High School — GeneralHigh School — AP/IB

Duration

00:09:10
Saved By
6 Users
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Description

This short video explores the mechanism by which a beewolf wasp passes antibiotic-producing bacteria to its offspring.

The beewolf (Philanthus triangulum) is a digger wasp that preys on honey bees. A beewolf mother stings a honey bee and deposits an egg on the bee’s paralyzed body. When the beewolf larva hatches, it can feed on the honey bee. Scientists discovered that the beewolf’s antennae are packed with bacteria called Streptomyces, which produce a variety of antibiotic substances. The beewolf spreads the antibiotic-producing bacteria on the cocoon in which the larva develops. In this way, the larva is protected from being infected by harmful bacteria and fungi.

This video is part of the series I Contain Multitudes, hosted by science journalist Ed Yong.

Key Terms

antenna, antibiotic, cocoon, digger wasp, insect, microbiome, Streptomyces, symbiosis

Primary Literature

Engl, Tobias, Johannes Kroiss, Marco Kai, Taras Y. Nechitaylo, Aleš Svatoš, and Martin Kaltenpoth. “Evolutionary stability of antibiotic protection in a defensive symbiosis.” Proceedings of the National Academy of Sciences 115, 9 (2018): E2020–E2029. https://doi.org/10.1073/pnas.1719797115.

Terms of Use

Please see the Terms of Use for information on how this resource can be used.

Accessibility Level (WCAG compliance)

PDF files meet criteria. Video files meet criteria.

Version History

Date Published 12.13.17
Date Updated 12.13.17

NGSS (2013)

HS-LS4.B

AP Biology (2019)

EVO-1, EVO-3, IST-4

IB Biology (2016)

5.2, 6.3

Vision and Change (2009)

CC1

Materials

Transcript (PDF) 270 KB

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