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Beewolves protect their offspring with antibiotics
Date:2/28/2010

This release is available in German.

Digger wasps of the genus Philanthus, so-called beewolves, house beneficial bacteria on their cocoons that guarantee protection against harmful microorganisms. Scientists of the Max Planck Institute for Chemical Ecology in Jena teamed up with researchers at the University of Regensburg and the Jena Leibniz Institute for Natural Product Research Hans-Knoell-Institute - and discovered that bacteria of the genus Streptomyces produce a cocktail of nine different antibiotics and thereby fend off invading pathogens. Using imaging techniques based on mass spectrometry, the antibiotics could be displayed in vivo on the cocoon's exterior surface. Moreover, it was shown that the use of different kinds of antibiotics provides an effective protection against infection with a multitude of different pathogenic microorganisms. Thus, for millions of years beewolves have been taking advantage of a principle that is known as combination prophylaxis in human medicine. (Nature Chemical Biology, Advance Online Publication, February 28, 2010)

Many insects spend a part of their life underground and are exposed to the risk of fungal or bacterial infections. This is also the case for many digger wasp species that construct underground nests. Unlike bees that use pollen and nectar as food to nurture their larvae, digger wasps hunt insects to feed their offspring. Because of the warm and humid conditions as well as the large amounts of organic material in their subterranean nest, both their food supply and their larvae are endangered by pathogens - mold and bacterial infection are a major threat and can cause larval death in many cases.

Symbiosis with bacteria increases survival rate of beewolf larvae

Beewolves, i.e. digger wasps that hunt for bees to feed their larvae, have evolved an elegant solution to the problem of fun
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Contact: Martin Kaltenpoth
mkaltenpoth@ice.mpg.de
49-364-157-1800
Max Planck Institute for Chemical Ecology
Source:Eurekalert  

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