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Do Bacteria Change Their Language When They Enter the Body Through Wounds? Answers From Bedbug Experiments

Authors
  • Otti, Oliver1
  • Deines, Peter2
  • Hammerschmidt, Katrin3
  • Reinhardt, Klaus4
  • 1 Animal Population Ecology, Animal Ecology I, University of Bayreuth, Bayreuth , (Germany)
  • 2 Zoological Institute, Department of Biology, Christian Albrechts University Kiel, Kiel , (Germany)
  • 3 Institute of Microbiology, Department of Biology, Christian Albrechts University Kiel, Kiel , (Germany)
  • 4 Applied Zoology, Department of Biology, Technische Universität Dresden, Dresden , (Germany)
Type
Published Article
Journal
Frontiers for Young Minds
Publisher
Frontiers Media SA
Publication Date
Jan 28, 2019
Volume
7
Identifiers
DOI: 10.3389/frym.2019.00001
Source
Frontiers
Keywords
Disciplines
  • Biodiversity
  • Core Concept
License
Green

Abstract

Bacteria live almost everywhere on earth, even within and outside animals, including insects and ourselves. Some bacteria help us digest our food, but others do harm and cause infections and illness. If we are injured, bacteria from the outside can enter our bodies through our wounds. The body will then fight against the incoming bacteria and this fight affects our own, useful bacteria in two ways. First, the fight harms both the incoming bacteria and our own helpful bacteria. Second, because the incoming bacteria may also be bad for the useful bacteria, our own bacteria might fight against the incoming ones. To do so, they use special molecules to talk to each other—a little bit like we use words. We studied the conversation of bacteria of the bedbug because it is an animal that is wounded very often. We wanted to understand how bacterial conversation changes when new bacteria enter the animal’s body. We found that females had different species of bacteria before they were wounded compared with after they were wounded. We also found that the bacteria communicated differently after the females were wounded. Our study helps people to understand how an animal’s response to wounds and the communication of the bacteria in that animal work together.

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