Article
A carbon dioxide avoidance behavior is integrated with responses to ambient oxygen and food in Caenorhabditis elegans.
Proceedings of the National Academy of Sciences of the United States of America - 10 Jun 2008
Bretscher Andrew Jonathan, Busch Karl Emanuel, de Bono Mario
Abstract excerpt
Homeostasis of internal carbon dioxide (CO2) and oxygen (O2) levels is fundamental to all animals. Here we examine the CO2 response of the nematode Caenorhabditis elegans. This species inhabits rotting material, which typically has a broad CO2 concentration range. We show that well fed C. elegans avoid CO2 levels above 0.5%. Animals can respond to both absolute CO2 concentrations and changes in CO2 levels within...
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