Journal
JOURNAL OF INVERTEBRATE PATHOLOGY
Volume 87, Issue 1, Pages 45-50Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jip.2004.07.003
Keywords
Wolbachia; Drosophila melanogaster; endosymbiont; fitness; stress; heat; nutrition
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Insect endosymbionts often influence host nutrition but these effects have not been comprehensively investigated in Wolbachia endosymbionts that are widespread in insects. Using strains of Drosophila melanogaster with the wMel Wolbachia infection, we showed that Wolbachia did not influence adult starvation resistance. Wolbachia also had no effect on larval development time or the size of emerging adults from a low nutrition medium. While Wolbachia may influence the expression of heat shock proteins, we found that there was no effect on adult heat resistance when tested in terms of survival or virility following heat stress. The absence of nutrition or stress effects suggests that other processes maintain ivMel frequencies in natural populations of Drosophila melanogaster. (C) 2004 Elsevier Inc. All rights reserved.
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