Impact of host developmental age on the transcriptome of the symbiotic bacterium Buchnera aphidicola in the pea aphid (Acyrthosiphon pisum)

Appl Environ Microbiol. 2009 Nov;75(22):7294-7. doi: 10.1128/AEM.01472-09. Epub 2009 Sep 25.


Of the 617 genes from Buchnera aphidicola, the obligate bacterial symbiont of the pea aphid, 23% were differentially expressed in embryos compared to adults. Genes involved in flagellar apparatus and riboflavin synthesis exhibited particularly robust upregulation in embryos, suggesting functional differences between the symbiosis in the adult and embryo insect.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aging
  • Animals
  • Aphids / microbiology*
  • Buchnera / genetics*
  • Buchnera / metabolism*
  • Embryo, Nonmammalian / metabolism
  • Gene Expression Profiling*
  • Gene Expression Regulation, Bacterial
  • Genes, Bacterial / genetics
  • Molecular Sequence Data
  • Oligonucleotide Array Sequence Analysis
  • Reproducibility of Results
  • Symbiosis / physiology*
  • Up-Regulation