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The striking case of tryptophan provision in the cedar aphid Cinara cedri.

ABSTRACT: Buchnera aphidicola BCc has lost its symbiotic role as the tryptophan supplier to the aphid Cinara cedri. We report the presence of a plasmid in this endosymbiont that contains the trpEG genes. The remaining genes for the pathway (trpDCBA) are located on the chromosome of the secondary endosymbiont "Candidatus Serratia symbiotica." Thus, we propose that a symbiotic consortium is necessary to provide tryptophan.

SUBMITTER: Gosalbes MJ

PROVIDER: S-EPMC2519542 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature

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The striking case of tryptophan provision in the cedar aphid Cinara cedri.

Gosalbes María José MJ Lamelas Araceli A Moya Andrés A Latorre Amparo A

Journal of bacteriology 20080627 17

Buchnera aphidicola BCc has lost its symbiotic role as the tryptophan supplier to the aphid Cinara cedri. We report the presence of a plasmid in this endosymbiont that contains the trpEG genes. The remaining genes for the pathway (trpDCBA) are located on the chromosome of the secondary endosymbiont "Candidatus Serratia symbiotica." Thus, we propose that a symbiotic consortium is necessary to provide tryptophan. ...[more]

PMID: 18586942

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Project description:CEDAR

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