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Applied and Environmental Microbiology, February 2007, p. 1362-1366, Vol. 73, No. 4
0099-2240/07/$08.00+0     doi:10.1128/AEM.01211-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Role of Host Nutrition in Symbiont Regulation: Impact of Dietary Nitrogen on Proliferation of Obligate and Facultative Bacterial Endosymbionts of the Pea Aphid Acyrthosiphon pisum{triangledown}

T. L. Wilkinson,1* R. Koga,2 and T. Fukatsu2

UCD School of Biology and Environmental Science, University College Dublin, Dublin, Ireland,1 Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan2

Received 25 May 2006/ Accepted 3 December 2006

The impact of host nutrition on symbiont regulation in the pea aphid Acyrthosiphon pisum was investigated. The population density of the obligate symbiont Buchnera aphidicola positively correlated with dietary nitrogen levels. In contrast, the population density of the facultative symbiont Serratia symbiotica increased in aphids reared on low-nitrogen diets, indicating distinct regulatory mechanisms in the same insect host.

* Corresponding author. Mailing address: UCD School of Biology and Environmental Science, University College Dublin, Belfield, Dublin 4, Ireland. Phone: 353 1 7162264. Fax: 353 1 7161152. E-mail: tom.wilkinson{at}ucd.ie.

{triangledown} Published ahead of print on 8 December 2006.

Applied and Environmental Microbiology, February 2007, p. 1362-1366, Vol. 73, No. 4
0099-2240/07/$08.00+0     doi:10.1128/AEM.01211-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Chandler, S.M, Wilkinson, T.L, Douglas, A.E (2008). Impact of plant nutrients on the relationship between a herbivorous insect and its symbiotic bacteria. Proc R Soc B 275: 565-570 [Abstract] [Full Text]  


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