Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1997 Aug;63(8):3294-6.
doi: 10.1128/aem.63.8.3294-3296.1997.

Partitioning of Symbiotic Bacteria between Generations of an Insect: a Quantitative Study of a Buchnera sp. in the Pea Aphid (Acyrthosiphon pisum) Reared at Different Temperatures

N J Humphreys, A E Douglas

Partitioning of Symbiotic Bacteria between Generations of an Insect: a Quantitative Study of a Buchnera sp. in the Pea Aphid (Acyrthosiphon pisum) Reared at Different Temperatures

N J Humphreys et al. Appl Environ Microbiol. 1997 Aug.

Abstract

The population of symbiotic Buchnera bacteria in parthenogenetic females of the pea aphid Acyrthosiphon pisum was determined by quantitative hybridization of a DNA probe (groESL) to aphid homogenates. The aphids bore 1 x 10(sup7) to 2 x 10(sup7) bacterial cells per mg (fresh weight). In teneral aphids (i.e., aphids that had moulted to adulthood but that had not initiated reproduction), >75% of the bacteria were in the embryos, and the density of bacteria in the embryos was consistently greater than that in the maternal tissues. The bacterial density in teneral aphids increased from 1.3 x 10(sup7) to 2.0 x 10(sup7) cells mg (fresh weight) of aphids(sup-1) with temperature between 15 and 25(deg)C. This variation could be attributed to a temperature-dependent increase in both the density of bacteria in the embryos and embryo content of the aphids.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. J Bacteriol. 1992 Mar;174(6):1869-74 - PubMed
    1. Biol Rev Camb Philos Soc. 1989 Nov;64(4):409-34 - PubMed
    1. CMAJ. 1987 Jul 15;137(2):109-13 - PubMed
    1. Insect Mol Biol. 1994 Nov;3(4):213-7 - PubMed
    1. Appl Environ Microbiol. 1995 Jan;61(1):278-83 - PubMed

LinkOut - more resources