DNA-based monitoring of total bacterial community structure in environmental samples.

Abstract:

:Determining the structure of bacterial communities and their response to stimuli is key to understanding community function and the interactions that occur between micro-organisms and the environment. However, bacterial communities often comprise complex assemblages of large numbers of different bacterial populations. An approach is presented which allows bacterial community structure to be determined by fractionation of the complex mixture of total bacterial community DNA using the DNA-binding dye bisbenzimidazole which imposes G+C-dependent changes in the buoyant density of DNA. Bacterial community structure presented as percentage of total DNA vs. percentage G+C content of DNA is an indication of the relative abundance of phylogenetic groups of bacteria. Changes in the composition of a soil bacterial community in response to perturbations in the form of carbon amendment and altered water status were monitored.

journal_name

Mol Ecol

journal_title

Molecular ecology

authors

Holben WE,Harris D

doi

10.1111/j.1365-294x.1995.tb00263.x

subject

Has Abstract

pub_date

1995-10-01 00:00:00

pages

627-31

issue

5

eissn

0962-1083

issn

1365-294X

journal_volume

4

pub_type

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