Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2091647 | Journal of Microbiological Methods | 2009 | 4 Pages |
Abstract
Ion-selective microelectrodes and a novel micro-sampling technique were used to investigate the relationship in field soil between Brassica napus rhizoplane pH and bacterial density at a spatial scale approximating a microhabitat. Bacterial densities were observed to increase with decreasing pH, rhizoplane pH measurements varied by up to 1 pH unit over a distance of 1 mm and the mean pH of the rhizoplane at the root base varied by more than 1 pH unit between plants. These findings highlight the appropriateness of investigating the interactions between bacterial communities and their environment at the micro-spatial scale and the utility of the micro-sampling method.
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Authors
Paul G. Dennis, Penny R. Hirsch, Susan J. Smith, Richard G. Taylor, Eugenia Valsami-Jones, Anthony J. Miller,