TY - JOUR
T1 - Linking rhizoplane pH and bacterial density at the microhabitat scale
AU - Dennis, PG
AU - Hirsch, PR
AU - Smith, SJ
AU - Taylor, RG
AU - Valsami-Jones, Eugenia
AU - Miller, Alexander
PY - 2009/1/1
Y1 - 2009/1/1
N2 - 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.
AB - 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.
U2 - 10.1016/j.mimet.2008.09.013
DO - 10.1016/j.mimet.2008.09.013
M3 - Article
C2 - 18926861
VL - 76
SP - 101
EP - 104
JO - Journal of Microbiological Methods
JF - Journal of Microbiological Methods
IS - 1
ER -