Linking rhizoplane pH and bacterial density at the microhabitat scale.
J Microbiol Methods
; 76(1): 101-4, 2009 Jan.
Article
em En
| MEDLINE
| ID: mdl-18926861
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Microbiologia do Solo
/
Bactérias
/
Técnicas Bacteriológicas
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Ecossistema
/
Raízes de Plantas
Tipo de estudo:
Evaluation_studies
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article