A physical model system in which to investigate the interactions of microorganisms isolated from the rhizosphere

Pearce, David, Bazin, Michael and Lynch, James (1997) A physical model system in which to investigate the interactions of microorganisms isolated from the rhizosphere. Journal of Microbiological Methods, 31 (1-2). pp. 67-74. ISSN 0167-7012

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Official URL: http://dx.doi.org/10.1016/S0167-7012(97)00085-7

Abstract

A contained laboratory physical model system was developed to investigate interactions between microorganisms isolated from the rhizosphere. Key physico-chemical characteristics of the plant root system were artificially recreated. In this way, their influence on microbial population dynamics could be studied in response to induced environmental change. The growth-limiting nutrient could be supplied to a population of bacteria, by radial diffusion from a central, cylindrical ultrafiltration membrane, in the place of a plant root. The diffusion rate of glucose across the ultrafiltration membrane was calculated, and the physical model system was tested in the presence of bacteria isolated from the rhizosphere. The study showed that a physical model could be used to make reasonable predictions about the behaviour of microorganisms in soil–root systems.

Item Type: Article
Uncontrolled Keywords: Diffusion; Enterobacter cloacae; Hollow fibre; Membrane; Plant root; Rhizosphere
Subjects: C500 Microbiology
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Becky Skoyles
Date Deposited: 17 Dec 2015 12:05
Last Modified: 24 Oct 2017 11:28
URI: http://nrl.northumbria.ac.uk/id/eprint/25057

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