Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 550291
Title Influence of Competition and Predation on the Population Dynamics of Bacteria Introduced Into Soil
Author(s) Postma, J.; Veen, J.A. Van
Source In: Biotic Interactions and Soil-Borne Diseases / Beemster, A.B.R., Bollen, G.J., Gerlagh, M., Ruissen, M.A., Schippers, B., Tempel, A., Elsevier (Developments in agricultural and managed forest ecology ) - ISBN 0444887288
DOI https://doi.org/10.1016/B978-0-444-88728-3.50008-1
Department(s) Research Institute for Plant Protection
Publication type Peer reviewed book chapter
Publication year 1991
Abstract Population dynamics of Rhizobium leguminosarum biovar trifolii (R62: :Tn5) was studied in laboratory experiments after the introduction into sterilized and non-sterilized loamy sand and silt loam. Part of the sterilized soil was recolonized by adding a group of bacterial isolates. A flagellate, which was cultured on rhizobial cells, was added to sterilized as well as to recolonized sterilized soil. The rhizobial number was influenced little by the recolonization with bacteria or by the addition of flagellates alone. However, when both flagellates and bacteria were present, rhizobial populations were reduced significantly as compared to sterilized soil. This reduction was more than the sum of both effects separately. Nevertheless, populations of rhizobia were still higher than in natural soil. Competition and predation were also found to influence the percentage of rhizobia which were associated with soil particles and aggregates >50 μm, which were separated with the use of a standardized soil washing procedure.
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