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Applied and Environmental Soil ScienceVolume 2011 2011, Article ID 836271, 7 pages

Research Article

Uppsala Biocenter, Department of Microbiology, Swedish University of Agricultural Sciences, P. O. Box 7025, 750 07 Uppsala, Sweden

Health and Environment Department, AIT Austrian Institute of Technology GmbH, 2444 Seibersdorf, Austria

Received 2 September 2010; Accepted 18 October 2010

Academic Editor: Rodrigo Studart Corrêa

Copyright © 2011 Lotta Jäderlund et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

There are indications that the more frequent use of untreated organic residues for fertilization results in increased risk of contamination with human pathogens. Here, we evaluate the ability of two different strains of Campylobacter jejuni to persist in manure and soil as well as spread to spinach plants. It was revealed that different strategies for inoculation of C. jejuni contribute to the persistence of the bacterium in soil, roots, and shoots. Upon inoculation of the bacteria into manure prior to soil application, the amount of C. jejuni subsequently recovered in soil was higher than that from treatments involving the addition of C. jejuni cells to the soil after plant emergence. Irrespective of the bacterial inoculation dose and strategy employed, the C. jejuni content in soil remained relatively constant, whereas the majority of C. jejuni cells applied to spinach leaves could be recovered during the whole evaluation period of 21 days.





Autor: Lotta Jäderlund, Angela Sessitsch, and Veronica Arthurson

Fuente: https://www.hindawi.com/



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