home    about    browse    search    latest    help 
Login | Create Account

Persistence and spread of Salmonella enterica serovar Weltevreden in soil and on spinach plants

Arthurson , Veronica; Sessitsch, Angela and Jäderlund, Lotta (2011) Persistence and spread of Salmonella enterica serovar Weltevreden in soil and on spinach plants. FEMS Microbiology Letters, 314 (1), pp. 67-74.

Full text not available from this repository.


Several outbreaks caused by pathogenic bacteria are related to the consumption of raw produce contaminated by animal manure. The majority of these outbreaks have been linked to Salmonella spp. We examined the ability of Salmonella enterica serovar Weltevreden to persist and survive in manure and soil as well as disseminate to, and persist on, spinach roots and leaves. Significantly higher numbers of S. Weltevreden inoculated into manure and applied to soil before planting spinach were found in soil than in pot cultures, where the pathogen had been inoculated directly into soil 14 days postplanting. Moreover, the pathogen seemed to disperse from manure to spinach roots, as we observed a continuous increase in the number of contaminated replicate pot cultures throughout the evaluation period. We also found that, in some cases, S. Weltevreden present in the phyllosphere had the ability to persist for the entire evaluation period (21 days), with only slight reductions in cell numbers. The results from the present study show that S. Weltevreden is capable of persisting in soil, roots and shoots for prolonged periods, indicating the importance of strict monitoring of untreated animal manure before considering its application to agricultural land.

EPrint Type:Journal paper
Keywords:Salmonella; manure; colonization; persistence; spinach; spread
Subjects: Soil > Soil quality
Food systems > Food security, food quality and human health
Crop husbandry > Composting and manuring
Research affiliation: European Union > CORE Organic > PathOrganic
Related Links:http://onlinelibrary.wiley.com/doi/10.1111/fml.2010.314.issue-1/issuetoc
Deposited By: Hackl, Dr. Evelyn
ID Code:20357
Deposited On:14 Feb 2013 17:08
Last Modified:14 Feb 2013 17:08
Document Language:English
Refereed:Peer-reviewed and accepted

Repository Staff Only: item control page