Rhizosphere Effect on Survival of Escherichia Coli O157:H7 and Salmonella Enterica Serovar Typhimurium in Manure-Amended Soil during Cabbage (Brassica Oleracea) Cultivation under Tropical Field Conditions in Sub-Saharan Africa

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dc.contributor.authorOngeng, Duncan
dc.contributor.authorMuyanja, Charles
dc.contributor.authorRyckeboer, Jaak
dc.contributor.authorGeeraerd, Annemie H.
dc.contributor.authorSpringael, Dirk
dc.date.accessioned2022-09-06T15:47:37Z
dc.date.available2022-09-06T15:47:37Z
dc.date.issued2011
dc.description.abstractThe effect of cabbage (Brassica oleracea) rhizosphere on survival of Escherichia coli O157:H7 and Salmonella Typhimurium in manure-amended soils under tropical field conditions was investigated in the Central Agro-Ecological Zone of Uganda. Three-week old cabbage seedlings were transplanted and cultivated for 120 days on manure-amended soil inoculated with 4 or 7 log CFU/g non-virulent E. coli O157:H7 and S. Typhimurium. Cabbage rhizosphere did not affect survival of the 4 log CFU/g inocula in manure-amended soil and the two enteric bacteria were not detected on/in cabbage leaves at harvest. The 7 log CFU/g E. coli O157:H7 and S. Typhimurium survived in bulk soil for a maximum of 80 and 96 days, respectively, but the organisms remained culturable in cabbage rhizosphere up to the time of harvest. At 7 log CFU/g inoculum, E. coli O157:H7 and S. Typhimurium contamination on cabbage leaves occurred throughout the cultivation period. Leaf surface sterilisation with 1% AgNO3 indicated that the organisms were present superficially and in protected locations on the leaves. These results demonstrate that under tropical field conditions, cabbage rhizosphere enhances the persistence of E. coli O157:H7 and S. Typhimurium in manure-amended soil at high inoculum density and is associated with long-term contamination of the leaves.en_US
dc.identifier.citationOngeng, D., Muyanja, C., Ryckeboer, J., Geeraerd, A. H., & Springael, D. (2011). Rhizosphere effect on survival of Escherichia coli O157: H7 and Salmonella enterica serovar Typhimurium in manure-amended soil during cabbage (Brassica oleracea) cultivation under tropical field conditions in Sub-Saharan Africa. International Journal of Food Microbiology, 149(2), 133-142.https://doi.org/10.1016/j.ijfoodmicro.2011.06.009en_US
dc.identifier.issn0168-1605
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/4584
dc.language.isoenen_US
dc.publisherInternational Journal of Food Microbiologyen_US
dc.subjectRhizosphere, Cabbage,Escherichia coli O157:H7, Salmonella Typhimurium, Manure-amended soil, Tropicsen_US
dc.titleRhizosphere Effect on Survival of Escherichia Coli O157:H7 and Salmonella Enterica Serovar Typhimurium in Manure-Amended Soil during Cabbage (Brassica Oleracea) Cultivation under Tropical Field Conditions in Sub-Saharan Africaen_US
dc.typeArticleen_US
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Rhizosphere effect on survival of Escherichia coli O157:H7 and Salmonella enterica serovar Typhimurium in manure-amended soil during cabbage (Brassica oleracea) cultivation under tropical field conditions in Sub-Saharan Africa
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