Multistep introduction of bacteria to natural substrates at different initial inoculation doses

A.A. Kupriyanov, A.M. Semenov, N.N. Kunenkova, A.H.C. van Bruggen

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

The population dynamics of the saprotrophic Pseudomonas fluorescens 32 gfp bacteria and two conventionally pathogenic enterobacteria (Escherichia coli 0157:H7 and Salmonella enterica var. Typhimurium) were investigated in their inoculation at different doses into cattle excreta and their subsequent entering soil and plants and migration through the gastroenteric tract of invertebrates. All the introduced bacteria investigated are shown to be able to overcome ecological barriers as they migrate through the natural substrates and habitats. The introduce microorganisms maintain their high population density even at the lowest initial inoculation dose-10(5) CFU/g of dry matter. Plants were found to be a favorable substrate for the survival of the bacteria investigated (for enteropathogens, in particular). Enteropathogens are able to pass through the gastroenteric tract of invertebrates. Therefore, these organisms can function as incubators and carriers of enteroinfections in nature
Original languageEnglish
Pages (from-to)1038-1043
JournalEurasian Soil Science
Volume42
Issue number9
DOIs
Publication statusPublished - 2009

Keywords

  • escherichia-coli o157-h7
  • enterica serovar typhimurium
  • manure-amended soil
  • community structure
  • bovine manure
  • contamination
  • dynamics
  • cattle
  • fate
  • root

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