Indigenous Populations of Three Closely Related Lysobacter spp. in agricultural soils using real-time PCR

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Abstract

Previous research had shown that three closely related species of Lysobacter, i.e., Lysobacter antibioticus, Lysobacter capsici, and Lysobacter gummosus, were present in different Rhizoctonia-suppressive soils. However, the population dynamics of these three Lysobacter spp. in different habitats remains unknown. Therefore, a specific primer–probe combination was designed for the combined quantification of these three Lysobacter spp. using TaqMan. Strains of the three target species were efficiently detected with TaqMan, whereas related non-target strains of Lysobacter enzymogenes and Xanthomonas campestris were not or only weakly amplified. Indigenous Lysobacter populations were analyzed in soils of 10 organic farms in the Netherlands during three subsequent years with TaqMan. These soils differed in soil characteristics and crop rotation. Additionally, Lysobacter populations in rhizosphere and bulk soil of different crops on one of these farms were studied. In acid sandy soils low Lysobacter populations were present, whereas pH neutral clay soils contained high populations (respectively,
Original languageEnglish
Pages (from-to)948-958
JournalMicrobial Ecology
Volume62
Issue number4
DOIs
Publication statusPublished - 2011

Keywords

  • biological-control
  • enzymogenes christensen
  • antimicrobial activity
  • bacterial communities
  • rhizosphere
  • rhizoplane
  • cucumber
  • diseases
  • growth
  • 3.1t8

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