Effects of Plant Genotype and Growth Stage on the Betaproteobacterial Communities Associated with Different Potato Cultivars in Two Fields

The analyses showed that in both fields all cultivars had a rhizosphere effect on the total bacterial and betaproteobacterial communities

Özgül İnceoğlu; Joana Falcão Salles; Leo van Overbeek; Jan Dirk van Elsas

2010

Scholarcy highlights

  • Bacterial communities in the rhizosphere are dynamic and susceptible to changes in plant conditions
  • The effects of plant cultivar, growth stage, and soil type on the communities associated with potato cultivars Aveka, Aventra, Karnico, Modena, Premiere, and Desiree were assessed for two different fields containing sandy soil with either a high or low organic compound content
  • We assessed the dynamics of the abundance and community structure of selected soil bacterial communities as a function of plant cultivar, growth stage, and soil type, using six potato cultivars grown in two soils with different textures
  • The changes in bacterial community structure might be explained by differences in water contents and oxygen limitations in water-logged soil
  • The changes in community structure were not associated with changes in bacterial abundance, except for the changes at the beginning of the growing season
  • Our study showed that there was a strong effect of plant growth stage as well as soil type on the bacterial communities that were associated with potato

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