Effect of soil chemical fertilization on the diversity and composition of the tomato endophytic diazotrophic community at different stages of growth.

ABSTRACT: The aim of this work was to gain a more comprehensive and perspicacious view of the endophytic diazotrophic community (EDC) of tomato plant bacteria and assess the effects of chemical fertilization and the plant phenologic stage on the status of those microbes. When the EDC of stem and roots from tomato plants grown in a greenhouse with and without exogenous chemical fertilization was examined by pyrosequencing the nifH gene during the growth cycle, a high taxonomic and phylogenetic diversity was observed. The abundant taxa were related to ubiquitous endophytes such as Rhizobium or Burkholderia but also involved anaerobic members usually restricted to flooded plant tissues, such as Clostridium, Geobacter, and Desulfovibrio. The EDC composition appeared to be dynamic during the growth phase

SUBMITTER: Collavino MM 

PROVIDER: S-EPMC7688869 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature