Microbial Profiling of a Suppressiveness-Induced Agricultural Soil Amended with Composted Almond Shells.

ABSTRACT: This study focused on the microbial profile present in an agricultural soil that becomes suppressive after the application of composted almond shells (AS) as organic amendments. For this purpose, we analyzed the functions and composition of the complex communities present in an experimental orchard of 40-year-old avocado trees, many of them historically amended with composted almond shells. The role of microbes in the suppression of Rosellinia necatrix, the causative agent of avocado white root rot, was determined after heat-treatment and complementation experiments with different types of soil. Bacterial and fungal profiles obtained from natural soil samples based on the 16S rRNA gene and ITS sequencing revealed slight differences among the amended (AS) and unamended (CT) soils. When the

SUBMITTER: Vida C 

PROVIDER: S-EPMC4722121 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature