Contrasting microbial community responses to salinization and straw amendment in a semiarid bare soil and its wheat rhizosphere.

ABSTRACT: Soil salinization is a major constraint of agriculture in semiarid ecosystems. In this study soil microcosms were applied to evaluate the impact of a lower- and higher-level salinization treatment of a pristine scrubland soil on the abundance of Bacteria, Archaea, and Fungi, and on prokaryotic diversity in bare soil and the rhizosphere of wheat assessed by qPCR and high-throughput sequencing of 16S rRNA gene amplicons. Furthermore, the impact of soil straw amendment as a salt-stress alleviation strategy was studied. While the low-level salinity stimulated plant growth, the seedlings did not survive under the higher-level salinity unless the soil was amended with straw. Without the straw amendment, salinization had only minor effects on the microbial community in bare soil. On the other han

SUBMITTER: Szoboszlay M 

PROVIDER: S-EPMC6611862 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature