Effects of consecutive monoculture of Pseudostellaria heterophylla on soil fungal community as determined by pyrosequencing.

ABSTRACT: Under consecutive monoculture, the biomass and quality of Pseudostellaria heterophylla declines significantly. In this study, a three-year field experiment was conducted to identify typical growth inhibition effects caused by extended monoculturing of P. heterophylla. Deep pyrosequencing was used to examine changes in the structure and composition of soil fungal community along a three-year gradient of monoculture. The results revealed a distinct separation between the newly planted plot and the two-year, three-year monocultured plots. The Shannon and Simpson diversity indices were significantly higher in the two-year and three-year monoculture soils than in the newly planted soil. Consecutive monoculture of this plant led to a significant increase in relative abundance of Fusarium, Tricho

SUBMITTER: Wu L 

PROVIDER: S-EPMC4877567 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature