Functional and phylogenetic diversity of cellulase genes in agricultural soil under two different tillage treatments.
- Resource Type
- Authors
- de Vries, M.C.
- Source
- Diss., 2018, 174 S.
- Subject
- complex mixtures
- Language
- German
Microbial cellulose degradation is crucial for soil carbon sequestration and fertility. The effect of tillage intensity on this process was analysed using two agricultural soil-shotgun-metagenomes. In the surface soil horizon of an organic farming experiment, reduced tillage led to enrichment of genes encoding beta-glucosidases and carbohydrate-binding domains as compared to conventional tillage. However, no tillage effect was observed on the genetic potential for endoglucanases or exoglucanases in both soil metagenomes, suggesting a secondary role of tillage in shaping the degradation potential in agricultural soil.