Long term tillage regime alters bacterial assimilation of xylose and cellulose.

ABSTRACT: Microbial growth dynamics determine carbon fate in soil by transforming carbon inputs into microbial products available for stabilization on soil surfaces. Management practices such as tillage disturb microbial communities and promote C loss, but the degree to which tillage alters bacterial metabolism of soil C remains poorly described. We conducted a multi-substrate DNA stable isotope probing experiment using soil from a long-term field experiment with a 42-year legacy of either no-till or annual moldboard plowing. We predicted that this land use history would alter C assimilation dynamics due to differences in bacterial growth responses. We incubated soil from each tillage regime with ¹³C-xylose and ¹³C-cellulose, substrates that differ in bioavailability and which

SUBMITTER: Schaedel M 

PROVIDER: S-EPMC12442353 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature