Zhou, Sha; Wang, Jieying; Chen, Lan; Wang, Jun; Zhao, Fazhu published the artcile< Microbial community structure and functional genes drive soil priming effect following afforestation>, Synthetic Route of 87-73-0, the main research area is soil microorganism carbon afforestation biodegradation gene enzyme metagenome; (13)C-glucose labeling; Afforestation; Metagenomic sequencing; Microbial function; Stable C.
Afforestation substantially modifies native soil organic carbon (SOC) decomposition via plant carbon inputs (the priming effect), and in turn, triggers vital biogeochem. processes that influence the regulation of soil carbon dynamics. Soil microbes are crucial in regulating the direction and magnitude of the priming effect. In the present study, we performed metagenomic sequencing and 13C-glucose labeling analyses of microbial communities and priming effects across a Robinia pseudoacacia afforestation chronosequence (14-, 20-, 30-, and 45-yr-old stands) in the Loess Plateau in China, with adjacent farmland being selected as a control. Our results revealed that the cumulative priming effect across five sites along the afforestation chronosequence initially increased and approached a peak value in the 20-yr-old stand, after which it declined. The priming effect was predominantly driven by the microbial community structure (i.e., the fungal-to-bacterial ratios and relative abundances of Proteobacteria and Actinobacteria), and stable C decomposition genes and C-degrading enzymes. Specifically, among the key functional genes correlated with priming effect, which were identified in orders Rhizobiales and Pseudonocardiales, considerably promoted SOC priming. Overall, our findings indicate that afforestation alters soil microbial community structure and function, particularly with respect to enhancing stable soil C decomposition genes, which may promote SOC priming. The findings of the present study could enhance our understanding of fresh C input-induced changes associated with C mineralization in the context of the revegetation of ecol. fragile areas. The sequencing data have been deposited into the NCBI database with the accession number SRP319300.
Science of the Total Environment published new progress about Acidimicrobiales. 87-73-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H10O8, Synthetic Route of 87-73-0.
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