Leaf and Root Litter Species Identity Influences Bacterial Community Composition in Short-Term Litter Decomposition

Microorganisms play a crucial role in litter decomposition terrestrial ecosystems. The leaf and fine root litters of Robinia pseudoacacia Linn., Quercus acutissima Carr., Pinus tabulaeformis Carr. densiflora Sieb. were analysed using the nylon bag method Illumina MiSeq high-throughput sequencing for amplification bacterial 16S rRNA V4–V5. We assessed effects species on community after one year’s decomposition. results showed that (1) remaining mass was smaller than R. Q. acutissima, while opposite result found P. densiflora. (2) structure most highly correlated with initial N content N:P, roots lignin content. (3) phyla Bacteroidetes, Acidobacteria Gemmatimonadetes significantly affected by species, whereas relative abundances Firmicutes Chloroflexi only tissues. Acidobacteria, higher those litter, Bacteroidetes. genera Burkholderia-Paraburkholderia, Sphingomonas Mucilaginibacter tissues (p < 0.05). abundance Burkholderia-Paraburkholderia Bradyrhizobium, Mucilaginibacter. Pearson’s correlation analysis dominant properties, especially Bacteroides, Burkholderia Sphingomonas. These findings indicate their interactions are more important shaping diversity composition, which chemical properties litter.