Metagenomic insights into the effects of submerged plants on functional potential of microbial communities in wetland sediments

• DOI: 10.1007/s42995-021-00100-3
• Publication Date: 2021-08-27T11:04:09Z
• Authors: Binhao Wang; Xiafei Zheng; Hangjun Zhang; Xiaoli Yu; Yingli Lian; Xueqin Yang; Huang Yu; Ruiwen Hu; Zhili He; Fanshu Xiao; Qingyun Yan
• Keywords: Biogeochemical Cycle; Nitrogen Cycle; Biogeochemistry; Cycling

Submerged plants in wetlands play important roles as ecosystem engineers to improve self-purification and promote elemental cycling. However, their effects on the functional capacity of microbial communities wetland sediments remain poorly understood. Here, we provide detailed metagenomic insights into biogeochemical potential with without submerged (i.e., Vallisneria natans). A large number genes involved carbon (C), nitrogen (N) sulfur (S) cycling were detected sediments. most showed higher abundance than those plants. Based comparison annotated N S databases NCycDB SCycDB), found that fixation (e.g., nifD/H/K/W), assimilatory nitrate reduction nasA nirA), denitrification nirK/S nosZ), sulfate cysD/H/J/N/Q sir), oxidation glpE, soeA, sqr sseA) significantly (corrected p < 0.05) vegetated vs. unvegetated This could be mainly driven by environmental factors including total phosphorus, nitrogen, C:N ratio. The binning metagenomes further revealed some archaeal taxa have methane metabolism hydrogenotrophic, acetoclastic, methylotrophic methanogenesis, which are crucial budget study opens a new avenue for linking functions, has implications understanding global carbon, ecosystems.The online version contains supplementary material available at 10.1007/s42995-021-00100-3.