Interactions between phytoplankton and bacterioplankton communities in Caohai plateau lake, revealed by environmental DNA metagenomics.

ABSTRACT: Phytoplankton-bacterioplankton interactions critically influence aquatic ecosystem stability, yet their dynamics remain poorly understood in eutrophic plateau lakes. This study employed environmental DNA (eDNA) metagenomics to investigate these cross-kingdom relationships in Caohai Plateau Lake, a vulnerable wetland undergoing macrophyte-to-algae regime shifts, integrating correlation analysis, niche overlap, redundancy analysis (RDA), co-occurrence networks, and neutral community model (NCM). A total of 331 phytoplankton species across 10 phyla were characterized in the phytoplankton community, dominated by Cyanophyta with Microcystis as the representative genus, while bacterioplankton communities were primarily structured by Proteobacteria and Sphingomonas. The assembly of phytoplankton

SUBMITTER: Long Y 

PROVIDER: S-EPMC12772069 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature