Submerged macrophyte restoration drives microbial community reassembly and functional adaptation for synergistic water quality improvement

作者：Ruili Xie, Manqi Chang, Yanjin Gao, Yasong Chen · 发表于：Total Environment Microbiology · 年份：2025 · DOI：10.1016/j.temicr.2025.100048 · 被引用次数：8 · 研究领域：Aquatic Ecosystems and Phytoplankton Dynamics、Microbial Community Ecology and Physiology、Freshwater macroinvertebrate diversity and ecology

• Submerged macrophytes reshaped microbial communities • Taxa linked to nutrient cycling and organic matter degradation were enriched • Heterogeneous selection predominated in microbial assembly mechanisms • Sediment nutrients drive microbial assembly • The synergistic interaction of submerged macrophytes and microorganisms was elucidated Urban lakes are important in sustaining urban ecological equilibrium through microclimate regulation, biodiversity support, and provision of ecosystem services. Submerged macrophyte restoration has emerged as a promising strategy to rehabilitate disturbed lake ecosystems, as these plants not only improve water clarity and nutrient cycling but also shape microhabitats that support microbial communities pivotal for biogeochemical processes. However, current studies predominantly focus on microbial α-diversity, lacking systematic comparisons of microbial succession and cascade purification mechanisms between restored ((H zone) and non-restored (P zone) zones during long-term macrophyte recovery. This study aimed to elucidate the mechanisms underlying submerged macrophyte-microorganism synergies in anthropogenically disturbed urban lakes by analyzing microbial structure, diversity, ecological functions, and environmental drivers across restored and non-restored areas. Results demonstrated that submerged macrophyte restoration reshaped sediment microbial communities, enhancing community stability and enriching taxa linked to nutrient cycling, hea...