Scholarlink

<p>Submerged macrophytes play a crucial role in stabilizing urban aquatic ecosystems and are widely used in ecological restoration. However, their interactions with microbial communities in nitrogen removal under sewage stress remain unclear. In this study, we combined plant gene expression analysis, metabolite profiling, and microbial community sequencing to investigate <i>Vallisneria natans</i> and its associated microbiome under chronic nitrogen exposure (8 mg·L⁻¹). The stressed plants released chemical signals that recruited beneficial bacteria to inner microzones on their leaf surfaces, forming a mutualistic relationship in which bacteria enhance plant survival while consuming plant-produced carbon. This plant–microbiome system removed 35.3% of nitrogen at 16.17 ± 5.44°C, approximately 1.6 times higher than that of an artificial plant system. A combined process-based and data-driven model showed that this interaction contributed to over 50% of total nitrogen removal, highlighting submerged macrophytes as an effective nature-based strategy for restoring polluted urban aquatic ecosystems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Host-driven microbiome assembly supports nitrogen removal by macrophytes under chronic nitrogen stress

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月20日

查看全文
  • Chen-qian Bao,
  • Chuan-jun Dai,
  • Su-qing Wu,
  • Shi-wen Lu,
  • Meng-li Wan,
  • Zhen-min Jin,
  • Xiang-yong Zheng,
  • Min Zhao,
  • De-rong Xiao,
  • Ke Bei,
  • Zhan Jin

摘要

Submerged macrophytes play a crucial role in stabilizing urban aquatic ecosystems and are widely used in ecological restoration. However, their interactions with microbial communities in nitrogen removal under sewage stress remain unclear. In this study, we combined plant gene expression analysis, metabolite profiling, and microbial community sequencing to investigate Vallisneria natans and its associated microbiome under chronic nitrogen exposure (8 mg·L⁻¹). The stressed plants released chemical signals that recruited beneficial bacteria to inner microzones on their leaf surfaces, forming a mutualistic relationship in which bacteria enhance plant survival while consuming plant-produced carbon. This plant–microbiome system removed 35.3% of nitrogen at 16.17 ± 5.44°C, approximately 1.6 times higher than that of an artificial plant system. A combined process-based and data-driven model showed that this interaction contributed to over 50% of total nitrogen removal, highlighting submerged macrophytes as an effective nature-based strategy for restoring polluted urban aquatic ecosystems.