Scholarlink

<p>Nanoplastics are globally emerging contaminants of soil health, yet the mechanisms by which they disrupt microbial biomass in the rhizosphere soil are poorly understood. We investigated rhizosphere soil microbial network and function using Europium-labeled polystyrene nanoplastics applied at 0-100 mg/Kg for 30 days in greenhouse pot experiments. Rhizosphere metabolite profile and functional genes were analyzed using metabolomic and metagenomic techniques. Results showed that nanoplastics upregulated nitrification gene expression, e.g., <i>amoC</i>, <i>amoA</i>, <i>nxrB,</i> by 90–248%, prompting ammonia to nitrate conversion. Phylogenetic analysis showed that nanoplatics altered plastic degradation gene expression by 39–63%, e.g., <i>O-PVA</i> with linkage to the clade of <i>gntK</i>, and <i>PHB_PP</i> with linkage to the clade of <i>fghA</i> and <i>cysE</i>.</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

Impact of polystyrene nanoplastics on soil microbial biomass

  • 期刊论文

  • 发表日期：

    2026年6月19日

查看全文
  • Chunyang Li,
  • Heping Shang,
  • Zeyu Cai,
  • Weili Jia,
  • Yini Cao,
  • Xiupei Zhou,
  • Jie Zhang,
  • Sixiang Zhuang,
  • Ziqin Lin,
  • Anqi Liang,
  • Lanfang Han,
  • Jason C. White,
  • Chuanxin Ma,
  • Baoshan Xing

摘要

Nanoplastics are globally emerging contaminants of soil health, yet the mechanisms by which they disrupt microbial biomass in the rhizosphere soil are poorly understood. We investigated rhizosphere soil microbial network and function using Europium-labeled polystyrene nanoplastics applied at 0-100 mg/Kg for 30 days in greenhouse pot experiments. Rhizosphere metabolite profile and functional genes were analyzed using metabolomic and metagenomic techniques. Results showed that nanoplastics upregulated nitrification gene expression, e.g., amoC, amoA, nxrB, by 90–248%, prompting ammonia to nitrate conversion. Phylogenetic analysis showed that nanoplatics altered plastic degradation gene expression by 39–63%, e.g., O-PVA with linkage to the clade of gntK, and PHB_PP with linkage to the clade of fghA and cysE.