Scholarlink

<p>Lakes face anthropogenic stressors such as climate change, salinization, and eutrophication, and microplastics (MPs) now emerge as a new concern since they act as vectors for pathogenic bacteria, giving rise to concern about environmental health. This study explores cultivable viable bacterial (CVB) biofilm communities on MPs along a salinity gradient (0.25 to 192.69‰) in 11 lakes in Türkiye. The MPs consisted mainly of fibers and 50-µm to 5-mm-sized fragments. The dominant cultivable bacterial phyla in both MP-associated biofilms and lake water were <i>Proteobacteria</i> and <i>Firmicutes</i>. On MPs, <i>Pseudomonadaceae</i> was the dominant family (94.7%), followed by <i>Enterobacteriaceae</i> (1.2%). Various halolerant pathogens occurred as well, e.g., <i>Proteus</i> spp. strains on MP surfaces in Lake Bolluk (95.7‰) and <i>Alcaligenes</i> spp. in Lake Tuz, the two lakes with the highest salinity, while the halophilic <i>Shewanella putrefaciens</i> was prevalent in highly alkaline Lake Salda. <i>Staphylococcus</i>, <i>Commomonas</i>, and <i>Enterobacter</i> were found in all lakes regardless of salinity level, and CVB strains were more common on MPs surfaces than in lake water. Our findings suggest that MPs promote the development, dispersion, and bioavailability of bacteria, including pathogens, thus increasing ecological and health-related impacts in lakes under different salinity conditions.</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

Changes in microplastic-associated bacterial communities along a salinity gradient in Central Anatolian lakes of Türkiye

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月25日

查看全文
  • Kerem Gökdağ,
  • Tülay Pekmez,
  • Gülçin Akca,
  • Mustafa Korkmaz,
  • Juan Pablo Pacheco,
  • Gökben Başaran Kankılıç,
  • Cemreay Dede,
  • Korhan Özkan,
  • Meryem Beklioğlu,
  • Erik Jeppesen,
  • Zuhal Akyürek,
  • Ülkü Nihan Tavşanoğlu

摘要

Lakes face anthropogenic stressors such as climate change, salinization, and eutrophication, and microplastics (MPs) now emerge as a new concern since they act as vectors for pathogenic bacteria, giving rise to concern about environmental health. This study explores cultivable viable bacterial (CVB) biofilm communities on MPs along a salinity gradient (0.25 to 192.69‰) in 11 lakes in Türkiye. The MPs consisted mainly of fibers and 50-µm to 5-mm-sized fragments. The dominant cultivable bacterial phyla in both MP-associated biofilms and lake water were Proteobacteria and Firmicutes. On MPs, Pseudomonadaceae was the dominant family (94.7%), followed by Enterobacteriaceae (1.2%). Various halolerant pathogens occurred as well, e.g., Proteus spp. strains on MP surfaces in Lake Bolluk (95.7‰) and Alcaligenes spp. in Lake Tuz, the two lakes with the highest salinity, while the halophilic Shewanella putrefaciens was prevalent in highly alkaline Lake Salda. Staphylococcus, Commomonas, and Enterobacter were found in all lakes regardless of salinity level, and CVB strains were more common on MPs surfaces than in lake water. Our findings suggest that MPs promote the development, dispersion, and bioavailability of bacteria, including pathogens, thus increasing ecological and health-related impacts in lakes under different salinity conditions.