Scholarlink

<p>Marine plastics are known to be a serious threat to coral reef ecosystems worldwide, including along the coast of subtropical Okinawa Island, but until now there have been no studies on the bacterial communities that form on plastics from the coral reefs of this region. In this study, bacterial communities were examined by amplicon sequencing analyses after exposure experiments utilizing polyethylene terephthalate (PET) and glass plates exposed to the sea surface in Okinawa across 1, 3, and 6&#xa0;months, and compared to bacterial communities of the surrounding seawater. Bacterial community compositions on solid surfaces (PET and glass) were different when compared to those in seawater, but we did not observe differences by solid surface types. However, community compositions were significantly distinct with exposure times. Particularly, PET and glass samples after 6&#xa0;months’ exposure had significantly higher alpha diversity than any other group, uniquely including many minor groups of bacteria, which may be related to increasing water temperatures in the summer. Several bacterial taxa were significantly more enriched on PET and glass samples than in the seawater samples. Among enriched taxa were hydrocarbon degraders and indicators of eutrophication, groups that prefer high-temperature environments, and fish pathogens, which have not been reported in similar previous studies. The current study revealed distinct and diverse bacterial communities around coral reefs, including taxa that represent potential threats to the local coral reef ecosystems. Our results indicate that monitoring and additional plastisphere research in coral reef areas are warranted.</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

Bacterial community formation on plastic and glass in coral reefs

  • 期刊论文

  • 发表日期：

    2025年10月31日

查看全文
  • Yusuke Iwaki,
  • Kohei Hamamoto,
  • Fabian Gösser,
  • Chengze Li,
  • Jeffrey Jolly,
  • Sen-Lin Tang,
  • Timothy Ravasi,
  • James Davis Reimer

摘要

Marine plastics are known to be a serious threat to coral reef ecosystems worldwide, including along the coast of subtropical Okinawa Island, but until now there have been no studies on the bacterial communities that form on plastics from the coral reefs of this region. In this study, bacterial communities were examined by amplicon sequencing analyses after exposure experiments utilizing polyethylene terephthalate (PET) and glass plates exposed to the sea surface in Okinawa across 1, 3, and 6 months, and compared to bacterial communities of the surrounding seawater. Bacterial community compositions on solid surfaces (PET and glass) were different when compared to those in seawater, but we did not observe differences by solid surface types. However, community compositions were significantly distinct with exposure times. Particularly, PET and glass samples after 6 months’ exposure had significantly higher alpha diversity than any other group, uniquely including many minor groups of bacteria, which may be related to increasing water temperatures in the summer. Several bacterial taxa were significantly more enriched on PET and glass samples than in the seawater samples. Among enriched taxa were hydrocarbon degraders and indicators of eutrophication, groups that prefer high-temperature environments, and fish pathogens, which have not been reported in similar previous studies. The current study revealed distinct and diverse bacterial communities around coral reefs, including taxa that represent potential threats to the local coral reef ecosystems. Our results indicate that monitoring and additional plastisphere research in coral reef areas are warranted.