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Marine toxin domoic acid alters nitrogen cycling in sediments

Author

Listed:
  • Zelong Li

    (Dalian University of Technology)

  • Jing Wang

    (Dalian University of Technology)

  • Hao Yue

    (Dalian University of Technology)

  • Miaomiao Du

    (Dalian University of Technology)

  • Yuan Jin

    (National Marine Environmental Monitoring Center)

  • Jingfeng Fan

    (National Marine Environmental Monitoring Center)

Abstract

As a red tide algal toxin with intense neurotoxicity distributed worldwide, domoic acid (DA) has attracted increasing concerns. In this work, the integrative analysis of metagenome and metabolome are applied to investigate the impact of DA on nitrogen cycling in coastal sediments. Here we show that DA can act as a stressor to induce the variation of nitrogen (N) cycling by altering the abundance of functional genes and electron supply. Moreover, microecology theory revealed that DA can increase the role of deterministic assembly in microbial dynamic succession, resulting in the shift of niches and, ultimately, the alteration in N cycling. Notably, denitrification and Anammox, the important process for sediment N removal, are markedly limited by DA. Also, variation of N cycling implies the modification in cycles of other associated elements. Overall, DA is capable of ecosystem-level effects, which require further evaluation of its potential cascading effects.

Suggested Citation

  • Zelong Li & Jing Wang & Hao Yue & Miaomiao Du & Yuan Jin & Jingfeng Fan, 2023. "Marine toxin domoic acid alters nitrogen cycling in sediments," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43265-4
    DOI: 10.1038/s41467-023-43265-4
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    References listed on IDEAS

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    1. Weibing Xun & Wei Li & Wu Xiong & Yi Ren & Yunpeng Liu & Youzhi Miao & Zhihui Xu & Nan Zhang & Qirong Shen & Ruifu Zhang, 2019. "Diversity-triggered deterministic bacterial assembly constrains community functions," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    2. Meredith E. Seeley & Bongkeun Song & Renia Passie & Robert C. Hale, 2020. "Microplastics affect sedimentary microbial communities and nitrogen cycling," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
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