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Decreased motility of flagellated microalgae long-term acclimated to CO2-induced acidified waters

Author

Listed:
  • Yitao Wang

    (Chinese Academy of Fishery Sciences
    Qingdao National Laboratory for Marine Science and Technology)

  • Xiao Fan

    (Chinese Academy of Fishery Sciences)

  • Guang Gao

    (Xiamen University)

  • John Beardall

    (Xiamen University
    Monash University)

  • Kazuo Inaba

    (University of Tsukuba)

  • Jason M. Hall-Spencer

    (University of Tsukuba
    University of Plymouth)

  • Dong Xu

    (Chinese Academy of Fishery Sciences)

  • Xiaowen Zhang

    (Chinese Academy of Fishery Sciences)

  • Wentao Han

    (Chinese Academy of Fishery Sciences)

  • Andrew McMinn

    (University of Tasmania)

  • Naihao Ye

    (Chinese Academy of Fishery Sciences
    Qingdao National Laboratory for Marine Science and Technology)

Abstract

Motility plays a critical role in algal survival and reproduction, with implications for aquatic ecosystem stability. However, the effect of elevated CO2 on marine, brackish and freshwater algal motility is unclear. Here we show, using laboratory microscale and field mesoscale experiments, that three typical phytoplankton species had decreased motility with increased CO2. Polar marine Microglena sp., euryhaline Dunaliella salina and freshwater Chlamydomonas reinhardtii were grown under different CO2 concentrations for 5 years. Long-term acclimated Microglena sp. showed substantially decreased photo-responses in all treatments, with a photophobic reaction affecting intracellular calcium concentration. Genes regulating flagellar movement were significantly downregulated (P

Suggested Citation

  • Yitao Wang & Xiao Fan & Guang Gao & John Beardall & Kazuo Inaba & Jason M. Hall-Spencer & Dong Xu & Xiaowen Zhang & Wentao Han & Andrew McMinn & Naihao Ye, 2020. "Decreased motility of flagellated microalgae long-term acclimated to CO2-induced acidified waters," Nature Climate Change, Nature, vol. 10(6), pages 561-567, June.
    • Handle: RePEc:nat:natcli:v:10:y:2020:i:6:d:10.1038_s41558-020-0776-2
    DOI: 10.1038/s41558-020-0776-2
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