Chinese Journal of Oceanology and Limnology

, Volume 32, Issue 2, pp 358–364

Pyropia yezoensis can utilize CO2 in the air during moderate dehydration

  • Wei Zhou (周伟)
  • Linwen He (何林文)
  • Fang Yang (杨芳)
  • Apeng Lin (林阿朋)
  • Baoyu Zhang (张宝玉)
  • Jianfeng Niu (牛建峰)
  • Guangce Wang (王广策)
Biology

DOI: 10.1007/s00343-014-3093-7

Cite this article as:
Zhou, W., He, L., Yang, F. et al. Chin. J. Ocean. Limnol. (2014) 32: 358. doi:10.1007/s00343-014-3093-7
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Abstract

Pyropia yezoensis, an intertidal seaweed, experiences regular dehydration and rehydration with the tides. In this study, the responses of P. yezoensis to dehydration and rehydration under high and low CO2 concentrations ((600–700)×10−6 and (40−80)×10−6, named Group I and Group II respectively) were investigated. The thalli of Group I had a significantly higher effective photosystem II quantum yield than the thalli of Group II at 71% absolute water content (AWC). There was little difference between thalli morphology, total Rubisco activity and total protein content at 100% and 71% AWC, which might be the basis for the normal performance of photosynthesis during moderate dehydration. A higher effective photosystem I quantum yield was observed in the thalli subjected to a low CO2 concentration during moderate dehydration, which might be caused by the enhancement of cyclic electron flow. These results suggested that P. yezoensis can directly utilize CO2 in ambient air during moderate dehydration.

Keyword

Pyropia yezoensis dehydration photosystem II quantum yield photosystem I quantum yield cyclic electron flow 

Copyright information

© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Wei Zhou (周伟)
    • 1
    • 2
    • 3
  • Linwen He (何林文)
    • 1
  • Fang Yang (杨芳)
    • 4
  • Apeng Lin (林阿朋)
    • 1
  • Baoyu Zhang (张宝玉)
    • 1
  • Jianfeng Niu (牛建峰)
    • 1
  • Guangce Wang (王广策)
    • 1
  1. 1.Institute of OceanologyChinese Academy of SciencesQingdaoChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Marine Fisheries Institute of JiangsuNantongChina
  4. 4.College of Marine Science and EngineeringTianjin University of Science and TechnologyTianjinChina

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