Articles | Volume 22, issue 20
https://doi.org/10.5194/bg-22-5961-2025
https://doi.org/10.5194/bg-22-5961-2025
Research article
 | 
23 Oct 2025
Research article |  | 23 Oct 2025

Temperature fluctuation alleviates the negative effects of warming on marine diatoms: comparison between Thalassiosira sp. and Nitzschia closterium f. minutissima

Yangjie Sheng, Yanan Wang, Ting Cai, Yuntao Wang, Afef Fathalli, Sana Ben Ismail, and Yuanyuan Feng

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Cited articles

Anderson, S. I., Barton, A. D., Clayton, S., Dutkiewicz, S., and Rynearson, T. A.: Marine phytoplankton functional types exhibit diverse responses to thermal change, Nat. Commun., 12, 6413, https://doi.org/10.1038/s41467-021-26651-8, 2021. 
Arrhenius, S.: Über die Dissociationswärme und den Einfluss der Temperatur auf den Dissociationsgrad der Elektrolyte, Zeitschrift für Physikalische Chemie, 4, 96–116, https://doi.org/10.1515/zpch-1889-0408, 1889. 
Baker, K. G., Robinson, C. M., Radford, D. T., McInnes, A. S., Evenhuis, C., and Doblin, M. A.: Thermal Performance Curves of Functional Traits Aid Understanding of Thermally Induced Changes in Diatom-Mediated Biogeochemical Fluxes, Front. Mar. Sci., 3, 44, https://doi.org/10.3389/fmars.2016.00044, 2016. 
Barton, S., Jenkins, J., Buckling, A., Schaum, C. E., Smirnoff, N., Raven, J. A., Yvon-Durocher, G., and Ezenwa, V.: Evolutionary temperature compensation of carbon fixation in marine phytoplankton, Ecol. Lett., 23, 722–733, https://doi.org/10.1111/ele.13469, 2020. 
Bernhardt, J. R., Sunday, J. M., Thompson, P. L., and O'Connor, M. I.: Nonlinear averaging of thermal experience predicts population growth rates in a thermally variable environment, P. Roy. Soc. B, 285, 20181076, https://doi.org/10.1098/rspb.2018.1076, 2018. 
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Short summary
We conducted semi-continuous incubation experiments on two ecologically significant marine diatom species, Thalassiosira sp. and Nitzschia closterium f. minutissima, to examine their physiological responses to ocean warming and temperature fluctuation. These findings highlight the influence of temperature fluctuation on the physiology of marine diatoms in the context of global warming, thus having implications for a further understanding of biogeochemical feedbacks.
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