Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 12
Articles | Volume 23, issue 12
https://doi.org/10.5194/bg-23-4305-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4305-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 12
Research article
 | 
30 Jun 2026
Research article |  | 30 Jun 2026

Temperature and light regulated patterns of physiology, morphology and elemental stoichiometry in geographically distinct isolates of a cosmopolitan diatom

Alyson M. Theseira, Daniel A. Nielsen, Penelope Ajani, and Katherina Petrou

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Short summary
Diatoms are central to ocean silicon and carbon cycling. Therefore, understanding how ocean warming will affect silica production in diatoms is vital. Here we assessed how temperature and light affect diatom health and silicification in diatoms taken from different latitudes. We found higher latitude strains incorporated more silica, forming denser, thicker cell walls. Our study suggests that under future conditions, diatoms may be less effective at exporting silica and carbon to ocean depths.
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