A Competitive Advantage of Middle-Sized Diatoms From Increasing Seawater CO₂.

ABSTRACT: Diatoms, one of the most important phytoplankton groups, fulfill their carbon demand from seawater mainly by obtaining passively diffused carbon dioxide (CO₂) and/or actively consuming intracellular energy to acquire bicarbonate (HCO₃ ^-). An anthropogenically induced increase in seawater CO₂ reduces the HCO₃ ^- requirement of diatoms, potentially saving intracellular energy and benefitting their growth. This effect is commonly speculated to be most remarkable in larger diatoms that are subject to a stronger limitation of CO₂ supply because of their smaller surface-to-volume ratios. However, we constructed a theoretical model for diatoms and revealed a unimodal relationship between the simulated growth rate response

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC9158336 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature