The negative responses and acclimation mechanisms of Neopyropia yezoensis conchocelis filaments to short- and long-term ocean acidification.

ABSTRACT:

Background

Ocean acidification (OA) significantly alters the carbonate chemistry of seawater, leading to a decrease of seawater pH to impact the physiological and biochemical processes of those intertidal macroalgae. Previous studies have focused on the response of macroalgae to OA at thallus stage, while the effects at filamentous stage remain insufficiently explored.

Results

This study investigated the physiological-biochemical and molecular mechanisms of the filamentous conchocelis stage (the diploid sporophyte) of Neopyropia yezoensis responding to short- (5 days) and long-term (20 days) OA (2000 ppm CO₂, pH 7.53). The results showed that short-term OA rapidly inhibited the growth and photosynthesis, suppressed chlorophyll synthesis and nitrogen assimilation,

SUBMITTER: Li D 

PROVIDER: S-EPMC12560485 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature