Physiological and transcriptomic responses of Sargassum hemiphyllum var. chinense to ocean acidification and nitrogen enrichment.

ABSTRACT: Sargassum hemiphyllum var. chinense is a major brown macroalga and has important ecological and economic significance. Ocean acidification and nitrogen enrichment are serious threats to marine ecosystems primarily by altering the physiology of organisms. However, the response of S. hemiphyllum var. chinense to the combined effects of ocean acidification and elevated nitrogen levels remains unclear. This study conducted a 7-day dual-factor experiment to investigate the physiological and transcriptional responses of S. hemiphyllum var. chinense under two CO₂ levels (400 μatm and 1000 μatm) and two NO₃^⁻ levels (50 μmol/L and 300 μmol/L). The results showed that high CO₂ and NO₃^- concentrations promoted the synthesis of photosyn

SUBMITTER: Chen J 

PROVIDER: S-EPMC12613617 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature