Diel Trade-Off Between Anabolism and Catabolism: Coordinated Diel Regulation of Physiology, Transcription and Metabolism in Harmful Algae Microcystis aeruginosa.

Microcystis aeruginosa exhibits a coordinated diel trade-off, with daytime anabolic activity and nighttime catabolic processes, optimizing energy use during a 14-h:10-h cycle.

• Why it matters: Understanding these diel regulatory mechanisms is crucial for managing harmful cyanobacterial blooms, which threaten aquatic ecosystems and water quality worldwide.
• What they did: The study integrated physiological measurements, transcriptomics, and metabolomics to analyze diel dynamics in M. aeruginosa, revealing distinct gene expression and metabolic patterns across day and night.
• The result: Findings show a tightly linked anabolic and catabolic network that enhances metabolic efficiency and competitive success, providing insights for bloom prediction and control strategies.