Exploring Light Acclimation in Microalgae
Light availability drives biochemical and molecular adaptations in aquatic algae. We studied eukaryotic algae in the red-shifted-light Hula Lake via spectral incubations and transcriptomic profiling. Photosystem-I adjustments (up-regulated LHCA1 and LHCA4) dominated under red and green-lights, and darkness, while cryptophyte phycobiliproteins increased in red and green-lights. A key chlorophyll biosynthesis enzyme also showed enrichment, highlighting acclimation to varying light conditions. This community-wide transcriptomic study reveals how algae reprogram their molecular machinery. Our findings advance understanding of light-driven ecological adaptations and potential impacts on aquatic ecosystems.
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