DiatomsChlorophytaPhytoplanktonAlgal ProteinsDNA, AlgalMicroalgaeSeawaterChlamydomonas reinhardtiiPlastidsPhotosynthesisSilicic AcidXanthophyllsStramenopilesDinoflagellidaPhylogenyChlorophyllHaptophytaUlvaCryptophytaAquatic OrganismsEukaryotaCyanobacteriaSilicon DioxideChlorellaOceans and SeasSiliconMolecular Sequence DataSymbiosis