Gas-filled structures providing buoyancy in photosynthetic organisms.
D001419:Bacteria / Q000378:metabolism; D000458:Cyanobacteria / Q000378:metabolism; D005618:Fresh Water; D005740:Gases; D006217:Halobacterium / Q000378:metabolism; D006874:Hydrostatic Pressure; D008027:Light; D008386:Marine Biology; D010788:Photosynthesis; D011312:Pressure; D013395:Sucrose; D014867:Water
D005740:Gases; D014867:Water; D013395:Sucrose