Fig. 3From: Effective cultivation of microalgae for biofuel production: a pilot-scale evaluation of a novel oleaginous microalga Graesiella sp. WBG-1Cultivation of Graesiella sp. WBG-1 in 200 m2 raceway pond. Changes in culture color and morphology of the cells during cultivation were shown. Intracellular lipid bodies were stained using Nile Red (yellow) and auto-fluorescence of chloroplasts is seen in red. Scale bar 10 µmBack to article page