Comparison of quality and quantity of DNA samples extracted from B. <i>braunii</i> using different methods.

aThe DNA purity was estimated by calculating the ratio between the absorbance at 260 nm and 280 nm. bThe DNA concentration was quantified using a spectrophotometer at 260 nm. cThe cultured cells were harvested from culture of 50 ml (commercial kit), 3 ml (BPC & F&T methods), and 1 ml (EMNE method for B. braunii), respectively. dThe DNA yield was estimated by calculating the DNA concentration between the dry cell weight and total DNA. CCALA, Culture Collection of Autotrophic Organisms; NIES, National Institute for Environmental Studies; UTEX, the Culture Collection of Algae at the University of Texas.