Comparison of quality and quantity of DNA samples extracted from B. braunii 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.