Results showed: Natto bacillus sawamuraa was a kind of aerobic bacteria, in the column shape, swelled in the middle and with no production of Arginine hydrolase.

• 结果表明：纳豆芽孢杆菌是需氧菌，芽孢呈柱形中间不膨大，不产生精氨酸双水解酶；