Bacteria:The Low G+C Gram Positives (Vol.3) Class Mollicutes(the Mycoplasmas)柔膜菌纲 (支原体) 。Class Clostridia梭菌纲 Class Bacilli芽孢杆菌纲 -Order Bacillales芽孢杆菌目 -Order Lactobacillales乳杆菌目 CHEN FENG,MICROBIOLOGY,SJTUChen Feng, Microbiology, SJTU Bacteria: The Low G+C Gram Positives (Vol.3) • Class Mollicutes (the Mycoplasmas)柔膜菌纲 （支原体） • Class Clostridia梭菌纲 • Class Bacilli芽孢杆菌纲 – Order Bacillales芽孢杆菌目 – Order Lactobacillales乳杆菌目