Effects of l-arginine on growth and development of lipopolysaccharide challenged goslings .
精氨酸对脂多糖刺激仔鹅生长发育的影响。
Further modifications , such as the removal of lipid a synthesis machinery ( a component of the highly immunogenic lipopolysaccharide ) , made the bacteria even safer and less likely to spread in the host while still retaining the ability to occupy the necrotic lesions of tumours .
