an antibiotic obtained from a strain of the actinomycete Streptomyces erythreus,effective against many gram-positive bacteria and some gram-negative bacteria

• 一种抗生素，可以由放线菌的变形得到链霉菌性红细胞增多，有效地抵制许多革兰氏阳性菌和一些革兰氏阴性细菌