STUDIES ON SPHEROPLAST FORMATION AND REGENERATION OF Esherichia coli O 2(Nor r,Chl s) AND O 78 (Chl r,Nor s) STRAINS

• 大肠杆菌O_2(Nor~r,Chl~s)、O_(78)(Chl~r,Nor~s)原生质体制备和再生的研究