ANTIBIOTIC GP, A NEW AMINOGLYCOSIDE ANTIBIOTIC COMPLEX PRODUCED BY MICROMONOSPORA ECHINOSPORA MUTANT 129-P1,WHICH CAN TOLERATE HIGHER CONCENTRATIONS OF PHOSPHATE

• 棘孢小单孢菌耐受无机磷突变株129－P1产生的新的氨基糖苷抗生素复合物GP