Characteristics of sup− mutants and complementation analysis.

ND: Not Detected.aAcidification was observed on solid minimal medium M9 supplemented with 2% w/v glucose, as described before [14].bEnzyme treatment was performed for filtrates from incubation in PDB, as described before [47].

ND：未检出（Not Detected）。a 如先前文献[14]所述，在添加2%重量体积比（w/v）葡萄糖的固体基本培养基M9上可观察到酸化现象。b 如先前文献[47]所述，对在PDB（马铃薯葡萄糖肉汤，Potato Dextrose Broth）中培养所得的滤液开展了酶处理。