inducible GRE

The lac operon is an inducible operon, whereas the trp operon is a repressible operon.

乳糖元是可诱导元；色氨元是可阻遏元。

The best studied inducible and repressible enzyme in phytopathogenic prokaryotes is endo-pectate lyase in E. carotovora.

植物病原原生物中研究得最清楚是胡萝卜软腐菌果胶解酶。