A range of bacterial species use N-acyl homoserine lactone (AHL) molecules as quorum senging signal to regulate different biological functions, including production of virulence factors and bioflim formation of human pathogens.

• 细菌的群体感应系统(Quorum sensing,QS)参与许多生物学功能的调控,其中包括动植物病原细菌致病因子的生成以及人类某些病原细菌生物膜的形成。 酰基高丝氨酸内酯(N-acylhomoserine lactone,AHL)是调控群体感应系统的关键信号分子。