中文摘要：

假单胞菌和节杆菌是两种最重要的尼古丁降解菌，目前节杆菌降解尼古丁的代谢途径、代谢相关基因和酶学机制都已经研究清楚，但是对假单胞菌降解尼古丁的研究尚不完善。本文将主要针对假单胞菌，从目前分离到的假单胞菌属微生物的菌株种类、代谢途径、代谢相关基因和酶学机制等方面阐述假单胞菌属微生物降解尼古丁的研究进展。

英文摘要：

Pseudomonas sp. and Arthrobacter sp. were two dominant genera in nicotine - degrading microorganism. Studies of nicotine degrading pathway, and genetic structures on Arthrobacter were rather distinct, while it＇ s short of com- pleteness on Pseudomonas. The latest knowledge on the species of this genus, metabolism pathway, degradation genes and enzymes of Pseudomonas was proposed.