【摘要】 粪产碱菌分离自我国南方水稻田中，根据系统发育分类法属变形细菌中β亚类。粪产碱菌不仅能附着于水稻根表，部分细菌还能进入稻根细胞内，有较高的固氮能力，在高铵下它们能合成固氮酶，并具有明巳的ＰＧＰＲ作用。本文系统地论述了粪产碱菌的生物学特性及其联合固氮研究的进展更多还原

【Abstract】 In this review we shall focus on the biological characters of Alcaligenes feacalis and itsroles of associative nitrogen fixation. A. faecalis isolated from rice roots is widespread in paddy soil ofChina. Based on phylogtenetic classification. A. feacalis belongs to the beta subdivision of the proteobacte-ria. it was found to be close association with rice and higher nitrogen-fixing activity.A. feacalis accumu-late on the rice root surface, and part of them could enter into the rice root. It can grow in the intercellularspace, especially inside the root cells, and multiply and fix dinitrogen there. A. feacalis could synthesizenitrogenase when it was grown in the medium containing a high concentration of ammonia.更多还原