外源质粒对根瘤菌共生性的影响  

EFFECTS OF EXOGENOUS PLASMID ON SYMBIOTICPROPERTIES OF RHIZOBIA

作　　者：李孱[1,2] 白景华[1,2] 向文胜 李威[3] 

机构地区：[1]湖北大学生命科学系 [2]东北农业大学中心实验室 [3]武汉市农校

出　　处：《东北农业大学学报》1998年第2期117-121,共5页Journal of Northeast Agricultural University

摘　　要：研究了接受外源质粒ｐＪＰ４的根瘤菌对豆科植物的共生性、固氮能力和根瘤结构的影响，以及质粒ｐＪＰ４引入根瘤菌后的表达。结果表明，接受了外源质粒ｐＪＰ４的根瘤菌保持了根瘤菌的共生性状、乙炔、还原酶活性，所形成的根瘤结构与亲本株没有明显差别；质粒ｐＪＰ４引入根瘤菌后，２．４－Ｄ的降解功能未得到表达。おhe symbiotic properties of rhizobium received pesticide degrading plasmid pJP4 were studied The resulting showed that the conjugants (rhizobium received exogenous plasmid pJP4), R phaseoli 3622-15 (pJP4), still maintained the ability of forming root nodules The size、shape、structure and nitrogenase activities of nodules formed by the conjugant strain 3622-15 (pJP4) and the recipient strain 3622-15 had no difference, but the 2,4-D degradating function of pJP4 did not express in the strain of 3622-15 (pJP4)

关 键 词：质粒 根瘤菌 共生性 

分 类 号：Q939.114[生物学—微生物学]