刺槐根瘤发生的超微结构研究  

AN ULTRASTRUCTURAL STUDY ON THE NODULE FORMATION OF ROBINIA PSEUDOACACIA

作　　者：韩素芬[1] 黄金生[1] 甘习华 苏纪宇 

机构地区：[1]南京林业大学森林资源与环境学院

出　　处：《南京林业大学学报（自然科学版）》1996年第4期17-20,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家自然科学基金

摘　　要：通过扫描电镜和透射电镜观察刺槐（Ｒｏｂｉｎｉａｐｓｅｕｄｏａｃａｃｉａ）幼瘤的超微结构。刺槐根瘤中侵入线丰富、粗大，内具有高电子密度基质，基质中包埋大量根瘤菌。The ultrastructure of young nodules of Robinia pseudoacacia, examined with TEM and SEM. The infected cells of Robinia pseudoacacia nodules contain plentiful infection threads with electrondense matrix insidel. The thread wall encloses the matrix containing a great deal of the invading rhizobia. The rhizobia escape from the unwalled regions of the infection thread or by means of the degradation of the thread wall, subsequently the bacteria become free in the host cytoplasm.

关 键 词：刺槐 根瘤发生 超微结构 

分 类 号：Q945[生物学—植物学] S792.270.1[农业科学—林木遗传育种]