作　　者： ; ; ; ;

机构地区： 华南农业大学

出　　处： 《华中农业大学学报》 2010年第2期251-256,共6页

摘　　要： 植物根结形态和根结内巨型细胞的数目以及大小由植物-根结线虫互作体系共同决定。通过比较常见的感染根结线虫的植物根结结构及其形成过程,可将根结分成单根结和重根结2种类型,并将根结线虫引起寄主植物形成根结的发展过程分为诱导、发展、成熟和衰败4个阶段。根结内含物成分与正常根尖细胞的内含物有较大的差异。植物细胞分裂周期基因、细胞有丝分裂激酶、细胞壁裂解酶基因以及水通道蛋白基因等与根结的结构及内含物密切相关。笔者以根结线虫引起的植物根结为线索,将过去的根结形态结构方面的研究成果与目前取得的分子生物学研究成果结合起来,对根结的形态及形成机理进行了评述。 Both root knot morphology and its huge cell number and size depend on the interacting parties between plants and its parasite nematodes Meloidogyne spp..Based on comparing root knot＇s texture and growth,it is firstly proposed in this paper that plant root-knots are classified into two types：single root knot and multiple root knot,and the growth process of the host plant′s root-knot is divided into 4 periods,namely,induction,development,maturation and deterioration.Compounds from root-knot are greatly different from those of apical cells in root.These genes include cell cycle genes,mitotic cyclin genes,cell wall cleaving protease genes,cell membrane function genes and cell metabolism genes,which are closely linked to the texture and compounds of plant root-knot caused by Meloidogyne spp..

关 键 词： 根结线虫 根结 结构 内含物

领　　域： [农业科学] [农业科学] [农业科学]