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首页> 外文期刊>Nematropica >Ultrastructural Response of Coffee Roots to Root-Knot Nematodes, Meloidogyne Exigua and M. Megadora
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Ultrastructural Response of Coffee Roots to Root-Knot Nematodes, Meloidogyne Exigua and M. Megadora

机译：咖啡根对根结线虫，Meloidogyne Exigua和M. Megadora的超微结构响应

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Rodrigues, A. C. F. de O., I. M. de O. Abrantes, M. T. Melillo, and T. Bleve-Zacheo. 2000. Ultrastructural response of coffee roots to root-knot nematodes, Meloidogyne exigua and M. megadora . Nematropica 30:201-210. Histological and ultrastructural changes induced in Coffea arabica cv. Catuaiamarelo and Catimor ( Coffea arabica cv. Caturra t Timor Hybrid) by two populations of Meloidogyne exigua and one of M. megadora are reported. All second-stage juveniles of both species penetrated through the rhizodermis of the root directly behind the root cap and reached the stele near the vascular elements. In Catuaiamarelo roots, cells acting as feeding sites increased their synthetic activity and became multinucleate cells. Nuclear activity and dense cytoplasm observed in cells of roots inoculated with M. exigua indicated a susceptible response of the coffee plants. Seedling cells fed upon by M. megadora showed retraction and roughening of the inner wall surface, great presence of param
机译：Rodrigues，A。C. F. de O.，I。M. de O. Abrantes，M。T. Melillo和T. Bleve-Zacheo。 2000。咖啡根对根结线虫，Meloidogyne exigua和M.megadora的超微结构响应。 Nematropica 30：201-210。在阿拉伯咖啡cv中诱导的组织学和超微结构变化。据报道，有两个种群的Meloidogyne exigua和一个M. megadora导致了Catuuamarelo和Catimor（阿拉伯咖啡的Caturra t Timor杂种）。这两个物种的所有第二阶段的幼虫都直接穿过根冠后方的根茎根茎，并到达靠近血管元件的石碑。在Catuuamarelo根中，充当饲养位点的细胞增加了其合成活性，并变成了多核细胞。在接种了Exigua的根的细胞中观察到的核活性和密集的细胞质表明咖啡植物易感。巨型支原体饲喂的幼苗细胞内壁表面退缩和变粗糙，存在大量寄生虫

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