【摘要】 线虫(Meloidogyne hapla Chitwood)的幼虫,在进入番茄的幼根以后,刺激分生组织的细胞,形成巨形细胞。这种巨形胞的产生,由於单个细胞的增大,其中经过多次的有丝分裂,形成多核,及细胞核的融合。在初期的时候,邻近细胞的融合,亦很普遍。在巨形细胞的形成后期,细胞核的融合变成十分明显。巨形细胞中的细胞核分裂,起初是相当一致,但以后逐渐不规划,而成各种畸变。虽然巨形细胞的初期常是一种薄壁细胞,不过成熟后,在初生壁上有具有单纹孔的不完全次生壁。这种残存的次生壁,却没有正常木质化。更多还原

【Abstract】 The larvae of Meloidogyne hapla Chitwood, after entering the tomato root, stimulated the formation of giant cells. These were formed by the enlargement of single cells in which multiple divisions and fusions of nuclei occurred, although coalescence of adjacent cells in early stages of infesta- tion likewise participated in the formation of giant cells. In a later stage, the nuclear-fusion like phenomena became very prominent. Nuclear divi- sions were at first uniform but soon led to irregular nuclear divisions. Although the giant cell characteristically was thin-walled, it might form an irregularly thickened secondary wall with simple pits and without lignifica- tion,更多还原