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唐佩华, 赵京, 苏秀珍, 姜华, 姜在阶. 莲子叶叶肉细胞液泡的类型、来源与发育[J]. 水生生物学报, 1991, 15(2): 110-118.
引用本文: 唐佩华, 赵京, 苏秀珍, 姜华, 姜在阶. 莲子叶叶肉细胞液泡的类型、来源与发育[J]. 水生生物学报, 1991, 15(2): 110-118.
Tang Peihua, Zhao Jing, Su Xiuzhen, Jiang Hua, Jiang Zaijie. TYPES SOURCES AND DEVELOPING PATTERNS OF VACUOLES IN MESOPHYLLOUS CELLS OF NELUMBO NUCIFERA GAERTN[J]. ACTA HYDROBIOLOGICA SINICA, 1991, 15(2): 110-118.
Citation: Tang Peihua, Zhao Jing, Su Xiuzhen, Jiang Hua, Jiang Zaijie. TYPES SOURCES AND DEVELOPING PATTERNS OF VACUOLES IN MESOPHYLLOUS CELLS OF NELUMBO NUCIFERA GAERTN[J]. ACTA HYDROBIOLOGICA SINICA, 1991, 15(2): 110-118.

莲子叶叶肉细胞液泡的类型、来源与发育

TYPES SOURCES AND DEVELOPING PATTERNS OF VACUOLES IN MESOPHYLLOUS CELLS OF NELUMBO NUCIFERA GAERTN

  • 摘要: 莲(Nelumbo nucifera Gaertn)子叶发育期间叶肉细胞液泡系变化巨大。发育阶段Ⅰ时,液泡系为具一些单个小液泡的分生细胞型。1-2天后,进入发育阶段Ⅱ,这时中央大液泡形成,液泡系转变为分化细胞型。细胞质和液泡中出现大量小液泡。新液泡的来源和发育是多样的:可由(1)核外膜起泡、断落、扩大形成;(2)高尔基体端部膨大、断落、扩大形成;(3)管状粗糙型内质网任意部位出芽或端部膨大,脱掉核糖体,断落、变形形成;(4)质膜内陷,吞并部分细胞质或营养液形成;(5)中央液泡被原生质丝分割等方式形成。在发育阶段Ⅱ和Ⅲ期间新生液泡大分小合,形成许多平均直径为0.4-1.2μm,形态各异的液泡群。它们各自发育成溶酶体、圆球体、微体、壁旁体、自体吞噬泡和胞饮液泡等。在后继发育中,一些液泡转变为蛋白体和脂肪体。本章论证了莲子叶的液泡系具有同双子叶植物子叶液泡系相似的结构与功能。

     

    Abstract: During the development of cotyledons,the vacuome in mesophyllous cells undergoes dras- tic changes both in morphology and structure.In developmental stage I,vacuome appears in the meristematic type with several small single vacuoles.1-2 days later,as soon as the central vacuole started to form,the whole vacuome started to transform into differentiated type.Then many new small vacuoles appeared in cytoplasm and bigger vacuoles.The sources and the de- veloping patterns of vacuoles of N.nucifera are diverse and tonoplasts may be formed through: (1)vacuolization and release of the swollen part of the outlayer of nuclear membrane;(2)re- lease and enlargement of the swollen end of dictyosome;(3) budding of tube-like endoplasmic reticulum or release of its swollen end,loss of ribosomes and deformation;(4) invagination of plasmalemma and pinocytosis of a small part of cytoplasm or a drop of vegetative liquid; and (5) division of the center vacuole with boundles of cytoplasm into several-small parts. During developmetal stage Ⅱ and Ⅲ,the bigger vacuoles divided into smaller ones and the smaller vacuoles fused with each other again.Finally,many vacuole groups with diameters averaging 0.4-1.2 milli micron were formed.They developed in various patterns into lyso- somes,spherosomes,microsomes,paramural bodies,autophagic vacuoles,pinocytic vesicles and so on.Some vacuoles later developed into protein bodies and lipid bodies.The article proved that the structure and function of vacuome in cytoledon cells of lotus are similar to those in cytoledon cells of other dicotyledons.

     

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