落葵薯粘液细胞分布及发育的解剖学研究
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Anatomical Studies on the Distribution and Development of Mucilage Cells in Anredera cordifolia
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    摘要:

    采用石蜡切片法对落葵薯(Anredera cordifolia (Tenore) Steenis)粘液细胞的分布及发育进行了研究。结果表明,粘液细胞普遍存在于落葵薯的茎、叶、叶柄中,粘液细胞单个散生分布于茎的髓及皮层组织中;叶的栅栏组织和海绵组织中都可见粘液细胞,且海绵组织中的数量明显多于栅栏组织中的;叶柄中的粘液细胞不多,主要分布在维管束四周的皮层组织中。粘液细胞的发育分为4个阶段:原始细胞阶段、液泡化阶段、成熟阶段和细胞质解体阶段。粘液细胞最早出现于第六叶原基,且其发育与茎、叶器官的组织分化不同步。

    Abstract:

    The distribution and development of mucilage cells of Anredera cordifolia (Tenore) Steenis were studied by using paraffin sectioning. The results showed that mucilage cells generally exist in stem, leaf and leaf stalk of A. cordifolia. They scattered single in the pith and cortex of stem, and existed in both palisade tissue and spongy tissue of leaf, which spongy tissue had more mucilage cells than palisade tissue. There was a few mucilage cells in leaf stalk distributed in cortexes around of vascular bundles. The development of mucilage cells could be divided into 4 stages, such as initial cell stage, vacuolation stage, mature stage, and disintegration stage. The mucilage cell originated in the sixth leaf primordium, and the development of mucilage cells are not synchronized to that of stem and leaf.

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纪光欣,谭玲玲,初庆刚.落葵薯粘液细胞分布及发育的解剖学研究[J].热带亚热带植物学报,2010,18(6):655~660

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  • 收稿日期:2009-12-03
  • 最后修改日期:2010-07-26
  • 录用日期:2010-09-06
  • 在线发布日期: 2010-12-01
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