刘林;

• 1:临沂大学生命科学学院

摘要(Abstract)：

【目的】果实韧皮部胞间连丝分布特点决定韧皮部同化物卸载途径类型,为了解‘富有’柿果实膨大期韧皮部胞间连丝分布特点,【方法】采用透射电子显微技术对膨大期果实韧皮部做超微结构研究,统计不同类型细胞界面上胞间连丝发生频率。【结果】结果表明,柿果实维管束没有维管束鞘,直接与果肉细胞连接,韧皮部由筛管分子、伴胞和维管薄壁细胞构成,筛管-伴胞界面、伴胞-维管薄壁细胞界面、维管薄壁细胞-维管薄壁细胞界面以及维管薄壁细胞-果肉细胞界面上都存在胞间连丝,伴胞-维管薄壁细胞界面上的胞间连丝发生频率约为维管薄壁细胞-果肉细胞界面上的一半。【结论】据此认为,‘富有’柿果实韧皮部伴胞与维管薄壁细胞界面上分布有中等数量的胞间连丝,显示韧皮部卸载途径为共质体类型。

关键词(KeyWords)： ‘富有’柿;果实;韧皮部;胞间连丝;超微结构

Abstract:

Keywords:

基金项目(Foundation): 临沂大学科研基金(HX09104);; 临沂市科技局计划项目(200101);; 山东省教育厅科研计划项目(J01H51);; 山东省自然科学基金(ZR2011CL002)

作者(Authors): 刘林;

DOI: 10.13925/j.cnki.gsxb.2012.05.030

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