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植物研究 ›› 2002, Vol. 22 ›› Issue (1): 30-32.

• 论文 • 上一篇    下一篇

荞麦子叶发育过程中聚合的粗糙内质网

高新起, 王秀玲   

  1. 曲阜师范大学生物系, 曲阜 273165
  • 收稿日期:2001-03-21 出版日期:2002-03-15 发布日期:2016-06-14
  • 作者简介:高新起(1972-),男,硕士研究生,主要从事植物发育生物学。

THE AGGREGATE ROUGH ENDOPLASMIC RETICULA IN COTYLEDON DURING THE DEVELOPMENT OF BUCKWHEAT EMBRYO

GAO Xin-qi, WANG Xiu-ling   

  1. Department of Biology, Qufu Normal University, Qufu 273165
  • Received:2001-03-21 Online:2002-03-15 Published:2016-06-14

摘要: 在荞麦(Fagopyrum esculentum Moench.)子叶的发育过程中观察到粗糙内质网的聚合现象,是一些粗糙内质网平行或成环形排列形成的。这些聚合的粗糙内质网附近通常有蛋白质团块存在,其形状不规则,无膜包被,与周围细胞质的界限不清。推测这些蛋白质团块不是在液泡或膨大的粗糙内质网囊泡中积累形成的,而是由聚合的粗糙内质网直接将合成的蛋白质分泌到细胞质中形成的。这种形式提高了子叶中贮存蛋白质的积累效率。

关键词: 荞麦, 子叶, 粗糙内质网, 蛋白质

Abstract: During the development of buckwheat(Fagopyrum esculentum Moench.) embryo, the aggregate rough endoplasmic reticula(rER) that are bundles or rings rER are observed in the cotyledon cells. We don't think that the appearance of the aggregate rER is the reaction of cotyledon cell to stress condition. Usually, there are some protein lumps beside the aggregate rER. These lumps are not formed in vacuoles or dilated vesicles of rER because they are irregular in shape and not surrounded by membrane. These observations indicate that the aggregate rER can synthesize and transport protein into cytoplasm and accumulate in cytoplasm. Obviously, the efficiency of accumulating storage protein by this way is higher than that of single-stranded rER.

Key words: Fagopyrum esculentum, cotyledon, rER, protein