华北农学报 ›› 2005, Vol. 20 ›› Issue (3): 32-38. doi: 10.3321/j.issn:1000-7091.2005.03.009

所属专题: 水稻 生物技术

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旱作转BADH基因水稻茎的解剖结构特征与产量的关系

郭学民, 东方阳, 孙耀中, 杨晓玲, 刘永军, 李素红   

  1. 河北科技师范学院生命科学系, 河北昌黎 066600
  • 收稿日期:2005-02-07 出版日期:2005-06-28
  • 通讯作者: 东方阳
  • 作者简介:郭学民(1965- ),男,陕西潼关人,副教授,在读博士,主要从事植物学教学与研究工作。
  • 基金资助:
    河北省秦皇岛市科技局资助项目

The Relation Between Anatomical Structure Characteristics of Stem and Yield of Rice with BADH cDNA under Upland

GUO Xue-min, DONGFANG Yang, SUN Yao-zhong, YANG Xiao-ling, LIU Yong-jun, LI Su-hong   

  1. Deparement of Life Science, Heibei Normal University of Science & Technology, Changli 066600, China
  • Received:2005-02-07 Published:2005-06-28

摘要: 利用石蜡切片法研究和分析了5个水稻品系(种):52-7、51-15、51-22、中8、白珍珠茎的显微结构特征及其与产量的关系。结果表明,3个转BADH基因水稻品系表皮下和内、外圈维管束鞘的厚壁细胞层数及发育没有明显特征;各节间的基本组织细胞淀粉粒含量少的品系,产量较高;具有少维管束数性和小维管束性;各节间维管束总面积与茎壁组织面积的比值大于对照,但平均值小于白珍珠;BADH基因的表达,提高了转基因水稻品系体内甜菜碱的含量。含量较多的甜菜碱和发达的输导组织,有利于转BADH基因水稻品系在旱作条件下保持正常的新陈代谢、有机物的合成与转运以及高产的形成。

关键词: 转BADH基因水稻, 茎, 解剖结构特征, 产量

Abstract: The microstructure characteristics of stem in five rice strains (cultivars):52-7,51-15,51-22,Zhong8,and White pearl and the relation between the ones and the yield are observed and analyzed by the paraffin method. The results showed that layer number and development of collenchyma cell under epiderm and in vascular bundle sheath of outer circle and inner circle of rice with BADH cDNA have no distinctive features. The yield of the strain, which has less starch grains in ground tissue cells,is higher. Transgenic strains have the characteristics of micro-vascular bundle and little-vascular bundle. The ratio of total area of vascular bundle and area of stem wall in transgenic strains is bigger than that of control, but the average value is smaller than that of white pearl. The expression of BADH has enhanced the content of betaine in transgenic strains. More betaine and advanced conducting tissue are beneficial to the maintenance of normal metabolism, synthesization of photosynthate and formation of high yield under upland condition.

Key words: Rice with BADH cDNA, Stem, Anatomical structure characteristic, Yield

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引用本文

郭学民, 东方阳, 孙耀中, 杨晓玲, 刘永军, 李素红. 旱作转BADH基因水稻茎的解剖结构特征与产量的关系[J]. 华北农学报, 2005, 20(3): 32-38. doi: 10.3321/j.issn:1000-7091.2005.03.009.

GUO Xue-min, DONGFANG Yang, SUN Yao-zhong, YANG Xiao-ling, LIU Yong-jun, LI Su-hong. The Relation Between Anatomical Structure Characteristics of Stem and Yield of Rice with BADH cDNA under Upland[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(3): 32-38. doi: 10.3321/j.issn:1000-7091.2005.03.009.

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