华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 138-140. doi: 10.7668/hbnxb.2008.01.030

所属专题: 水稻

• 论文 • 上一篇    下一篇

重金属铊对水稻种子及植株生长的作用

姚焱1, 张平2, 陈翔云1, 陈劲1, 吴婷1, 陈永亨2   

  1. 1. 广州大学 生命科学学院, 广东 广州 510006;
    2. 广州大学 环境科学与工程学院, 广东 广州 510006
  • 收稿日期:2007-11-25 出版日期:2008-02-28
  • 作者简介:姚焱(1972-),女,河南开封人,副教授,博士,主要从事遗传育种及环境毒理研究。
  • 基金资助:
    国家自然科学基金委-广东省人民政府联合基金(U0633001);国家自然科学基金(20477007);广州市属高校科技项目(62066);广州市科技计划项目(2004J1-C0331)

Effects of Thallium on Seed Germination and Plant Growth of Oryza sativa L.

YAO Yan1, ZHANG Ping2, CHEN Xiang-yun1, CHEN Jin1, WU Ting1, CHEN Yong-heng2   

  1. 1. College of Life Science, Guangzhou University, Guangzhou 510006, China;
    2. College of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
  • Received:2007-11-25 Published:2008-02-28

摘要: 研究重金属铊对水稻种子萌发、根系生长、植株叶绿素及可溶性糖含量的影响。结果表明:铊在0.1~10.0mg/L浓度范围内,水稻种子均可萌发,但幼苗的胚根和胚轴生长受到显著抑制,5.0 mg/L为苗期抑制的有效临界浓度。植株叶绿素在营养生长和生殖生长期均受到铊的抑制,铊对叶绿素b含量的抑制能力大于叶绿素a。可溶性糖含量在叶和根中表现不同程度的下降。

关键词: 铊, 水稻, 种子萌发, 生长, 生理

Abstract: The effects of Thallium on the seed germination, root growth, content changes of chlorophyll and solublesugar of rice(Oryza sativa L.)were studied.The results showed that the concentration of Thallium at 0110~ 1010mg/Lhad no remarkable influence on seed germination of rice, but the length of radicle and embryonal axis were significantlydepressed at 510 mg/L which was the effect threshold concentration of thallium.The content of chlorophyll in leaveswasrestrained during the different growth period,meanwhile the decrease of chlorophyll b wasmore than that of chlorophyll a.At the same time, the content of soluble sugar in roots and leaves declined at different degree.

Key words: Thallium, Rice(Oryza sativa L.), Seed germination, Growth, Physiology

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引用本文

姚焱, 张平, 陈翔云, 陈劲, 吴婷, 陈永亨. 重金属铊对水稻种子及植株生长的作用[J]. 华北农学报, 2008, 23(1): 138-140. doi: 10.7668/hbnxb.2008.01.030.

YAO Yan, ZHANG Ping, CHEN Xiang-yun, CHEN Jin, WU Ting, CHEN Yong-heng. Effects of Thallium on Seed Germination and Plant Growth of Oryza sativa L.[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 138-140. doi: 10.7668/hbnxb.2008.01.030.

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