亚热带植物科学 ›› 2008, Vol. 37 ›› Issue (04): 12-14,21.

• 研究报告 • 上一篇    下一篇

美丽异木棉光合相关酶活性季节性变化

吴吉林1,3,李永华2,叶庆生3,唐克华1   

  1. 1. 吉首大学 城乡资源与规划学院, 湖南 张家界 427000;
    2. 河南农业大学 林学园艺学院, 河南 郑州 450002;
    3. 华南师范大学 生命科学学院, 广东 广州 510631
  • 收稿日期:2008-05-04 出版日期:2008-11-10 发布日期:2008-11-10
  • 作者简介:吴吉林(1978-),男,湖南涟源人,讲师,硕士,从事植物生理生化研究。
  • 基金资助:

    广东省自然科学基金团队项目(003062);广东省重点科技攻关项目(2002C20120);广东省自然科学基金重点项目(04105806)

Seasonal Variation of GO and RuBPC Carboxylase Activities in Chorisia speciosa

WU Ji-lin1,3, LI Yong-hua2, YE Qing-sheng3, TANG Ke-hua1   

  1. 1. College of Resources and Planning Sciences, Jishou University, Zhangjiajie 427000, Hunan China;
    2. College of Forestry and Horticulture, Henan Agricultural University, Zhengzhou 450002, Henan China;
    3. College of life science, South China Normal University, Guangzhou 510631, Guangdong China
  • Received:2008-05-04 Online:2008-11-10 Published:2008-11-10

摘要: 对美丽异木棉叶片叶绿素含量与乙醇酸氧化酶(GO)、核酮糖二磷酸羧化酶(RuBPCase)活性的季节变化进行测定。结果表明:叶片Chla、Chlb和Chl (a+b)含量的峰值均出现在7月;叶片GO活性季节变化为单峰型曲线,8月最高(252 nmol/mg·min);RuBPCase活性季节变化为双峰曲线,6月和9月各有一峰值,分别为275 nmol/mg·min和248 nmol/mg·min,8月出现低谷;叶绿素含量和酶活性受光合有效辐射(PAR)与气温(Tair)的影响较大。

关键词: 美丽异木棉, 叶绿素, 乙醇酸氧化酶, 核酮糖二磷酸羧化酶, 季节变化

Abstract: Seasonal variations of chlorophyll, the activities of glycolate oxidase (GO) and RuBPC carboxylase (RuBPCase) in Chorisia speciosa leaves were studied.The results were as follows.The concentrations of Chla、Chlb and Chl (a+b) changed from May to December, and reached their high peak on July;Seasonal variation in the activity of RuBPcase was a bimodal curve and had two peaks in June and September, the peaks were about 275 nmol/mg·min and 248 nmol/mg·min, respectively, and there was a low valley in August;Seasonal variation in the activity of GO was different to RuBPcase, its peak came in August and reached about 252 nmol/mg·min.Seasonal variations of PAR and Tair were important to chlorophyll and the activity of GO, and had a significantly relationship with them.

Key words: Chorisia speciosa, chlorophyll, glycolate oxidase, RuBPCase, seasonal variation

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