| 不同氮量与氮源下烤烟淀粉酶和转化酶活性动态变化 |
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| 引用本文： | 史宏志 杨春英. 不同氮量与氮源下烤烟淀粉酶和转化酶活性动态变化[J]. 中国烟草科学, 1999, 20(3): 5-8 |
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| 作者姓名： | 史宏志 杨春英 |
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| 作者单位： | 河南农业大学!郑州450002(史宏志，韩锦峰，赵鹏)，河南省农业科学院(杨春英) |
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| 摘 要： | 研究结果表明，在烟叶生长成熟过程中，烟叶中淀粉酶活性变化呈双峰曲线，峰值分别出现在叶片功能盛期和成熟期。在烟叶成熟期以前淀粉酶活性与施氮量呈正相关，成熟期则呈负相关。转化酶活性在叶片功能盛期后逐渐降低，随着施氮水平的提高，转化酶活性提高。
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| 关 键 词： | 烤烟 淀粉酶 转化酶 碳氮代谢 |
Studies on the dynamic changes in amylase and invertase activity in flue cured tobacco as affected by nitrogen level and source |
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| Shi Hongzhi Han Jinfeng Zhao Peng. Studies on the dynamic changes in amylase and invertase activity in flue cured tobacco as affected by nitrogen level and source[J]. Chinese Tobacco Science, 1999, 20(3): 5-8 |
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| Authors: | Shi Hongzhi Han Jinfeng Zhao Peng |
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| Affiliation: | Shi Hongzhi Han Jinfeng Zhao Peng (Henan Agricultural University Zhengzhou 450002) Yang Chunying (Henan Academy of Agricultural Sciences) |
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| Abstract: | The results indicated that during the process of leaf growth and maturing,the changing model of amylase activity was a double peak curve with the peaks appearing at leaf full functioning period and ripening period. The amylase activity was positively correlated to nitrogen level before ripening,but when entering maturing stage,the negative correlation existed. The activity of invertase ,which was related to photosynthesis and invert metabolism, decreased gradually after leaf full functioning stage. As nitrogen level increased, the activity of invertase was enhanced. |
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| Keywords: | Flue cured tobacco Amylase Invertase Carbon and nitrogen metabolism |
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