| 不同优质小麦子粒淀粉积累动态及其酶活性变化 |
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| 引用本文： | 罗毅,姜玉梅,刘海英.不同优质小麦子粒淀粉积累动态及其酶活性变化[J].河南农业大学学报,2005,39(2):135-138. |
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| 作者姓名： | 罗毅 姜玉梅 刘海英 |
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| 作者单位： | 河南农业大学国家小麦工程技术研究中心,河南,郑州,450002 |
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| 摘 要： | 对2个优质小麦品种在整个灌浆期内子粒淀粉积累动态及其有关的酶活性变化进行了研究，结果表明，豫麦66号和豫麦49号旗叶中蔗糖磷酸合成酶(SPS)和子粒中蔗糖合成酶(SS)活性变化均呈单峰曲线，其峰值分别出现在花后20d和15d，豫麦66号的峰值出现较晚且持续时间较长，淀粉积累速率呈现同样的趋势，SS活性与淀粉积累速率呈极显著的正相关。
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| 关 键 词： | 优质小麦 淀粉 酶 积累动态 |
| 文章编号： | 1000-2340(2005)02-0135-04 |
Changes of Starch Accumulation and Enzymes in Starch Synthesis in the Kernel in Different Wheat Cultivars of High Quality |
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| LUO Yi,JIANG Yu-mei,LIU Hai-ying.Changes of Starch Accumulation and Enzymes in Starch Synthesis in the Kernel in Different Wheat Cultivars of High Quality[J].Journal of Henan Agricultural University,2005,39(2):135-138. |
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| Authors: | LUO Yi JIANG Yu-mei LIU Hai-ying |
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| Abstract: | Two wheat cultivars of high quality were used to study their starch accumulating developments and changes of activities of enzymes involved in the starch synthesis in the kernel during the whole grain filling stage. The main results were as follows: changes of SPS activity in flag leaf and SS activity in kernel of Yumai 66 and Yumai 49 all came to be a single-peak curve, its peaks appeared in 20 d and 15 d after anthesis, respectively. But the peak of Yumai 66 came a little later than that of Yumai 49, and it lasted longer. Starch accumulating rate had the same trend. It presented significant positive correlation (r=0.763 9~(**)) between SS activity and starch accumulating rate. |
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| Keywords: | high quality wheat starch enzyme accumulating development |
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