广西植物2011，Vol.31Issue(3)：398-402,413,6.DOI:10.3969/j.issn.1000-3142.2011.05.022
高温对早籼稻花后剑叶氮代谢关键酶活性及籽粒蛋白质含量的影响
Effects of high temperature on key enzymes activity of nitrogen metabolism in flag leaf and protein content in grain after flowering of early-indica rice
摘要
Abstract
Estigate the effects of high temperature on key enzymes(GS and GOGAT)activity of nitrogen metabolism in flag leaf and protein content after flowering in two different early indica rice, high temperature(31.5 C)and optimal temperature(23.5 ℃)are treated to two different type early indica rice(Xiangzaoxian 24 and Zhuliangyou 611).The results showed that the GS and GOGAT activity were highest on 10 d under high temperature treatment and were slowly decreased under optimal temperature treatment. Activity of two kinds of key enzyme in Xiangzaoxian 24 were both higher than that in Zhuliangyou 611. Compared to optimal temperature treatment in Xiangzaoxian 24 under high temperature,the protein content was 4.75 mg higher on 22 d and 1.88mg higher for Zhuliangyou 611. These results suggest that high temperature can help to improve two early indica rice(especial the Xiangzaoxian 24)the GS and GOGAT activity in flag leaf and grain protein content.关键词
水稻/温度/可溶性蛋白质/谷氨酰胺合成酶/谷氨酸合成酶Key words
rice/ temperature/ soluble protein/ Glutamine synthetase(GS)/ Glutamate synthase(GOGAT)分类
农业科技引用本文复制引用
郝小花,肖辉海,王文龙,王云,李丽..高温对早籼稻花后剑叶氮代谢关键酶活性及籽粒蛋白质含量的影响[J].广西植物,2011,31(3):398-402,413,6.基金项目
湖南省教育厅重点项目(09A066) （09A066）
湖南省自然科学基金(07JJ6032) （07JJ6032）
湖南文理学院基金(JJYB0915) （JJYB0915）
