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| 蓝光和Ca对小麦幼苗谷氨酸合成酶及钙调系统酶活性的影响 | |
| 引用本文： | 段远霖,李合生,伍素辉,杨泽敏.蓝光和Ca对小麦幼苗谷氨酸合成酶及钙调系统酶活性的影响[J].福建农林大学学报(自然科学版),2003,32(2):209-212. |
| 作者姓名： | 段远霖 李合生 伍素辉 杨泽敏 |
| 作者单位： | 1. 福建农林大学作物遗传育种研究所,福建,福州,350002 2. 华中农业大学农学系,湖北,武汉,430070 3. 华中农业大学资源环境与农业化学系,湖北,武汉,430070 |
| 基金项目： | 国家自然科学基金资助项目(39670432). |
| 摘 要： | 小麦黄化苗和绿苗经短时间蓝光照射,谷氨酸合成酶(GOGAT)活性明显增强,Ca能显著增强GOGAT活性.蓝光对小麦NO-3代谢过程中GOGAT活性的影响与细胞内钙调系统及其作用靶酶——Ca2+-ATPase、H+-ATPase活性密切相关,这表明钙信号系统可能参与了蓝光信号受体——隐花色素(cryptochrome)相关联的光敏感途径,从而调节植物NO-3代谢过程.小麦黄化苗和绿苗的蓝光受体可能不同. |
| 关 键 词： | 小麦幼苗 蓝光 谷氨酸合成酶 CaM Ca2+-ATPase H+-ATPase |
| 文章编号： | 1006-7817(2003)02-0209-04 |
| 修稿时间： | 2002年1月18日 |
Effects of blue-light and calcium on the activities of glutamate synthetase and enzymes belonging to calcium signal systems in seedlings of wheat |
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| Abstract: | Treatment with short duration of blue light and calcium obviously enhanced the activity of glutamate synthetase (GOGAT) in etiolated and green seedlings of wheat. The effect of blue light on the activity of GOGAT in the process of NO-3 metabolism of wheat was closely related to Ca2+, CaM and their target enzymes, Ca2+ ATPase and H+ ATPase, which suggested that calcium signal systems had taken part in light sensing pathway associated with blue light photoreceptor-Crytochrome, as a result, regulated NO-3 metabolism of plant, and that there were different blue light photoreceptors existed in fully etiolated and green seedlings of wheat. |
| Keywords: | seedling of wheat blue light glutamate synthetase CaM Ca~(2+)-ATPase H~+-ATPase |
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