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壳聚糖对不结球白菜叶片氮代谢关键酶的调节作用 被引量:8
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作者 陈惠萍 徐朗莱 《热带作物学报》 CSCD 2003年第4期62-66,共5页
研究了壳聚糖(chitosan)对氮代谢关键酶[谷氨酰胺合成酶(GS)、谷氨酸合酶(GOGAT)和谷氨酸脱氢酶(GDH)]和可溶性蛋白质含量的影响。结果表明:0.8mg·mL^(-1)壳聚糖溶液喷洒不结球白菜叶片后,GS对NH_4^+的K_M值增大,而GDH对NH_4^+的K_... 研究了壳聚糖(chitosan)对氮代谢关键酶[谷氨酰胺合成酶(GS)、谷氨酸合酶(GOGAT)和谷氨酸脱氢酶(GDH)]和可溶性蛋白质含量的影响。结果表明:0.8mg·mL^(-1)壳聚糖溶液喷洒不结球白菜叶片后,GS对NH_4^+的K_M值增大,而GDH对NH_4^+的K_M值变小;在酶活性检测中,GS比活性受到了抑制,而GDH比活性则被提高,GOGAT比活性则表现为先上升后下降;削弱了不结球白菜叶片中的氨同化过程的GS-GOGAT途径,加强了GDH途径;同时,提高了叶片可溶性蛋白含量。 展开更多
关键词 壳聚糖 氮代谢关键酶 可溶性蛋白质 白菜叶片 酶活性 谷氨酰胺合成酶 谷氨酸合酶 谷氨酸脱氢酶 GS GoGAT GDH
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Molecular characters and morphological genetics of CAL gene in Chinese cabbage 被引量:5
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作者 LI XIAO FANG RUI JUAN SHEN +2 位作者 PING LIN LIU ZHANG CHENG TANG YU KE HE (Shanghai Institute of Plant Physiology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032) 《Cell Research》 SCIE CAS CSCD 2000年第1期29-38,共10页
BcpCAL, the homologous gene of CAL, was isolated from Chinese cabbage. Unlike bobcat of cauliflower, BcpCAL did not hold the terminating mutation in the fifth e-con. After crosses of cauliflower with Chinese cabbage, ... BcpCAL, the homologous gene of CAL, was isolated from Chinese cabbage. Unlike bobcat of cauliflower, BcpCAL did not hold the terminating mutation in the fifth e-con. After crosses of cauliflower with Chinese cabbage, the resultant hybrids failed to form curd, which implicates the genetic complement of BcpCAL to the mutated Bob- CAL in the function of curd formation. One of CAL gene isolated from the hybrid apparently comes from the female parent (Chinese cabbage) even though there are a few of the biases substituted and deleted. The result offers the molecular and genetic evidences for the Study of biological function of CAL in morphological genetics of curd. 展开更多
关键词 CAL gene CURD Chinese cabbage hybrid.
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