1 GS/GOGAT循环 植物体内的N H4+有多种来源,一部分来自根通过细胞质膜上的专一性转运子吸收的N H4+与NO3-[1～3],其中N O3-由体内细胞质硝酸还原酶(N R)还原为N O2-,再由质体中的亚硝酸还原酶(N iR)将进入质体的NO2-还原为NH4+;另一部分来自光呼吸、根瘤菌固N作用、氨基酸代谢、类苯基丙烷代谢、衰老...
时,GS和GOGAT是同时起作用的,因而 该途径被称为GS/GOGAT循环(图1)。GDH对GS/GOGAT循环起辅助作用 7,8 。当植物发芽、衰老及 种子形成时,GDH可催化谷氨酸脱氨,使NH3进入GS/GOGAT循环而得以再利用。 图1高等植物体内同化氨的GS/GOGAT循环 Fig11TheGS/GOGATcycleinhigherplants (GS2谷氨酰胺合成酶;GOGAT2谷氨酸...
GS/GOGAT cycle.Alejandro, TorresSánchezJesús, GómezGardeñesFernando, Falo
英文: GENERALIZED STEINER SYSTEMS GS(,,v,) FOR v=·~s+中文: v=·~s+时广义斯坦纳系GS(,,v,)的存在性 英文: GS: How would you go about tackling Asia then?中文: 你想要为亚洲人做点什么游戏?英文: Research advances on GS/GOGAT cycle in higher plants中文: 高等植物GS/GOGAT循环研究进展 ...
Mo LY, Wu LH, Tao QN (2001) Research advances on GS/GOGAT cycle in higher plants. Plant Nutrition and Fertilizer Science 7:223–231 Google Scholar Ortego J, Bonal R, Muoz A (2004) Accumulation of astaxanthin in flagellated cells of Haematococcus pluvialis—cultural and regulatory aspects. ...
To better underst a nd the regulatory mechanisms of the GS/GOGAT cycle is essential to adequately ap ply nitrogen fertilizer and improve plant nitrogen use efficiency.%高等植物体内95%以上的NH4+通过GS/GOGAT(谷氨酰胺合成酶/谷氨酸合成酶)循环同化.GS,GOGAT在植物叶片,根瘤以及根中均有分布,但在不同...
高等植物GS/GOGAT循环研究进展莫良玉,吴良欢,陶勤南(浙江大学环境与资源学院,浙江杭州310029)摘要:高等植物体内95%以上的NH4+通过GS/GOGAT(谷氨酰胺合成酶/谷氨酸合成酶)循环同化。GS、GOGAT在植物叶片、根瘤以及根中均有分布,但在不同器官中GS/GOGAT循环的作用不尽相同。在绿色组织中,GS/GOGAT循环的主要作用是同化...
分析GOGAT与GS协同变化作用.结果表明,重氮乙酰丝氨酸处理后,GOGAT酶活性在6 h时开始被抑制.GS活性在9 h时开始被抑制;GOGAT的mRNA表达量于6 h时开始下调, GS1的mRNA表达量在2 h时开始下调,而GS2的mRNA表达量于9 h时开始下调,甜菜叶片NH4+的同化以GS2/GOGAT为主.%GS/GOGAT cycle is the main assimilation ...
[Objective] Glutamine synthetase (GS) is a key enzyme in the GS-GOGAT cycle of nitrogen metabolism. This work is aimed to investigate the family members of GS in soybean and the response to external stress. [Method] Based on bioinformatics methods, we comprehe...
Our results indicate mitochondrial TRX mutants have higher metabolic fluxes from the TCA to the GS/GOGAT cycle in vivo , likely associated to an increased substrate availability and by direct-and-indirect TRX-mediated mechanisms that regulate enzymes of both TCA and GS/GOGAT cycles.Souza Paulo V ...