1) pheophorbide a monooxygenase
脱镁叶绿酸a单加氧酶
1.
The pheophorbide a monooxygenase (PaO) is the key enzyme in the oxygenolytic cleavage of the macrocyclic porphyrin ring of chlorophyll to form linear tetrapyrrole derivative.
近年来叶绿素降解的分子调控机制颇受关注,脱镁叶绿酸a单加氧酶(PaO)作为催化叶绿素卟啉环开环成为四元线性吡咯衍生物的关键酶,成为研究的焦点。
2) pheophorbide a oxygenase
脱镁叶绿(甲酯)酸加氧酶
1.
There are two parts in this study:the first part is the clone ofpheophorbide a oxygenase(PaO) gene from wheat spike of photoperiod-and/or temperature sensitive male sterility wheat line BS210 based on RT-PCR and TAIL-PCR techniques and the expression profiles of PaO gene was analyzed in spike tissues of BS210 line cultivated in different fertile conditions.
本研究克隆2个基因,分别是小麦脱镁叶绿(甲酯)酸加氧酶(pheophorbide a oxygenase,PaO)基因和Ca~(2+) -ATPase基因,应用RT-PCR结合TAIL-PCR技术克隆PaO基因的cDNA全长,并利用半定量RT-PCR研究了该基因在小麦光温敏雄性不育系BS210穗部不同育性生长期的表达特性,并构建了植物表达载体(双子叶植物和单子叶植物)。
3) pheophorbide
[,fi:əu'fɔ:baid]
脱镁叶绿酸
1.
From methyl pheophorbide-a (MPa, 1), the pheophorbide-a derivative substituted with hydro- pyrazol 2 was obtained by the 1,3-dipolar cycloaddition of vinyl group at 3-position with diazomethane.
以脱镁叶绿酸-a甲酯(1)为起始原料,利用其3-位乙烯基与重氮甲烷的1,3-偶极环加成反应,得到3-位氢化吡唑取代的脱镁叶绿酸-a衍生物2,通过热裂解使得3-位吡唑基开环并重排成环丙基。
4) Phaeopigments
脱镁叶绿酸
1.
In order to get the benthic microalgae status in intertidal sediments,the contents of chlorophyll-a andphaeopigments in the sediments of the intertidal zone of Qingdao Bay were investigated from October 2003 to April 2004.
为了解潮间带沉积物中底栖微藻的现存状况,于2003年10月至2004年4月,分4次测定分析了青岛湾潮间带沉积物中的叶绿素a和脱镁叶绿酸含量。
2.
The content and distribution of chlorophyll a (chl a) and phaeopigments (pha a) in the sediments of the East China Sea and the Yellow Sea were investigated in October, 2000, and May, 2001.
研究了 2 0 0 0年 1 0月和 2 0 0 1年 5月东、黄海航次所采集的沉积物中叶绿素 a及其降解产物脱镁叶绿酸的含量与分布 ,比较了沉积物样品在不同氧化还原条件下培养后的叶绿素 a含量的变化。
5) pheophorbide a
脱镁叶绿酸a
1.
Determination of Phyllins Pheophorbide a of Bamboo leaves by HPLC;
HPLC法测定竹叶叶绿素衍生物脱镁叶绿酸a的含量
2.
In the present study, the results showed that, the pheophorbide a had the efficacy in repressing the growth of Staphylococcus aureus and the protoplast regeneration of Escherichia coli under light cultural condition, whereas it had little effect in the dark cultures.
以叶绿素为提取物,进行化学修饰得到光敏活性剂—脱镁叶绿酸a。
6) methyl pheophorbide-a
脱镁叶绿酸-a甲酯
1.
A series of novel purpurin-18 imide derivatives with long absorption wavelength were synthesized through Wittig reaction of methyl pheophorbide-a.
以脱镁叶绿酸-a甲酯为原料,通过对其3-位乙烯基的氧化,得到3-(2,2-二甲氧基乙基)-去乙烯基脱镁叶绿酸-a甲酯,经过甲酸处理得到3-(2-氧代乙基)-去乙烯基脱镁叶绿酸-a甲酯,选择适当的条件,通过Witting反应合成了对应的3-(2-取代乙基)-去乙烯基脱镁叶绿酸-a甲酯。
2.
Starting from methyl pheophorbide-a, 3-formyl substituted compound was synthesized through oxidation of its vinyl at 3-position.
以脱镁叶绿酸-a甲酯为原料,通过对其3-位乙烯基的氧化,得到了3-甲酰基脱镁叶绿酸甲酯,利用Wittig反应合成了对应的3-(2-取代的乙烯基)脱镁叶绿酸甲酯。
补充资料：单加氧酶
分子式：
CAS号：
性质：又称加单氧酶，羟化酶，羟氧酶。一类催化有机物分子直接加氧的酶。它催化一个氧原子参人底物，另一个氧原子被还原成水。酶反应需要还原型辅因子，如FAD、NADP、抗坏血酸、铜和铁及细胞色素C，所需辅因子随各种单加氧酶而异。单加氧酶参与体内不少重要物质的形成，与药物和毒物的代谢关系密切。
CAS号：
性质：又称加单氧酶，羟化酶，羟氧酶。一类催化有机物分子直接加氧的酶。它催化一个氧原子参人底物，另一个氧原子被还原成水。酶反应需要还原型辅因子，如FAD、NADP、抗坏血酸、铜和铁及细胞色素C，所需辅因子随各种单加氧酶而异。单加氧酶参与体内不少重要物质的形成，与药物和毒物的代谢关系密切。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条