xanthophyll中文什么意思

发音:

用"xanthophyll"造句

n.
【植物；植物学】黄色素，叶黄素。

xanthophyll oleoresin: 叶黄素浸膏
xanthophyll pigments: 叶素色素
xanthophyll; lutein; phylloxanthine: 叶黄素

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例句与用法

The ps ii native fractions ( 20 % and 30 % ) were loaded onto a deae column . the fraction eluted with 150 mm nacl was presented dcip reduction activity and was highly depleted in chi c and xanthophylls , and as such could be considered a ps ii core complex
对于有dcip光还原活性的20和30层带的复合物，进一步deae离子交换层析纯化。 150mmnacl洗脱纯化后的样品经过荧光激发光谱测定发现，已经去除了叶绿素c和墨角藻黄素，并且仍然具有dcip的光活性，分析是ps核心复合物。
It will provide us to further study the function of xanthophyll cycle in photoprotection . the major results are as following : two cdna sequences encoding violaxanthin de - epoxidase were cloned from japonica rice ( jrvde ) and indica rice ( irvde ) with the full - length of 1887bp and 1647bp , respectively . the homology of the open reading frame is 98 % identity between two rvde genes , and more than 60 % identities with those of other species
本论文从水稻和菠菜中克隆了编码vde酶的基因，并通过转基因植物进一步研究了叶黄素循环在热耗散方面的作用，主要获得了以下结果：首次从两个水稻亚种(籼稻和粳稻)中克隆了rvde基因(分别命名为irvde和jrvde )的全长cdna序列，分别长1647bp和1887bp ，两者开放阅读框的同源性为98 ，与其它已知vde基因的同源性在60以上。
The expression quantity increased with the induction time by iptg , and accounted for 25 percent of the total proteins after 4 - hour induction . absorption spectrum together with xanthophyll pigments quantification by hplc demonstrated that the expressed vde has its enzyme activity , which can de - epoxidate v into a and z in vitro
吸收光谱差值a _ ( 502 - 540 )随反应的进行逐渐增大，反应体系总色素的hplc分析表明， v逐渐降低，而z刚好相反，说明表达的蛋白具有与活体vde酶相同的功能，能在体外将v转变为a和z 。
These results demonstrate that the heat dissipation ability in the transgenic plants decreases , suggesting that xanthophyll cycle has the function in photoprotection . besides , a dna minipreparation method suitable for screening and identification large amounts of transgenic plants was established . using this rapid and efficient method , one person can prepare d
另外，还建立了一种适合于筛选转基因植株的dna微量提取法，此方法操作快捷方便，一个人在一天内能制备50多个样品， 100mg的植物鲜样平均可获得40卜g的dna ，提取的dna可直接用于pcr反应、酶切分析及southern分析。
Xanthophyli cycle has been widely concerned since the finding that it has the function in heat dissipation . with the trans - thylakoid ph gradient , zeaxanthin ( z ) together with antheraxanthin ( a ) can absorb excess energy from chlorophyll and release it as heat , thus protect the photosynthetic apparatus from photodamage by high light . violaxathin de - epoxidase ( vde ) is the key enzyme in xanthophylls cycle
目前普遍认为叶黄素循环的色素定位于天线色素蛋白复合体上，在跨膜质子梯度( ph )形成后，玉米黄质( z )和环氧玉米黄质( a )能够从叶绿素中吸收过多的激发能，并以热能的形式耗散到体外，从而保护光合器官免受强光的破坏。