xanthophyll 中文意思是什麼
xanthophyll
解釋
n. 名詞 【植物;植物學】黃色素,葉黃素。-
Lutein ( xanthophyll ) from the marigold flower, is a potent antioxidant that assists in general well - being
由金盞花萃取的葉黃素,是一種具有效益的抗氧化物,能夠幫助身體體的健康。 -
Still others have searched the world over for berries, flowers or leaves of high xanthophyll content.
還有其他人在世界各地尋找含有大量葉黃素的漿果、花或葉。 -
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
本論文從水稻和菠菜中克隆了編碼vde酶的基因,並通過轉基因植物進一步研究了葉黃素循環在熱耗散方面的作用,主要獲得了以下結果:首次從兩個水稻亞種(秈稻和粳稻)中克隆了rvde基因(分別命名為irvde和jrvde )的全長cdna序列,分別長1647bp和1887bp ,兩者開放閱讀框的同源性為98 ,與其它已知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
吸收光譜差值a _ ( 502 - 540 )隨反應的進行逐漸增大,反應體系總色素的hplc分析表明, v逐漸降低,而z剛好相反,說明表達的蛋白具有與活體vde酶相同的功能,能在體外將v轉變為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,還建立了一種適合於篩選轉基因植株的dna微量提取法,此方法操作快捷方便,一個人在一天內能制備50多個樣品, 100mg的植物鮮樣平均可獲得40卜g的dna ,提取的dna可直接用於pcr反應、酶切分析及southern分析。
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