xanthophylls 中文意思是什麼
xanthophylls
解釋
葉黃質-
There are over 600 known carotenoids ; they are split into two classes, xanthophylls and carotenes
有超過600種已知的類胡蘿卜素，可以分為兩類：葉黃素和胡蘿卜素。 -
Deng et al. ( 2000 ) found an obvious increase in carotenoids content in detached boea leaves during dehydration, indicating a protective role of xanthophylls cycle in dehydrated boea leaves
鄧馨等（ 2000 ）的研究結果發現牛耳草離體葉片在脫水過程中類胡蘿卜素的含量顯著增加，推測可能存在葉黃素循環的保護作用。 -
The physiological functions of some natural pigments were reviewed, some natural pigments such as carotenoid, xanthophylls, flavanones and anthocyanin were introduced on antioxidant activities, antibacterial activities and health protection
綜述了中藥色素的藥理作用，對類胡蘿卜素、黃酮類、花色苷類等色素的抗氧化活性、抗菌活性及保健功能作了簡要介紹。 -
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
對于有dcip光還原活性的20和30層帶的復合物，進一步deae離子交換層析純化。 150mmnacl洗脫純化后的樣品經過熒光激發光譜測定發現，已經去除了葉綠素c和墨角藻黃素，並且仍然具有dcip的光活性，分析是ps核心復合物。 -
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
目前普遍認為葉黃素循環的色素定位於天線色素蛋白復合體上，在跨膜質子梯度（ ph ）形成后，玉米黃質（ z ）和環氧玉米黃質（ a ）能夠從葉綠素中吸收過多的激發能，並以熱能的形式耗散到體外，從而保護光合器官免受強光的破壞。 -
The results of changes in photochemical activity parameters and chloroplast pigments in the present study indicated that xanthophylls cycle was induced in leaves of boea hygrometrica when they were dehydrated for 8 days under very weak light condition ( 3u mol. m - 2. s - 1 ), xanthophylls cycle may play a photoprotective role in dehydrated boea leaves
為此本研究對牛耳草葉片光系統的光化學活性參數和葉黃素循環色素在脫水復甦過程中的變化進行了分析，結果表明，在極微弱的光強（ 3 mol m ~ （ - 2 ） s ~ （ - 1 ）下，脫水8天的牛耳草葉片誘導了葉黃素循環，葉黃素循環可能介導了牛耳草葉片脫水過程中的光保護作用。
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