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光化学荧光    
相关语句
  photochemical fluorescence
    Photochemical Fluorescence Nature of Chlordiazepoxidum and Its Application
    氯氮卓的光化学荧光特性及其应用
短句来源
    Determination of DNA by Use of in situ Photochemical Fluorescence Probe──Sodium 9,10-Anthraquinone-2-sulfonate as a Photochemical Fluorescence Probe
    现场光化学荧光探针法测定DNA──以9,10-蒽醌-2-磺酸钠为光化学荧光探针
短句来源
    Photochemical Fluorescence Characteristics of Nitrazepam and Its Application
    硝基安定的光化学荧光特性及其应用
短句来源
    Determination of Fleroxacin by Photochemical Fluorescence of Zinc-Fleroxacin Complex
    锌(Ⅱ)-氟罗沙星光化学荧光法测定药物制剂中的氟罗沙星
短句来源
    Determination of Methotrexate in Biological Matrices by Liquid-phase Microextraction Combined with Photochemical Fluorescence High Performance Liquid Chromatography
    液相微萃取-光化学荧光-高效液相色谱法测定生物样品中甲氨喋呤的含量
更多       
  photochemical fluorescence
    Photochemical Fluorescence Nature of Chlordiazepoxidum and Its Application
    氯氮卓的光化学荧光特性及其应用
短句来源
    Determination of DNA by Use of in situ Photochemical Fluorescence Probe──Sodium 9,10-Anthraquinone-2-sulfonate as a Photochemical Fluorescence Probe
    现场光化学荧光探针法测定DNA──以9,10-蒽醌-2-磺酸钠为光化学荧光探针
短句来源
    Photochemical Fluorescence Characteristics of Nitrazepam and Its Application
    硝基安定的光化学荧光特性及其应用
短句来源
    Determination of Fleroxacin by Photochemical Fluorescence of Zinc-Fleroxacin Complex
    锌(Ⅱ)-氟罗沙星光化学荧光法测定药物制剂中的氟罗沙星
短句来源
    Determination of Methotrexate in Biological Matrices by Liquid-phase Microextraction Combined with Photochemical Fluorescence High Performance Liquid Chromatography
    液相微萃取-光化学荧光-高效液相色谱法测定生物样品中甲氨喋呤的含量
更多       
  photochemical fluorimetry
    In-situ Photochemical Fluorimetry of Tyrosine and Its Determination
    现场光化学荧光法测定酪氨酸
短句来源
    Studies on the Photochemical Fluorimetry of Several Substrates of Enzyme Reaction
    一类酶反应底物的光化学荧光研究
短句来源
    The mechanism of photochemical fluorimetry of several substrates of enzyme reaction has been studied and it was considered that the photo can replace noly oxidase but also oxidizer.
    研究了对位取代酚类酶反应底物的光化学荧光反应机理,指出光子不仅可以取代过氧化物酶,而且可以取代氧化剂(H_2O_2)。
短句来源
    Besed on this fact, a new photochemical fluorimetry in-situ was developed for determination of tyrosine.
    据此,建立了现场光化学荧光法测定酪氨酸的新方法。
短句来源
  photochemical fluorescence
    Photochemical Fluorescence Nature of Chlordiazepoxidum and Its Application
    氯氮卓的光化学荧光特性及其应用
短句来源
    Determination of DNA by Use of in situ Photochemical Fluorescence Probe──Sodium 9,10-Anthraquinone-2-sulfonate as a Photochemical Fluorescence Probe
    现场光化学荧光探针法测定DNA──以9,10-蒽醌-2-磺酸钠为光化学荧光探针
短句来源
    Photochemical Fluorescence Characteristics of Nitrazepam and Its Application
    硝基安定的光化学荧光特性及其应用
短句来源
    Determination of Fleroxacin by Photochemical Fluorescence of Zinc-Fleroxacin Complex
    锌(Ⅱ)-氟罗沙星光化学荧光法测定药物制剂中的氟罗沙星
短句来源
    Determination of Methotrexate in Biological Matrices by Liquid-phase Microextraction Combined with Photochemical Fluorescence High Performance Liquid Chromatography
    液相微萃取-光化学荧光-高效液相色谱法测定生物样品中甲氨喋呤的含量
更多       

 

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  photochemical fluorescence
The proportions of non-photochemical fluorescence quenching (qN) which are related (qE) and unrelated (qI) to the transthylakoid proton gradient (ΔpH) were determined.
      
The photosystem-II acceptor, QA, was monitored by photochemical fluorescence quenching, and became more reduced.
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves of Gossypium
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves ofGossypium
      
Both FV/FM and photochemical fluorescence quenching remained high until about 40% relative water content and both then decreased rapidly as plants approached 0% relative water content.
      
更多          
  photochemical fluorescence
The proportions of non-photochemical fluorescence quenching (qN) which are related (qE) and unrelated (qI) to the transthylakoid proton gradient (ΔpH) were determined.
      
The photosystem-II acceptor, QA, was monitored by photochemical fluorescence quenching, and became more reduced.
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves of Gossypium
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves ofGossypium
      
Both FV/FM and photochemical fluorescence quenching remained high until about 40% relative water content and both then decreased rapidly as plants approached 0% relative water content.
      
更多          
  photochemical fluorescence
The proportions of non-photochemical fluorescence quenching (qN) which are related (qE) and unrelated (qI) to the transthylakoid proton gradient (ΔpH) were determined.
      
The photosystem-II acceptor, QA, was monitored by photochemical fluorescence quenching, and became more reduced.
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves of Gossypium
      
Temperature dependence of violaxanthin de-epoxidation and non-photochemical fluorescence quenching in intact leaves ofGossypium
      
Both FV/FM and photochemical fluorescence quenching remained high until about 40% relative water content and both then decreased rapidly as plants approached 0% relative water content.
      
更多          
  其他


The photosynthetic characteristics of 10 F 1 hybrids in winter wheat ( Triticum aestivum L.) and their parents were studied. The result showed that overall photochemical quantum yield of PSⅡ (Yield) and the coefficient of photochemical fluorescence quenching ( q P) of only each 4 F 1 hybrids winter wheat surpassed their parents in 10 cross combinations, but the photosynthetic functions, such as Yield, q P, PSⅡ activity (F v/F o), the efficiency of primary conversion of light energy of PSⅡ(F v/F...

The photosynthetic characteristics of 10 F 1 hybrids in winter wheat ( Triticum aestivum L.) and their parents were studied. The result showed that overall photochemical quantum yield of PSⅡ (Yield) and the coefficient of photochemical fluorescence quenching ( q P) of only each 4 F 1 hybrids winter wheat surpassed their parents in 10 cross combinations, but the photosynthetic functions, such as Yield, q P, PSⅡ activity (F v/F o), the efficiency of primary conversion of light energy of PSⅡ(F v/F m) and the coefficient of non photochemical fluorescence quenching ( q N) of F 1 hybrids in most cross combinations were similar with their female parents. The experimental results of reciprocal cross F 1 hybrids further proved this interrelationship. It is obvious that the excellence or poorness of most photosynthetic functions depends on matrilineal inheritance. According to the experimental results, we consider that the variety possessing excellent photosynthetic functions should be chosen as female parent when cross combinations are made in winter wheat crossbreeding. It might create the favorable conditions for further sifting stable cultivars of winter wheat possessing excellent photosynthesis functions. It is one of the ways that accelerates the process of crossbreeding in wheat.

研究了 10个冬小麦 (Triticum aestivum L.)杂交组合的子一代 (F1)及其亲本的光合特性。结果表明 ,在这 10个杂交组合中 ,虽然只各有 4个杂交组合的 F1的 PS 总的光化学量子产额 (Yield)和光化学荧光猝灭系数 (q P)有超亲现象 ,但绝大多数组合的 F1光合功能都与母本十分相近 ,正反交组合的结果进一步证明这种相关性。可见 ,母系遗传对于 F1光合功能的优劣有着十分重要的作用。根据所得的实验结果 ,认为在配置冬小麦杂交组合时 ,选择具有优良光合功能的品种作母本 ,可为进一步筛选光合功能好的稳定品种创造条件 ,是加速小麦育种进程的重要途径之一

Photosynthetic capabilities of 12 different genotypes of Triticum aestivum L. were studied,including 2 cultivars from Beijing area. The results showed that net photosynthetic rate (Pn) of cultivars Xiaoyan 22,Shanmai897 and 8901-11-5 exceeded 20 μmol CO_2·m -2·s -1,and were higher than the other cultivars studied. The overall photochemical quantum yield of PSII (Yield),the coefficient of photochemical fluorescence quenching (qP) and the water use efficiency (WUE) of these three cultivars were also higher....

Photosynthetic capabilities of 12 different genotypes of Triticum aestivum L. were studied,including 2 cultivars from Beijing area. The results showed that net photosynthetic rate (Pn) of cultivars Xiaoyan 22,Shanmai897 and 8901-11-5 exceeded 20 μmol CO_2·m -2·s -1,and were higher than the other cultivars studied. The overall photochemical quantum yield of PSII (Yield),the coefficient of photochemical fluorescence quenching (qP) and the water use efficiency (WUE) of these three cultivars were also higher. While their dark respiration rates (Rd) and coefficients of non-photochemical fluorescence quenching (qN) were lower. The results illustrated that the photosynthetic and physiological functions of three cultivars mentioned above were by far the best among the 12 tested cultivars,and that these parameters had a pattern of chain interrelations. It is suggested that if winter wheat cultivars from other parts of the country are to be introduced into Beijing area as field-grown cultivars or as parent material for hybrid breeding,the above three cultivars should take top-priority of among 10 cultivars we studied.

研究了 12个不同基因型冬小麦 (Triticum aestivum )品种 (其中两个为北京本地品种 )的光合能力。结果表明 :小偃 2 2、陕麦 897和 890 7- 11- 5三个品种的净光合速率超过 2 0 μmol CO2 · m- 2 · s- 1 ,均比其它实验品种高 ,其PS 总的光化学量子产额 (Yield)、光化学荧光猝灭系数 (q P)和水分利用效率 (WU E)也较高 ;而其暗呼吸速率和非光化学荧光猝灭系数 (q N)较低 ,表现出具有良好的光合生理功能 ,而且这些参数具有连锁相关的趋势。因此 ,北京地区要引种外地具有优良光合生理功能的冬小麦作为栽培品种或育种亲本时 ,在所实验的 10个外地品种中 ,上述 3个品种应为首选品种。

The response of photosynthetic functions of winter wheat to salt stress was studied in this paper The results showed that the chlorophyll content per unit area of leaves, the capacity of light energy absorption of the chloroplasts, the electron transport rate of PSII, the efficiency of primary conversion of light energy and the coefficient of photochemical fluorescence quenching (qP) were greatly reduced by salt stress, especially NaCl of high concentration (400 mmol/L) At the same time, photosynthetic oxygen...

The response of photosynthetic functions of winter wheat to salt stress was studied in this paper The results showed that the chlorophyll content per unit area of leaves, the capacity of light energy absorption of the chloroplasts, the electron transport rate of PSII, the efficiency of primary conversion of light energy and the coefficient of photochemical fluorescence quenching (qP) were greatly reduced by salt stress, especially NaCl of high concentration (400 mmol/L) At the same time, photosynthetic oxygen evolution rate and its light saturation point was decreased, and photoinhibition was exacerbated by salt stress These results accelerated the decrease of the capacity of oxygen evolution and carbon assimilation Therefore, plants could not effectively accumulate photosynthetic products This is one of the important physiology causes of low yield of crops grown in saline alkali soil

研究了冬小麦 (TriticumaestivumL )光合功能对盐胁迫的响应。结果表明 ,盐胁迫 ,尤其是高浓度NaCl(40 0mmol/L)的胁迫 ,大大降低单位面积叶绿素 (Chl)的含量、叶绿体对光能的吸收能力、PSII电子传递速率、原初光能转化效率以及光化学荧光猝灭系数 (qP) ,同时降低光合放氧速率及其光饱和点 ,使植物更易受到光抑制。这些结果加剧光合放氧和碳同化能力的下降 ,不利于光合产物的积累 ,是生长在盐碱地上作物低产的重要生理原因之一。

 
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