助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   非光化学荧光猝灭 的翻译结果: 查询用时:0.011秒
图标索引 在分类学科中查询
所有学科
农作物
更多类别查询

图标索引 历史查询
 

非光化学荧光猝灭
相关语句
  “非光化学荧光猝灭”译为未确定词的双语例句
     The Changes and Components of Non-photochemical Quenching under Drought and Shade Conditions in Maize
     干旱和遮光条件下玉米非光化学荧光猝灭的变化和组成的研究(英文)
短句来源
     Thus, the increased excited pressure was accumulated on PS Ⅱ at 10 ℃. Susceptibility to photoinhibition was much higher at 10 ℃ than at 25 ℃.
     与对照(25 ℃)相比,低温下的盐藻 有更高的Q_A(PSⅡ反应中心的原初受体)还原态和q~N(非光化学荧光猝灭)值。
短句来源
     It demonstrated that photooxidation led to PSⅡ inactivation expressing in the reduction of the number of PSⅡ centre undergoing a stable charge separation and efficiency of the primary photochemical efficiency and noncyclic electron transport of PSⅡ.
     部分激发能通过非光化学荧光猝灭形式耗散,但ΔA505 在光氧化下降低与qN 上升不一致。
短句来源
     By using saturated pulse technology, we examined the effects of light pulse intensities, light pulse frequencies, and inducing light (actinic light) intensities on photochemical (qP) and non-photochemical quenching (qN) of chlorophyll fluorescence during light illumination, and the dark relaxation after reaching photosynthetic steady-state condition in Dunaliella salina 1009. The results show that various components of qN can be resloved by pulse technology in dark relaxation kinetics after the actinic light is turned off.
     实验用盐藻取自天津溏沽轻工业部制盐研究所 ,应用叶绿素荧光技术检测盐藻悬浮液在暗适应或稳态光合作用下的荧光产量 (光化学荧光猝灭 qP和非光化学荧光猝灭 qN的进程 )和在稳态后黑暗期间荧光产量的恢复 (qN的暗弛豫动力学 )。
短句来源
     In order to observe the responses of non photochemical chlorophyll fluorescence quenching (qN) as well as the change courses and components of qN to drought and shade stresses, these parameters were measured in different treatments.
     为了了解玉米叶绿素非光化学荧光猝灭 (q N)对干旱和遮光逆境的反应 ,我们研究了 q N的主要叶绿素荧光参数。
短句来源
更多       
  相似匹配句对
     PHOTOCHEMICAL REACTORS
     光化学反应器
短句来源
     In addition, choline chloride treat-ment increased the non-photochemical quenching(NPQ) (Fig.3D) and the proline content (Fig.5)in chilled leaves under weak light.
     提高了光化学猝灭系数(NPQ)和脯氨酸的含量。
短句来源
     Infra-red Laser Photochemistry
     红外激光光化学
短句来源
     Photochemical Fluorimetry
     光化学荧光分析法
短句来源
     Photochemical instability of LiPF_6 in non-aqueous electrolytes
     水电解液中LiPF_6的光化学不稳定性
短句来源
查询“非光化学荧光猝灭”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  non photochemical quenching
This is because the proton gradient across the thylakoid membrane is necessary for the formation of the non photochemical quenching.
      


Using a Hansatech ModulatedFluorometer (MK Ⅱ) we observed thechanges in main fluoreesence parame-ters such as initial fluoreseence F_0, ra-tio of variable fluoreseence to maximalfluoreseence F_v /F_M, and fast compo-nent q_(E-fast) and slow component q_(E-slow) ofnon-photochemical flureseence quench-ing q_E in sweet viburnum leaves duringphotoinhibition of photosynthesis underintense light and successive recoveryunder weak light in order to explore therelative roles of the different compo-nents of q_E in protection...

Using a Hansatech ModulatedFluorometer (MK Ⅱ) we observed thechanges in main fluoreesence parame-ters such as initial fluoreseence F_0, ra-tio of variable fluoreseence to maximalfluoreseence F_v /F_M, and fast compo-nent q_(E-fast) and slow component q_(E-slow) ofnon-photochemical flureseence quench-ing q_E in sweet viburnum leaves duringphotoinhibition of photosynthesis underintense light and successive recoveryunder weak light in order to explore therelative roles of the different compo-nents of q_E in protection against photo-inhibition damage. Illumination with intense light ofabout 1500 umol m~(-2)s~(-1) caused de-creascs in F_0, F_V/F_M and q_(E-fast), andincreases in q_(E-slow) and q_E (from Fig. 1to Fig. 5). NH_4C1 treatment extendedthe extents of both q_(E-slow) increase andF_V/F_M, decrease under intense light(Fig. 1, 2). DTT treatment led to de-creased q_E and deminished extent of0_(E-slow) increase, increased levels of F_0and steady state fluorescence, and slowrecovery under weak light of decreasedF_V/F_M after intense light (Fig. 3, 4).NaF treatment had no significant effecton these fluorescence parameters (Fig.5). The results indicate that of non-photochemical fluorescence quenchingthe slow component related to zeaxan-thin--dependent radiationless energy dis-sipation has a more important role thanthe fast component related to \pH-de-pendent radiationless energy dissipa-tion, but the intermediate componentrelated to state transition of light-har-vesting chlorophyll protein complex ofphotosystem Ⅱ has no role in the pro-tection against photoinhibitory damageof photosynthetic apparatus.

使用脉冲调制荧光仪观测了珊瑚树叶片光合作用的光抑制发生与恢复过程中几个主要荧光参数(初始荧光F_0,可变荧光与最大荧光之比F_v/F_M和非光化学荧光猝灭q_E及其快组分 q_(E—fast)、慢组分 q(E—slow))的变化,以探讨非光化学荧光猝灭不同组分的作用。 强光(约 1500μmol photons m~(-2) s~(-1))照射叶片使F_0、F_V/F_M和q_(E—fast)降低.q_(E—slow)和q_E增高。NH_4Cl处理使 F_V/F_M降低的幅度和q_E提高的幅度都增加。DTT处理使q_E水平和q_(E—slow)增加的幅度降低,而F_0和稳态荧光水平增加,强光下降低了的F_V/F_M在弱光下不易恢复。NaF处理对这些荧光参数都没有明显的影响。

The photoinhibition of photosynthesis studied by chloroplasts and thylakiods was, in most cases, observed under extreme conditions. Although a few authors reported photoinhibition observed under natural conditions with no environmental stress besides high light, the cause of this type of photoinhibition is still unknown. To clarify it,we studied photoinhibition of Viburnumodoratissimum leaves under natural conditions.After exposure to midday stronglight, the apparent quantum yield (AQY) and PS Ⅱ photochemical...

The photoinhibition of photosynthesis studied by chloroplasts and thylakiods was, in most cases, observed under extreme conditions. Although a few authors reported photoinhibition observed under natural conditions with no environmental stress besides high light, the cause of this type of photoinhibition is still unknown. To clarify it,we studied photoinhibition of Viburnumodoratissimum leaves under natural conditions.After exposure to midday stronglight, the apparent quantum yield (AQY) and PS Ⅱ photochemical efficiency (Fv/Fm ) measured in the afternoon declined compared to that measured in the morning (Table 1~5),indicating that photoinhibition frenquently occurs in Viburnum odoratissimumleaves under natural conditions withmidday high light as the only stress.More importantly, AQY and Fv/ Fm recovered almost to the level observed in the morning. 1 hour after shading following the decrease after exposure to midday high light (Table 3and 5). After 3 h of midday strong light, the light-saturated photosynthetic rate (Pmax) showed only an insignificant fall (Fig. 1), but the initial fluorescence (F0 ) decreased (Table 5 ).The content of QB protein in leaves did not show evident change after illumination imitating midday strong light (Fig. 3). These facts suggest that radiationless energy dissipation ratherthan the damages to the photosynthetic apparatus, is the predominent cause of this type of photoinhibition, and even if such damage takes place, it is negligible.

利用气体交换观察、叶绿素荧光分析和QB蛋白含量的测定3种方法,研究了常绿灌木珊瑚树叶片的光合作用在上海深秋初冬自然条件下的光抑制,以便确定在除光以外不存在其它环境胁迫的自然条件下光合机构的破坏是否是引起光抑制的主要原因。经过中午3h左右的强光照射以后,珊瑚树叶片的表观量子效率(AQY)和PSⅡ光化学效率(Fv/Fm)明显下降,表明珊瑚树叶在自然条件下经常发生光抑制。而且,经中午强光照射以后,叶片的初始荧光(F0)下降;非光化学荧光猝灭的慢弛豫成分(qEslow)上升;光饱和的光合速率略有下降;中午光照后降低了的AQY和Fv/Fm在叶片离开强光1h以后基本恢复;模拟中午光照的强光处理对叶片的QB蛋白含量没有明显的影响。这些事实都说明这种光抑制发生的主要原因是非光辐射能量耗散的增加,光合机构的破坏即使发生,也是很轻微的。

To determine whether the net loss of D1 protein is the main cause of photoinhibition of photosynthesis in wheat leaves under field conditions in the absence of any environmental stress other than strong sunlight,the D1 protein content,photosynthetic evolution of oxygen and chlorophyll a fluorescence parameters were measured in field grown wheat leaves.After exposure to midday strong light for about 3 h,apparent photosynthetic quantum efficiency (Φ),F v/F m and F 0 in wheat leaves declined,and these parameters...

To determine whether the net loss of D1 protein is the main cause of photoinhibition of photosynthesis in wheat leaves under field conditions in the absence of any environmental stress other than strong sunlight,the D1 protein content,photosynthetic evolution of oxygen and chlorophyll a fluorescence parameters were measured in field grown wheat leaves.After exposure to midday strong light for about 3 h,apparent photosynthetic quantum efficiency (Φ),F v/F m and F 0 in wheat leaves declined,and these parameters recovered almost completely 1 h after transfer to the weak light of 30~40 μmol photons·m -2 ·s -1 .No evident change in the D1 protein content was observed in the leaves after exposure to midday strong light for 3 h.After 3 hours's exposure to strong light,the slow relaxed fluorescence quenching in the leaves treated with streptomycin(SM) increased much more than that in the control leaves,but there was no effect SM on the recovery of F v/F m and F 0;dithiothretol (DTT) treatment enhanced photoinhibition of photosynthesis and reduced the D1 protein content in the leaves after exposure to midday strong light.These results indicated that under field conditions with no environmental stress other than strong sunlight,photoinhibition of photosynthesis in wheat leaves was not due to the net loss of D1 protein,and it could be attributed mainly by the increased nonradiative energy dissipation.

通过测定田间小麦(Triticum aestivum )叶片D1蛋白的含量、光合放氧和叶绿素a 荧光,探讨了叶片光合作用的光抑制与D1蛋白净降解的关系。田间的小麦叶片受到晴天中午光照约3 h 以后,表观光合量子效率(Φ)、光系统Ⅱ的光化学效率(Fv/Fm )和初始荧光(F0)明显下降;若将叶片转入弱光下,这3个指标可在1 h 内基本恢复;强光照射过程中D1蛋白的含量没有显著变化;D1蛋白合成抑制剂SM 使强光下叶片的慢驰豫的非光化学荧光猝灭(qE-slow )明显增加;在弱光下恢复时引入链霉素(SM)不影响叶片光合功能的恢复;用二硫苏糖醇(DTT)抑制叶黄素循环使中午强光照射后的叶片中D1蛋白的含量降低30% 左右。这些结果都表明,田间小麦叶片光合作用的光抑制不是由于D1蛋白的净降解,而是由于非辐射能量耗散的增加引起的。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关非光化学荧光猝灭的内容
在知识搜索中查有关非光化学荧光猝灭的内容
在数字搜索中查有关非光化学荧光猝灭的内容
在概念知识元中查有关非光化学荧光猝灭的内容
在学术趋势中查有关非光化学荧光猝灭的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社