类叶绿素

UV-B-induced damage in such leaves could be reduced with 0.5 mmol.L-1 NaHSO3 treatment; brown spots on the leaf surface were reduced in number, the degree of leaf wilt was reduced, degradation of chlorophyll and carotinoid was reduced and flavonoid level was increased. With the NaHSO3 treatment, the content of H2O2 in leaves of Phaseolus vulgaris under enhanc ed UV-B radiation was significantly lower than in controls, and the activities of antioxidant enzymes were higher with treatment than in controls.

结果表明：与未处理对照相比较，用0.5 mmol.L-1 NaHSO3处理的离体红芸豆叶片表面褐色斑减少、边缘蜷曲及萎蔫程度降低；且能延缓叶片中叶绿素和类胡萝卜素含量的降低；使类黄酮含量升高；叶片中过氧化物酶和抗坏血酸过氧化物酶活性升高，过氧化氢(H2O2)含量降低。

And with decrease in light intensity,the shape of palisade mesophyllchanged from column into invert pyramid.The higher proportion of granum thylakoid,more granum in one ganum thylakoid and lower ratio of chlorophyll a to chlorophyll bwere also the responses of leaves to shading.

在庇荫环境中，栅栏组织薄壁细胞由全光的柱状变成倒锥形、叶绿素a/b率显著降低、叶绿体中基粒类囊体所占的比例提高、每个基粒类囊体垛的片层数量增加等，也是幼树提高叶片对弱光利用能力的主要标志。

So the present study was taken to compare the differences in the mechanisms of dissipating excess light energy in cucurbit crops and to study the differences in both the ROS metabolism in root system and the photosynthesis among six cucurbit crops with different temperature tolerance growing at different root-temperatures. The main results are as follows: 1、The species specific response of three cucurbit crops with different heat-tolerance: warm-adapted cucumber, heat-tolerant sponge gourd and heat-sensitive figleaf gourd to diurnal changes in air temperature and irradiance intensity were investigated in a typical summer sunny day. Three cucurbit species were compared using parameters in gas exchange, chlorophyll fluorenscence, photon allocation and photosynthetic electron flux.

因此，本试验以温度敏感性不同的瓜类作物为材料，研究了夏季自然条件下不同物种间在耗散过量光能的主要机制差异；探讨了它们对不同根际温度在根系活性氧代谢及地上部光合作用等方面的生理响应差异，所取得的主要结果如下： 1、在夏季晴天条件下，三种温度敏感性不同的瓜类作物：喜温的黄瓜，耐热性的丝瓜与热敏感的黑籽南瓜在气体交换、叶绿素荧光、光能分配及光合电子流对一天中温度与光照环境变化的响应上存在物种间差异和日变化特征。

Na2FlBr4Cl4 shows the maximum algaecidal activity, and the MLC value is 40μM with illumination and 90μM without illumination. From the research on the Na2FlBr4Cl4 against the growth of algae and the content of chlorophyll a, we obtains that xanthene derivatives have little effect on the growth of algae at low concentration and can restrain the growth of algae at middle and high concentration.

呫吨类化合物对铜绿微囊藻的测试结果显示：供试样品中对供试藻种活性最强的是Na2FlBr4Cl4，其MLC值为在光照条件下为40μM，在无光条件下为90μM；通过Na2FlBr4Cl4对铜绿微囊藻的生长量以及叶绿素a含量的影响的研究发现，在较低的浓度范围内，呫吨类化合物对铜绿微囊藻的生长没有太大影响，而在中高的浓度范围内，则能产生显著的抑制效应。

The results showed that: three major peaks,humuslike fluorescence peak A,proteinlike fluorescence peaks B and C appeared on the threedimensional fluorescence spectroscopy;the DOM fluorescence intensity was well related with DOC and CODMn,indicating that fluorescence dissolved organic matter content can reflect both the organic carbon content and the organic matter content by oxidation in the water in August,during the nonalgae bloom outbreak period,fluorescence intensity had a poor correlation with chlorophyll a,indicating that phytoplankton was not the main source of the fluorescent substances.

结果显示：小江回水区DOM的三维荧光光谱主要表现出3个峰，类腐殖质荧光峰A、类蛋白荧光峰B和C；DOM荧光强度与DOC、CODMn相关性较好，表明荧光溶解有机物质的含量可以较好反映水体中有机碳和可被氧化有机物的含量；在8月份非水华暴发时期荧光强度和叶绿素a相关性较差，表明DOM荧光物质主要不是由浮游植物产生。

Determination of functional components in foods and Chinese herbs as well as evaluation of biological activity – Both foods and Chinese herbs investigated include soybean, Ziziphus jujuba , Lycium barbarum , Gynostemma pentaphyllum , Taraxacum formosanum , Rhinacanthus nasutus , Scutellaria barbata , etc. Functional components investigated include carotenoid, chlorophyll, flavonoid, phenolic acid, polysaccharide, saponin, isoflavone, etc. In my lab we have developed many LC-MS methods for determination of these components and proved their antiproliferation effect on cancer cells and anti-inflammatory activity.

食品及中草药有效成分测定及其对生物活性的影响-探讨的食品包括大豆、蕃茄、芒果等等，中草药包括红枣、枸杞、七叶胆、蒲公英、仙鹤灵芝草、半枝莲等等，有效成分则包括类胡萝卜素、叶绿素、类黄酮、酚酸、多醣、皂苷、异黄酮等等，本实验室已成功开发多种LC-MS方法测定这些成分并证实这些成分具有抑制癌细胞增生及抗发炎的功效，已有多篇论文发表於国际著名期刊。

Concentrations of water soluble phenolic substances in the leaves of male and female trees of Acer negundo L.were successively determined within an entire growing season by method of iron tartrate colorimetric analysis.

采用酒石酸铁比色法对复叶槭雌、雄株叶片中水溶性酚类物质的含量进行了一个生长周期的跟踪测定，对不同性别、不同年龄、不同光照条件下的复叶槭植株叶片中水溶性酚类物质的含量做了比较分析，同时研究了叶片中叶绿素的含量与水溶性酚类物质含量之间的关系。

Peason＇s correlation analysis indicated that content of chlorophyll a and chlorophyll b had negative correlation with the concentration of the aqueous extracts, but concentration of carotenoid had no obvious change.

Peason相关性分析表明，叶绿素A和叶绿素b含量与水浸提液浓度存在显著的负相关性，类胡萝卜素无明显变化。

The colour of glume was also virescent at heading stages.2 The effects of mutated gene on the agronomic charactersThe comparison of the main agronomic characters between Qiufeng and Qiufeng M showed that there were no difference except neck length and 1000 grain weight.

秋丰和秋丰M不同生长时期不同叶片的色素含量比较对秋丰和秋丰M不同生长时期不同叶片的色素含量进行比较的结果表明，在所测定叶片中，秋丰M第三叶叶绿素a、叶绿素b、类胡萝卜素含量最低，只有秋丰的1／3左右。

Concentration of chlorophylls in the leaves might be adopted to be an index for sex identificationbecause of the closely negative correlation between concentrations of chlorophylls and watersoluble phenolic substances.

由于水溶性酚类物质的含量与叶片中叶绿素含量之间的负相关性达显著水平，测定方法更为简便的叶绿素含量可同时成为复叶槭植株性别判断的另一项生理指标。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。