叶绿素

Compared with the absorption positions of chlorophyll in acetone, a bathochromic shift was observed at the absorption peaks of chlorophyll in DMF and DMSO.

与叶绿素在丙酮溶剂中的光谱特性吸收峰位置相比较，叶绿素的光谱特性吸收峰在DMF与DMSO两种溶剂中显现了向红位移。

The physiological and biochemic alanalysis of transgenic plants showed that there were little difference to chlorophyll contents and ratio of chl a to chl b between the WT and transgene plant of Arabidopsis.

转基因拟南芥的生理生化分析显示，反义Psrp-3基因的转化对拟南芥的叶绿素含量和叶绿素a/b比值的影响较小。

The results follow:Broussonetia papyrifera seedlings can increase the absorption of nitrogen and phosphorus through inoculation with VA mycorrhizal fungi.

同时构树幼苗叶绿素a和叶绿素b的含量显著增加，进而净光合速率增加。

The results were as follows: under 1.5% and 2.5% concentration NaCl stress, Calophyllum inophyllum L. seedings grew more quickly, chlorophyll content, CAT and SOD activity were all increaseing; then along with the content increasing, Calophyllum inophyllum L grew more slowly, chlorophyll content decreased, proline and MDA content increased, CAT, SOD activity increased distinctly, POD activity changed non constat. Calophyllum inophyllum L.

结果表明：1.5%和2.5%浓度的NaCl胁迫时，红厚壳幼苗生长更快，叶绿素含量、CAT和SOD活性均增加；之后随着浓度的升高，红厚壳生长减缓，叶绿素含量减少，脯氨酸和丙二醛含量显著增加，CAT、SOD活性显著下降，POD活性变化不明显。

Along with the process of treating time and the increase of the cadmium concn., the chlorophyll content of D. caryophyllus was reduced. When D. caryophyllus leaves were treated by 5.0 mg/L cadmium for 20 d, the cadmium concn. showed a negative correlation to time, with correlation coefficient of-0.789. In the same treating time, the cadmium concn. showed significant negative correlation with chlorophyll content.

随着处理时间的推移和镉浓度的增加，石竹叶绿素含量在减小，镉为5.0 mg/L处理20 d时，镉浓度与时间相关系数为-0.789；在同一处理时间内，镉浓度与叶绿素均呈显著负相关。

The results showed that Celtis julianae 'Aurea' belongs to chl-deficient type. The main cause of turning yellow was the blockage of chlorophyll biosynthesis which could be somewhere in the formation of Pchlide.

导致金叶珊瑚朴叶色金黄的原因是叶绿素的合成受阻，受阻部位可能在Mg插入卟啉环后合成原叶绿素酯时。

With the light intensity decreased, Fv/Fm、Fv/F0 increased and the ratio of chla/chlb droped dramatically, so Celtis julianae 'Aurea' can adapt to the low light intensity.

随着光强的降低，PSⅡ最大光化学效率、PSⅡ的潜在活性（Fv/F0）呈增加趋势，而叶片中叶绿素a与叶绿素b的比值显著下降，说明金叶珊瑚朴可以适应弱光环境。

The paper deals with Hg 2+?Cd 2+ and their interactions on chlorophyll a/b values, SOD activities and the contents of chlorophyll, soluble protein, free proline of Ceratophyllum demersum L.

研究了金鱼藻在不同浓度 Hg2 +、Cd2 +以及 Hg2 +、Cd2 +共同胁迫下叶绿素含量、叶绿素 a/b值、可溶性蛋白含量、SOD活性和游离脯氨酸含量等的变化。

The contents of protein and chlorophyll of Hydrilla verticillata. L is lower, but those of Myriophyllum spicatum L and Ceratophyllum demersum L raised steadily in the same condition, which indicated that those two submerged macrophytes have the stronger tolerance for nutrition than Hydrilla verticillata L.

通过对3种沉水植物可溶性蛋白和叶绿素质量分数的分析发现，黑藻在中富两种营养水平下，质量分数较低且波动平稳，金鱼藻和狐尾藻可溶性蛋白和叶绿素质量分数持续升高，表明这两种沉水植物对水体中营养盐的耐受能力较黑藻强。

ABSTRACT Partially purified chlorophyll was used to prepare pheophorbide by chlorophyllase hydrolysis and selective acidic hydrolysis methods.

以初步纯化的叶绿素为原料，利用叶绿素酶水解、选择性酸降解两种方法制备脱镁叶绿酸。

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。