叶绿素

The properties of a series of Pb-pheophytins were studied by HPLC and spectrometric assay.

5采用高效液相色谱法和动力学光度法分别研究了铅叶绿素的一些理化性质。

Sphagnum that was covered with moss was treated with shading. Contend of Chlorophyll of the moss reduced gradually as the time lasted.

对长满青苔的水苔进行遮光处理，青苔叶绿素含量随遮光时间的延长而逐渐减少。

The photosynthetic rate,contents of chlorophyll andtranspiration rate decreased significantly in low temperature stress with sunshine than that withdark.The photosynthetic rate decreasing was not caused by plant spiracle.

在光照低温条件下光合速率、叶绿素含量与蒸腾速率下降的程度比黑暗低温条件下显著。

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。

Most plants have cellulose cell walls,and have starch as a storage polysaccharide, whereas animals have no cell walls, store glycogen, and do not have plastids or chlorophyll;and fungi usually lack cellulose and also do not form plastids.

大多数植物具有纤维素细胞壁，以淀粉形式储存多糖，而动物没有细胞壁，储存糖原，没有质体或叶绿素；真菌通常缺乏纤维素，也不形成质体。

The damage caused by Cl in strawberry was less than that of Na~+ and Ca~+ far away.3.Membrane damage in root and leaf of strawberry was relief by Ca(NO_3)_2,CaCl_2 and Ca_2 treatment under NaCl stress, while leaf holding ability and chlorophyll content was enhanced, growth was improved and the biomass increased.

低浓度Ca(NO_3)_2、CaCl_2和Ca_2作为外源钙均能减轻NaCl胁迫对草莓成株根系和叶片的膜伤害，提高叶片保水力和叶绿素含量，改善草莓的生长状况，提高生物产量。

After pretreatment with Ca(NO3)2,W7 and TFP in improving and blocking Ca2+*CaM messenger system, membrane damage in strawberry leaf was relief by Ca(NO3)2treatment, at the meanwhile, salt damage index was reduced, the content of prolinc and chlorophyll were enhanced, Pn, EVAP and GS were improved, ABA content in root and leaf was reduced, the content of ZTJAA, GA and ZT/ABA were enhanced, the content of unaturated fatty acid increased, whereas, saturated fatty acid content in leaf and root was reduced, the rate between unaturated fatty acid and saturated fatty acid and index of unaturated fatty acid were enhanced.

在Ca(NO_3)_2、W7和TFP喷叶预处理促进或阻碍Ca~(2+)·CaM信使系统传导后，发现Ca(NO_3)_2处理能减轻叶片的膜伤害，降低盐害指数，增加脯氨酸含量和叶绿素含量，提高净光合速率、蒸腾速率、气孔导度，降低根系和叶片中的ABA含量，增加ZT、IAA和GA含量和ZT/ABA比值；提高叶片和根系中的UFA含量、U/S比值和IUFA，降低根系和叶片中的SFA含量。

But these variations were different among tile dominant species seedlings in different forest successional stages.

不同的演替阶段优势种苗木的叶绿素含量的增加或减少在量上有一定的区别。

Was treated with 25, 50, 75, 100mmol/L stress of Na2CO3 for 6 days, The result shows: fresh dry weight、succulence、the content of chlorophyll of Vicia faba L.

结果表明，一定浓度的Na2CO3促进了蚕豆幼苗鲜干重、肉质化程度、叶绿素含量的增加，100mmol/LNa2CO3处理明显抑制了蚕豆幼苗的生长。

In this article, the test was conducted that different physiological indexed of fresh dry weight、succulence、the plasma membrane permeability、MDA content and chlorophyll content were determined while Vicia faba L.

用Na2CO3处理蚕豆幼苗，处理浓度为25，50，75，100mmol/L，胁迫6天后取样，测定植株鲜干重、肉质化程度、细胞膜透性、丙二醛含量、脯氨酸含量叶绿素含量等生理指标。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。