叶绿素

This happens in a so called reaction center inPhotosystemⅡ, where a tetrameric chlorophylls (P680) absorb the solar light andinitiate photoinduced electron transfer reaction to the acceptors, quinone A and B. Thephoto-oxidized P680 retrieves the electron from a Mn4Ca cluster via a tyrosine, thelatter components are also called oxygen evolving center. After 4 photo-processes, twomolecular water are oxidized to a molecular oxygen.

在光系统二的活性中心，叶绿素P_(680吸收太阳光，将电子传递给电子受体、醌A和醌B，同时光氧化的P_(680)~+从释氧中心中得回电子(通过Tyr_z氧化Mn4Ca簇)，经过四次光诱导电子转移，两分子水最终被氧化生成一分子氧气。

Correlation analysis of both chlorotic plants and plants staying green of the F3populations revealed that there was a significant positive correlation between yield index values and the physiological indices net photosyn- thetic rate, stomatal conductance, and chloro- phyll, as well as a significant negative correlation between yield index values and the physiological indi- ces intercellular CO2 concentration and malondial- dehyde.

相关性分析表明收获指标与生理指标，如净光合速率、气孔导度、叶绿素含量等呈显著正相关；而与细胞间CO2 浓度及丙二醛含量呈显著负相关。

Result Compared with the traditional shaping mode of fan type, the types of L and FI could significantly increase the leaf area and the average berry weight and the L type could significantly increase the chlorophyll content, stomatal conductance and Rubisco activity of leaves and increase the photosynthesis rate of leaves at last in the rapid growth period of berry; all the shaping types of L, FI and V could increase the average berry weight and the soluble solid content in fruit to different degree and decrease the of titrable acidity content in fruit.

结果］与传统的扇形整型方式相比，L型和FI型整型方式明显提高葡萄的叶面积和平均单果重；在果实迅速膨大期，L型还显著提高叶片的叶绿素含量、气孔导度和Rubisco活性，使叶片的光合速率显著提高；L型、FI型和V型整型方式均不同程度提高葡萄平均单果重和可溶性固形物含量，降低果实可滴定酸含量。

The results showed that the decreasing of the hardness was inhibited, the 1st fracture drop off was maintained, and those such as the production of the ethylene , the degrading of the chlorophyll, the decreasing of the titratable acid were inhibited, as well as the changing of the enzyme activities. And 1-MCP can keep a better condition of the inner structure of the tomato.

结果表明，1-MCP的处理减缓了硬度的下降，在一定程度上可以保持果实的脆度，抑制乙烯生成，阻止叶绿素的降解，降低可滴定酸的减少，对酶活变化起到了一定的抑制作用，同时较好地保持了番茄果肉组织结构的完整性。

The 8 proteins were attributed to the processes of 26S protein dehydration, respiration, tricarboxylic acid cycle, chlorophyll synthesis, glyoxylate cycle, respectively, and of which one spot was cold resistant protein.

在这4次降温过程中重复出现的8蛋白点分别参与265蛋白水解途径、呼吸代谢、三羧酸循环、叶绿素合成，其中有一个位点是抗性蛋白。

Random complete block design was used to research the impact of spraying 41% Glyphosateisopropylammonium AS on physiological indexes of glyphosate-resistant soybean cultivars (RR2) and ordinary soybean cultivars (Jinda75) at different growth stages, one-trifoliolate, two-trifoliolate and three trifoliolate leaf stage.

采用随机区组的设计方法，分别在第一、二、三复叶期喷施不同剂量的41%草甘膦异丙胺盐水剂，研究了其对抗草甘膦大豆RR2和普通大豆晋大75叶片叶绿素含量指数、莽草酸质量分数和SOD活性等生理指标的影响。

In this paper the writers have studied the diversity of contents of chlorophyll with the method of spectrophotometer in the seven breed species of malting barely in the periods of the trilobe, the jointing, the booting, the milking and the maturing.

用分光光度法研究了啤酒大麦 7个品种间叶绿素含量在三叶期、拔节期、抽穗期、灌浆期和成熟期的多样性。

The results have shown that there exist excitation energy transfers from the component at 232 nm in PS II proteins to the tyrosyl residues, and from these two amino acid residues to chlorophyll a.

在PSII蛋白质内部，存在着232 nm处的组分与酪氨酸之间以及这两种氨基酸列基与叶绿素a之间的能量传递。

A lot of study showed that: the main reason for this was that plantlets grew in the sealed vessel and depend on sugar in the medium, which resulted to poor development of leaf, unflexible open-close of stomata and low chlorophyll content. So, plantlets lose photosynthetic ability.

国内外许多研究报道认为，组培苗生长不够健壮主要原因是组培小植株长期在密闭环境中生长，靠培养基中的糖进行异养，而导致叶片表层结构发育差，气孔开闭功能差，叶片小，叶绿素含量低，最终使小植株丧失了光合作用的能力。

Except 10 mg/L, the leaf area of V. unguiculata seedlings after seed-soaking with other concentrations of triadimefon was significantly decreased and the chlorophyll content was increased with the seed-soaking effect of 30 mg/L being best.

除10mg/L外，经其余浓度三唑酮浸种的豇豆幼苗的叶面积均显著降低，而叶绿素含量均有所提高（以30mg/L的浸种效果最好）。

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。