胁迫的

Magnesium deficiency stress increased the proportion of 14 C photosynthate remaining in labelled leaves and decreased the rate of 14 C photosynthate exportation.

随着缺镁胁迫程度的加重，14 C -光合产物在标记叶中的滞留量增加，输出率降低。

BR and GABA may build up the resistant ability to high temperature and ultraviolet radiation by altering the level of phytohormone in tissue of wheat.

BR和GABA对小麦主要器官中激素含量的改变，可能是对高温胁迫和紫外辐射抗性增强的重要原因。

Objective To investigate the roles of oxidative stress induced by paraquat treatment in the formation of severe of lethality in planarian Dugesia japonica.

目的 研究百草枯诱导的氧化胁迫在涡虫严重致死率发生中的角色。

The rumour that Tibetan local government representatives had no plenipotentiary qualification, and that they worked under the coercion and pressure from the Central Government, are contrary to the historical facts.

所谓西藏地方政府代表不具有全权代表资格以及在"胁迫"和"压力"下进行谈判与签订的言论，是违背历史事实的。

In order to study the expression and functional characteristics of dehydrin gene during different growth, and make the polycolonal antibody, using wheat plumelet under the water deficit condition as experiment material, and its total RNA was extracted. The target dehydrin gene through RT-PCR was got, connect to the cloning vector PUCM-T, recombination expression plasmid PET-32a-wzy1-1 was constructed according to recombination of cloned vector PUCM-T-WZY1-1 of wheat dehydrin gene in this experiment.

为研究小麦在不同时期脱水素基因的表达情况和生物学功能及抗体制备，以小麦幼芽为材料，经干旱胁迫处理后，提取总RNA，通过RT-PCR得到小麦类脱水素基因片段(WZY1-1)，再连接至克隆载体PUCM-T，并成功构建重组表达质粒PET-32a-wzy1-1，将阳性重组质粒转化于受体菌BL21(DE3)感受态细胞中，经IPTG诱导表达，进行表达产物的聚丙烯酰胺凝胶电泳检测。

The PEG concentration treatments had a higher inhibiting effect on plumule growth than on radicle.

以不同渗透势的PEG(6000)溶液模拟水分胁迫条件，研究了柱花草28个品系的耐旱能力。

For drought tolerant genotypes, the relative value of proline content, SOD or CAT activity of plumule should be larger than 2.2, 0.8 and 0.8, respectively, while for drought sensitive ones, the relative value should be less than 1.5, 0.65 and 0.4, respectively.

渗透胁迫条件下胚芽鞘脯氨酸、CAT和SOD的T/CK值分别大于2.2、0.8和0.8为强抗旱性品种，而抗旱性弱的品种则分别小于1.5、0.65和0.4。

With the increase of lead concentration, the inhibition index of the radical growth increased remarkably, the radical became podgy, deformed, even browning and necrotic.

进一步的光学显微镜分析结果表明，根尖生长锥随着铅胁迫浓度的增加而变短、变粗、畸形，根尖细胞变短、变小。

LaCl3 had some effects on the contents of MDA and praline and the protective enzyme activities of POD and CAT in the leaves of maize seedlings under Hg stress.

得出结论，LaCl3对Hg胁迫下玉米幼苗叶片MDA和脯氨酸含量以及保护酶POD和CAT的活性产生了一定的影响。

As material, The changes of the contents of chlorophylls, MDA, praline and the activity of SOD of I. pseudacorus L. leaves were studied with different Pb concentration and different treatment time by sand culture. The results showed that the contents of chlorophylls in the leaves of I.

为材料，采用沙培方法，对不同Pb浓度(0、2、4、6、8、10mmol/L)和处理时间(7、14、21、28d)胁迫下植物的叶片叶绿素、丙二醛和脯氨酸含量以及超氧化物歧化酶活性的变化进行了研究。

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。