植物的

The effects of different nutrients on abscisic acid fermentation were studied.

前言脱落酸是一种重要的植物激素，在植物的生长发育中起多方面的作用。

Abscisic acid is a kind of plant hormone which is widely distributed within some fungi and many organs of most plants.

植物激素脱落酸广泛的分布于某些真菌和植物的各器官内。

As arenaceous plants community constructed, the organic matter and total nitrogen in the upper-level soil was increased significantly. It stimulated the increase of soil nutrition and consequently the plant growth.

3固沙新材料结合沙生植物沙米、沙蒿等固沙后，土壤有机质和全氮增加明显，有利于土壤肥力的增加，可进一步促进植物的生长。

Parts of many members of the rose family, such as kernels of the apricot, peach, and bitter almond, which breaks down into hydroeyanic acid, benzaldehyde, and glucose.

苦杏仁素一种糖苷，c20h27no11，通常出现在植物种籽、蔷薇科植物的其它部分中，如杏、桃、苦杏仁的核中，可分解成水解酸、苯甲醛和葡萄糖

A glycoside,C20H27NO11,commonly found in seeds and other plant parts of many members of the rose family,such as kernels of the apricot,peach,and bitter almond ,which breaks down into hydroeyanic acid,benzaldehyde,and glucose.

苦杏仁素一种糖苷，C20H27NO11，通常出现在植物种籽、蔷薇科植物的其它部分中，如杏、桃、苦杏仁的核中，可分解成水解酸、苯甲醛和葡萄糖

Plant of institute of science of state-maintaineding university of she and Australia and botanist Dr.

她是中科院昆明植物研究所的研究人员，现在澳大利亚国立大学攻读植物学博士学位，研究中国藏东南地区绿绒蒿属植物的保护生物学。

Results 1.After treated by:program freezing,the maximum load of the allografts has no evident decrease and the cell activity of allografts was preserved well,the frozen hurt after program freezing was more slight than －80℃ deepfrozen,2.No evident reject reaction can be seen during the healing process after deep frozen and the reject reaction declined as the time pass by.3.Three weeks afer the allografting,there was no significant difference between the two al lografting groups in maximum load(P＞0.05),Eight weeks later,the maximum load of the group that was preserved by liquid nitrogen after program freezing(76.60±4.67)N was better than the group that was preserved by －80℃ deepfrozen(75.99±4.20) and similar with the autografting group(76.72±2.55).4.The healing process and histological behavior of the two deepfrozen groups are similar with the autografting group,and the program freezing group is better.

结果 a经程序冷冻液氮保存方法处理后，髌腱的最大载荷无明显下降，细胞活性得到了较好的保存，组织学观察冷冻损伤较－80℃深低温保存方法轻微；b程序冷冻液氮保存处理的移植物在术后未表现明显的排斥反应，且免疫反应随时间的推移而下降；c移植后3周，各组移植物的最大载荷无显著差异(P＞0.05)，移植后8周，程序冷冻液氮保存组移植物的最大载荷(55.87±1.86)N优于－80℃深低温保存组(52.14±2.79)，而和自体移植组相近(57.70±2.76)N；d从组织学观察看，－80℃深低温保存组和程序冷冻液氮保存组移植后的愈合过程均和自体移植组相似，而程序冷冻液氮保存组的愈合过程和组织学行为更接近于自体移植组。

DNA C-value is of practical value in the forecast of the invasiveness of exotic species. However, such predictions must be made with comparisons within families because the DNA C-values vary greatly between woody and herbaceous species, between monocots and dicots, between annuals and perennials, and especially among families.

DNA C-值在预测外来物种的入侵性方面具有一定的应用价值，但是，由于在木本植物和草本植物之间、单子叶与双子叶植物之间、一年生和多年生植物之间，特别是在不同的科之间，植物的DNA C-值较明显的差异，因此，根据DNA C-值预测外来物种的入侵性，应该严格地限于同一科内的相关物种间的比较。

In recent years, many studies have suggested that the selective pressure be-tween dispersers and plants is rather weak.

然而，食果动物和植物一对一的协同进化的例证并不多见；适合种子萌发和生长的环境在时空上难以确定；食果动物和植物的进化速度不一致；植物与种子传播者的选择压力存在着高度的不对称和不平衡，加上环境因素的重要影响，这种选择压力受到极大的限制而有可能变得不显著。

Among them multi-types of body colour and special types of hosts are the most universal phenomena. In our experiment, methods of microsatellite primer PCR molecular marker and partial gene sequence analysis of mitochondrial DNA COⅠ-Ⅱwere used to analyze genetic diversity of two body colour bio-types (red bio-type and green bio-type) of green peach aphid from different plants and relationship between green peach aphid and host plants by separately selecting individuals of aphid from rape, Chinese cabbage and tobacco. The main results as follows: 1. Selecting An Ruisheng'method of extracting DNA from small sized insect, using this method can extract DNA well and steadily.

本文采用微卫星引物PCR 分子标记和线粒体COⅠ-Ⅱ部分序列分析的方法，分别选取十字花科植物中的甘蓝和油菜，茄科植物中的烟草，对不同寄主上桃蚜的红色和绿色两种体色生物型的遗传多态性及其与寄主植物的关系进行了研究，取得的主要结果如下： 1、选取安瑞生(2002)小型昆虫DNA 提取方法，能很好且比较稳定的提取桃蚜基因组DNA。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐