生长物质

On the other hand, these activities control the amout and quality of freshwater, for example, water used for agricultrue and industry increase, build up reservoir and unloading directly change the balance of the ecological eviromental composition such as salinity, sand, nutrious and microelement in soil, so that control the change of heteroptera Kitog.

人类活动一方面通过建设虾池、大坝及油井平台等活动直接占用了碱蓬生长的土地，另一方面它又通过控制上游淡水的水量与水质，如农业与工业用水的增加、建水库、直接排污等活动改变着区域土壤的盐度、泥沙成分、营养物质、微量元素等生境组分的平衡，进而控制碱蓬的消长。

The comparative study on vegetation background survey of the stationsand the comparison on level of phytocoenology on zonal habitats indicates thatthe diminishment of the numbers of families,genus and species,compositionof life types,diversity of communities and habitats,;and the increscence in theproportion of photosynthesis functional groups of C3/C4 plant,richness ofspecies,density of tussock and tiller,diversity of species,evenness,leaf areaindex,leaf area duration,dry matter production of communities alongside thelatitude increasing and the temperature decreasing;and the dynamic curve ofthe community productivity also tend to steadily increase along with thetemperature going up and the heat accumulation gradually in moderate-temperate steppe station from violent fluctuation along with seasonal badly-distribution of precipitation in warm-temperature steppe station;manifestingthat transformable tendency of productivity pattern of the community from morevigorous net assimilation,sparser and higher crops stricture of tussock and tiller,and possession on more resources by less species inclined to thicker in densityof crops,superior effectiveness of multi-leaves and pattern of multi-speciesresource sharing,reflecting that bigger disparity of the vegetationcharacteristics and the style of the community growth in the two differentthermal-type steppe stations owing to background of natural-historicenvironment and combination of water and heat.

内蒙古草原区两个不同热量型研究站点植被本底调查和显域地境群落学水平的比较研究表明：随纬度增加和气温降低，植物科、属、种的数目，生活型组成，群落类型和生境类型的多样性均趋于减少，而C3/C4光合功能群比值和群落的物种丰富度，株丛密度，物种多样性，群落均匀度，叶面积指数，叶面积持续时间和群落干物质生产能力均趋于增加，群落生产力动态曲线从随天然降水的季节分布不均而剧烈波动趋向于随气温逐渐升高和热量逐步积累而稳定增长，显示出两站点植物群落从较为旺盛的群体净同化作用、较为稀疏高大的群体结构和少数物种占有较多群落资源的生产力格局向较高的群体密度、优良的多叶性能和多物种资源共享的群落生产力格局转变，反映出在内蒙古草原区不同的自然历史环境背景和不同的温度条件及其水热组合状况影响下，两个不同热量型草原站点植被性质的分异特征和显域地境群落生长模式的较大差别。

When setting catharanthus roseus laminae, petiole, hypocotyl as explants, the effects of different kinds of homogeneity and concentrations of growth adjustive matter on inducing callus were different.

以长春花幼嫩叶片、叶柄、下胚轴为外植体，不同种类、不同浓度的植物生长调节物质及其组合对愈伤组织诱导的效应均不相同。

They were offered the control ration,and in other groups a portion of the control ration was replaced by Leucaena Leucocephala treated with 1.2% FeCl_3 or untreated,i.e.,20% LL,30% LL,20% treated LL,and 30% treated LL ration in a 5 weeks feeding trial.

银合欢是一种热带和亚热带地区的速生木本豆科饲料树种，它不仅生长快、产量高、粗蛋白质含量高达22%~29%，如春叶达26.83%，夏叶27.92%，秋叶27.51%，同时还含有多种必需氨基酸、丰富的胡萝卜素和其它营养物质(表1，2)。

The amount of Ca8-P in soil with CRMP treatments was lower than that of CMP treatments. The changes of the amount of Al-P, O-P, Fe-P and Ca10-P in soil were neglectable during the course of experiment.3. The shoot and root weight of sorghum increased through application of phosphorus, in addition, The increase of sorghum shoot and root weight was greater than that of common monoammonium phosphate due to the slow release of nutrients from CRMP. The accumulative uptake of phosphorus in shoot and root with CRMP treatment was greater than that with CMP treatment in low (75 mg P2O5/kg soil ) and high（150mg P2O5/kg soil）rates, especially on middle stage, and in high phosphorus rate, this advantage was more obvious than that in low phosphorus rate.

磷肥的施入，促进了高粱地上部和根部的生长，而控释肥由于缓慢释放养分，与作物吸收相一致，更能促进高粱的地上部和根部干物质积累；对于高粱地上部及根部的磷素累积，在两种施磷水平下控释处理地上部及根部磷素累积量均大于非控释处理，尤其是在中期，而且高磷水平下优势更加明显，低磷控释处理的磷素累积量能达到高磷非控释的累积量，即减少一半的用量即能达到同样的效果；在氮、钾、钙、镁相同的水平下，控释处理比非控释处理更能促进地上部及根部氮、钾、钙、镁累积量，这种优势在中期表现最明显。4。

TGF-β s are multifunctional cytokines with a broad range of biological activities. TGF-β s belong to a family of related proteins, which demonstrate various degrees of amino acid sequence homology; this protein family is called the TGF-β superfamily. Other members of this family include the bone morphogenetic proteins, inhibin, activin and Mullerian substance.

TGF-β类生长因子是一类具有广泛生物学活性和重要临床应用价值的细胞因子，包括多种蛋白因子，它们在氨基酸结构上具有不同程度的同源性，共同构成了TGF-β超家族，包括BMPs、活化素、抑制素和缪勒氏物质等。

HAP could be synthesized and used as a artificial bone replacement material, which acted as a scaftold for the skeletal ingrowth; and autogenous red bone marrow had the osteogenous cells and substances which could form new bone.

国外文献报道可采用人工合成HAP并用作骨的替代物，起到骨生长的支架作用；而自体红骨髓（Bone-Ma-rrow简称BM）含有成骨功能的细胞和物质，起成骨作用。

There are four kind of isoforms of endothelin in human and other mammals named ET-1, ET-2, ET-3 and ET-β, which are slightly different in construction and pharmacological effect. In human beings, ET-1 is the dominative subtypes. ET-1 remains in blood at a low level about 5ng per liter on physical state. It is synthesized, stored, released and metabolized locally. The half-life of ET-1 is about 1 hour. ET-1 is the most potent vasoconstrictive factor till now, and it is more functional in vein than in artery. In vascular bed, there are two kind of ET receptors. Type A mainly located in smooth muscle cells, whereas type B in endothelial cells. The latter can stimulate intimal hyperplasia via a parasecretion way and activate some oncogenes such as c-fos and c-myc and then enhance their expression. These alterations result in constriction of blood vessels, thus the SMC steps into proliferate state from silent state.

人及哺乳动物体内有四种结构及药理学性质略有差异的异物体，分别为ET-1、ET-2、ET-3、ET-β，而在人主要是ET-1，在生理条件下，ET-1在血浆中含量较低，约为5ng〓，故ET-1不是一个循环激素，而是局部合成释放，局部起作用的活性物质，半衰期约1小时，ET-1是目前已知的最强的血管收缩剂，对静脉的作用比动脉强，在血管床，ET受体有A、B两型，A型主要分布在平滑肌细胞，B型主要分布在内皮细胞，它可以通过旁分泌途径刺激内膜增生，具有有丝分裂原效应，可以激活某些癌基因如C-fos、C-myc使其表达增强引起血管收缩，使静止期SMC进入增殖期，还可以通过信号传导途径，与bFGF、GTF-β、PDGF等生长因子协同作用，起共有丝分裂原作用。

At early stage of cancer cell formation, provoked autophagy help to eliminate damaged cell organelle、and degrade the noxious substance in endochylema(eg: peroxidate)as well, pretect normal cells from cancerization.Autophagy level modulation might be cooperation or rivalry with chemotherapy to cancer cells compares to single use of chemotherapy drugs, apoptosis rate of cancer cells fluctuates with autophagy level.

癌细胞形成早期刺激自噬能够清除受损细胞器，分解细胞内过多的有害物质，阻止正常细胞向癌细胞转化，调控自噬的表达和化疗药物联合对肿瘤细胞的生长有协同或拮抗作用，表现为与单纯用化疗药物相比，调控自噬表达后肿瘤细胞的凋亡率发生了变化。

Pesticidal chemicals are in the plastic casing of the bed and chemicals have probably been added to the water to prevent the growth of algae, fungi and bacteria.

因水床的塑料壳体中含有杀虫剂，而且水床的水中可能增添了化学物质以防止藻类、菌类与细菌的生长。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。