胡杨

One is that there is positive relativity between proline, abscisic acid content and degree of water stress.

在不同地下水位埋深条件下，胡杨体内脯氨酸和脱落酸累积过程的变化和差异表达了胡杨受干旱的程度；塔里木河下游胡杨的生长发育已受到严重的干旱胁迫。

The result showed that net photosynthetic rate in leaves of sunny positions for Populus euphratica Oliv appeared in curvilinear changes with double peaks and apparent middy depression diurnally,however,the leaves of shade positions appeared in curvilinear changes with single peaks.

结果表明：在生长季胡杨阳叶光合速率的日变化呈现双峰曲线，具有明显的光合"午休"现象，但胡杨阴叶光合速率的日变化呈单峰曲线。

During the course of water stress, along with the extension of coercion and the intimidation of the deepening,the Pn of P.euphratica and P.pruinosa experienced three phases:sharp decline-slow, rebound -down and again under moderate and serious stress condition.16 and 24 days later after water stress starting,the reason of Pn drops mainly is the stomatal limit,and 48 days later,primarily is non-sto matal limit.

3在水分胁迫进程中，随着胁迫时间的延长及胁迫程度的加深，中度和重度水分胁迫下胡杨、灰叶胡杨的净光合速率经历了急剧下降-缓慢回升-再下降三个阶段。

The results show that rising of groundwater levels after water transportation plays an important role in the decreasing in the crown loss of Populus euphratica, and the crown loss of Populus euphratica gradually increases with increasing distance from the river course. The trees crown loss was less than 10%, which mainly was distributed within 100 metres to each side from the river course. The proportion of crown loss of overmature and effete forests were 50%-75% within 200 to 400 metres.

应急生态输水后地下水位的抬升对胡杨树冠疏失度的降低产生一定的作用；总体上，胡杨的树冠疏失度随着离河道距离的增加逐步增大，而且离河道越远，疏失度增加的程度就越大；树冠疏失度小于10%的旺盛胡杨主要分布在离河道100m之内，其中多以疏失度少于50%的长势较好的胡杨为主。

Populus is Salicaceae Populus spp Asia, Central Asia is a desert area in the most widely distributed tree species, it constitutes "according to duga" Lin strength of the continental climate in arid region of verdant oasis.

胡杨是杨柳科胡杨亚属植物，是中亚荒漠区中分布最广的乔木种之一，它所构成的&杜加依&林强度大陆性气候的干旱地区形成葱郁的绿洲。

In this paper, sample plat of the long-term monitoring section Argan in the lower reaches of Tarim River is taken as research object. According to the data obtained from field investigation and laboratory analysis, the response of crown loss of Populus euphratica to ecological water transportation is analyzed.

以塔里木河下游阿拉干断面设立的长期监测样地内的胡杨为研究对象，采用野外调查实测与室内数据分析相结合的方法，研究胡杨树冠疏失度对应急生态输水的响应。

Through differential centrifugation and sucrose density gradient centrifugation,tono plast vesicles were isolated from suspension-cultured Populus euphratica cells broken by mortar and pestIe,blender or ultrasonic homogenizer.The sensitivities of H+-ATPase to NO-3,VO3-4 andNaN3,as well proton pnmping activities of membrane-bound pyrophosphatases demonstrated that tonoplast vesicles mainly distributed on the interface of 0％～25％of sucrose.

为进一步研究液泡膜及H+-ATP酶在胡杨抵御盐胁迫中所起的作用，比较了研磨、捣碎和超声破碎三种细胞破碎方法，从悬浮培养的胡杨细胞中制备液泡膜微囊的效果；并用差速离心和不连续蔗糖密度梯度离心纯化了胡杨液泡膜微囊。

Comparison of different types of stem cutting in rooting induced and analysis the cDNA clones which may be associated with the occurrence of adventitious roots of P.euphratica,the model of ARF were initial establishment of exogenous IBA controlling endogenous IAA occurred threshold and equilibrium,that is,exogenous IBA receiving by receptor of stem cutting,and transfer into the cells,then turn into active IAA by the effects of the POD enzyme.

通过对胡杨3个不定根发生调控培养体系的比较和与胡杨不定根发生可能相关的差异基因的克隆分析，初步建立IBA调控胡杨不定根发生的内源IAA阈值和激素间平衡的模型，即外源IBA通过插穗受体接收，转入细胞内并在POD酶作用下转化成具有活性的IAA，当IAA的水甲在促根的阈值内并保持相对平稳时，则有利于生根；当IAA的浓度增高超过阈值且不稳定时，则抑制不定根的发生。

Populus growth to a high degree of salinity in the soil, due to the Populus cells permeable than the average plant strong, and from the main root and lateral roots, trunk, bark and leaves to be able to absorb a lot of salt, and through the stems and leaves The excretion of salt gland secretion, when the accumulation of too much salt in the body, it can scar from the trunk section of the gap and will be automatically excretion of excess salt out to form a block of white or yellow crystal,"Populus Tears", commonly known as "Populus base."

胡杨能生长在高度盐渍化的土壤上，原因是胡杨的细胞透水性较一般植物强，它从主根、侧根、躯干、树皮到叶片都能吸收很多的盐分，并能通过茎叶的泌腺排泄盐分，当体内盐分积累过多时，它便能从树干的节疤和裂口处将多余的盐分自动排泄出去，形成白色或淡黄色的块状结晶，称&胡杨泪&，俗称&胡杨碱&。

Therefore, the initiation of Populus euphratica Oliv-based thematic tourism planning and the control detailed planning on main nodes, and the better organization on PeO-based tourism mega-event, has recently unveiled a new stage for Shaya to construct a PeO-based ecotourism demonstration-county.

沙雅县已确立了建设&生态优美、人居最佳、生活富裕、城乡文明、社会和谐的绿色生态大县&的总体发展战略。为此，近期推进胡杨主题旅游策划及主要节点的控制性规划，进一步办好新疆胡杨旅游节事活动，掀开了建设沙雅胡杨生态旅游示范县的帷幕。

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。