First , the morphology , physiology of seed , biological traits , geographic distribution , ecological and community characteristics , karyotypes , nitrogenase activity of root nodules and chemical constituents of e . mollis were reviewed , respectively 本文对翅果油树的形态特征、种子生理生化、生态学特征、染色体数目、群落生态、生物学特性、固氮生物学以及矿物质和化学成分等方面研究进行了综述。
The nearest neighbors of each individual and the distances between each individual - neighbor pair in elaeagnus mollis communities were obtained by using the nearest neighbor ' s analysis . based on the primary results above , the spatial pattern and interspecific segregation in the communities were studied by x2 test with a subtable method of a n n nearest - neighbor contingency table 应用最近邻体法判定每个个体的最近邻体植株，得到每个基株-最近邻体种对的距离，进而采用n n最近邻体列联表的截表法，研究了翅果油数群落的种间分离。
The average number of alleles per locus ( a ) , percentage polymorphic loci ( p ) , observed heterozygosity ( ho ) and wright ' s fixation index ( f ) is 2 . 2 , 77 . 9 , 0 . 433 , - 0 . 138 , respectively . the species also had higher variation than that of the other woody angiosperms widespread . moreover , e . mollis has higher population genetic variation than that of 26 long - lived woody endemics with narrow geographic distributions Biosys - 2软件计算得知，在翅果油树种群中，每个位点等位基因的平均数a = 2 . 2 ，多态位点百分率p = 77 . 9 ，遗传多样性he = 0 . 375 ，遗传多样性水平明显高于蜂媒植物，而且也比其它的广布木本被子植物的遗传多样性水平为高。
Second , the population genetic structure and genetic diversity of e . mollis were studied by using allozyme eletrophoresis and the electrophoretic data for 6 loci from 3 populations being xiangning , yicheng and pinglu populations in shanxi were got . the level of polymorphism was relatively higher than that of the insect - pollinated outcrossing species ( he = 0 . 375 ) 用等位酶电泳法和biosys - 2软件对山西翅果油树种群的遗传结构和遗传多样性进行了研究，通过对3个种群的6个等位酶位点的电泳分析，结果表明： 5个位点为多态位点， 1个单态位点。
Elaeagnus mollis is one of the larger shrubs and dwarf trees , being an endemic to china and one of the state - protected two - grade rare and threatened plants , in china , elaeagnus mollis is only distributed in both shanxi and shaanxi , especially distributed mostly the south of luliang mountains and the midst and west of zhongtiao mountains , shanxi 翅果油树( elaeagnusmollis )是我国特有种，为大灌木或小乔木，是国家2级濒危保护植物。在我国，翅果油树仅在山西和陕西两省分布，尤以山西吕梁山南端和中条山中、西段分布较为集中。
Gene flow estimates among populations were higher even though the minimum geographical distance between any pair of populations is over 60km and could be attributed to the activity of bee - pollinators locally . we show the reason of high gene flow ( nm = 37 ) that it may result from the mechanism of pollination of e . mollis 根据间接法测得的基因流nm = 37 ，说明虽然任何两个种群之间的地理距离超过60km ，但种群间仍然有很高的基因流，这可能是由于大量的蜂群存在于当地的原因。
The different organs of elaeagnus mollis diels were used in this experiment as the explants . after establishing the aseptic propagation system , the aseptic tube stems and leaves were used to study the effect of different exogenous hormones combination and different culture conditions on organgenesis . the optimum medium and culture condition was screened for fast propagation of elaeagnus mollis diels 本实验选材为胡颓子科胡颓子属的翅果油树，在建立起无菌繁殖系的基础上，分别以试管无菌茎段和叶片为材料，研究了不同外源激素配比及不同培养条件对其器官分化的影响，从中筛选出适合翅果油树快速繁殖的最适培养基和培养条件。
Based on these results , the strategies for conservation e . mollis population to prevent the isolation and fragment of the populations and maintain the high genetic variation among the populations . moreover , it should be avoid the decline of gene flow was resulted from the isolation of the populations so that resulted in the differentiation and genetic decline of the population . finally , it should be adopt some method to spread continuous distribution and extend genetic diversity of the population 针对翅果油树的遗传结构和遗传多样性的研究结果，提出了保护翅果油树种群的策略：维持现有翅果油树种群高的种内遗传变异水平，遏制由于人为原因而导致的翅果油树种群隔离或片段化的趋势，防止由于种群隔离造成基因流降低，从而引起种群分化和种群的遗传衰退，并采取适当措施扩大种群的连续性和种群内的遗传多样性水平。
