白头叶猴对夜宿石洞的选择

白头叶猴（ＰｒｅｓｂｙｔｉｓＬｅｕｃｏｃｅｐｈａｌｕｓ）栖息在广西南部的岩溶地形，夜里栖息在石洞里。白头叶猴选择夜宿石洞考虑的因素主要是安全和利于寻找食物等；出洞和入洞行为均在猴王的指挥下完成。     

黑叶猴繁殖小群的管理

黑叶猴（Ｐｒｅｓｂｙｔｉｓｆｒａｎｃｏｉｓｉ）属我国Ⅰ类保护动物,在动物园灵长目动物展出中占有独特位置。它代表了叶猴类动物的饲养方式。繁殖管理好黑叶猴,是物种保存计划中的一个重要内容。我们通过２０多年的实践,不断完善繁殖种群管理措施,使第三代黑叶猴参...     

亚洲叶猴属（Presbytis）的颅骨研究

本研究测量了亚洲叶猴８个种成年颅骨１１项变量。通过童因子方差分析、多元统计分析包括差判别分析和由判别分析筛选的变量所组成的星状图等表明,亚洲叶猴能够明显地分成４个亚属;Ｋａｓｉ与Ｐｒｅｓｂｙｔｉｓ有更密切的关系。提出了不同于前人的线系分支图。     

带有PreS的重组乙肝表面抗原在毕赤酵母中的表达

带有ＰｒｅＳ区的乙肝表面抗原（ＨＢｓＡｇ）有望成为新一代更高效的乙肝疫苗。利用毕赤属酵母（Ｐｉｃｈｉａ ｐａｓｔｏｒｉｓ）表达系统,表达了带有ＰｒｅＳ区免疫决定簇的理组乙肝表面抗原Ｓ１Ｓ、ＳＳ１和Ｓ２Ｓ。对表达产物的性质鉴定表明,产物可以形成２具有相应的Ｓ、ＰｒｅＳ１或ＰｒｅＳ２抗原性的颗粒,表达水平高于啤酒酵母（Ｓａｃｃｈａｒｏｍｙｃｅｓ ｃｅｒｅｖｉｓｉａｅ）表达系统。     

西藏林芝真蚋亚属三新种（双翅目：蚋科）

本文记述西藏林芝真蚋亚属Ｅｕｓｉｍｕｌｉｕｍ三种：凸端真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｃｏｎｃａｖｕｓｔｙｌｕｍｓｐ．ｎｏｖ．、林芝真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｌｉｎｇｚｉｅｎｓｅｓｐ．ｎｏｖ．、裂缘真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｓｃｈｉｚｏｌｏｍｕｎｓｐ．ｎｏｖ 。     

五加属学名考证及其一些新组合

本文考证了五加属学名,支持废弃不合法名称ＡｃａｎｔｈｏｐａｎａｘＭｉｑ．,强调应用合法名称ＥｌｅｕｔｈｅｒｏｃｏｃｃｕｓＭａｘｉｍ,在此基础上,将Ａｃａｎｔｌｈｏｐａｎａｘ属名下２种及１变种并入Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属名,并对Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属的４个异名作了订正。     

中国瘿蚊金小蜂属研究(膜翅目:金小蜂科)

研究了中国金小蜂科、金小蜂亚科的瘿蚊金小蜂属Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ Ｓｚｅｌｅｎｙｉ,１９４１,重新描述了中国分布的２个种：斑腹瘿蚊金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｍｉｒｉｆｉｃｕｓ（Ｇｉｒａｕｌｔ）及斑腹金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｏｒｙｚａｅ （Ｓｕｂｂａ Ｒａｏ）,编制了中国瘿蚊金小峰属分种检索表。其中,斑腹瘿蚊金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｍｉｒｉｆｉｃｕｓ （Ｇｉ     

广东滩涂经济鱼类寄生吸虫──Ⅲ、单孔科、单脏科和八睾科吸虫的研究(复殖目)

本文对广东滩涂经济鱼类寄生复殖吸虫中的单孔科ＨａｐｌｏｐｏｒｉｄａｅＮｉｃｏｌｌ,１９１４,单胜科ＨａｐｌｏｓｐｌａｎｃｈｎｉｄａｅＰｏｃｈｅ,１９２６和八睾科ＯｃｔｏｔｅｓｔｉｄａｅＹａｍａｇｕｔｉ,１９７１吸虫进行研究,其中长尾亚科Ｅｌｏｎａｉｎｕｒｉｎａｅ和鲻长尾吸虫Ｅｌｏｎｇｉｎｕｒｕｓｍｕｕｇｉｌｕｓ分别作为单孔科的新亚科和新属新种;雄囊新单脏吸虫Ｎｅｏｈａｐｌｏｓｐｌａｎｃｈｎｕｓｃｉｒｒｕｓａｃｉ作为单脏科的新属新种;天竺鲷八睾吸虫Ｏｃｔｏｔｅｓｔｉｓａｐｏｇｏｎｉ作为八睾科、八睾吸虫属Ｏｃｔｏｔｅｓｔｉｓ（Ｗａｎｇ,１９６３）Ｙａｍａｇｕｔｉ,１９５１的新种。     

我国熊类资源现状

熊科（Ｕｒｓｉｄｅａ）动物世界上共有６个属,我国的熊科动物仅包括３个属,即棕熊属（Ｕｒｓｕｓ）,黑熊属（Ｓｅｌｅｎａｒｃｔｏｓ）和马来熊属（Ｈｅｌａｒｃｔｏｓ）。其中,棕熊Ｕｒｓｕｓａｒｃｔｏｓ全球共分９个亚种,我国有４个亚种：普通棕熊Ｕ．ａ．ａｒｃ...     

THREE NEW SPECIES OF GENUS Stephanitis FROM CHINA (Hemiptera: Heteroptera: Tingidae)

本文报道采自中国西部的冠网蝽属（ＳｔｅｐｈａｎｉｔｉｓＳｔａｌ）３新种：祁连冠网蝽ＳｔｅｐｈａｎｉｔｉｓｑｉｌｉａｎｅｎｓｉｓＢｕｓｐ．ｎｏｖ．,采自甘肃省天祝县乌鞘岭;萧氏冠网蝽ＳｔｅｐｈａｎｉｔｉｓｈｓｉａｏｉＢｕｓｐ．ｎｏｖ．,采自四川省小金县和雅安县,曾被错误鉴定为“Ｓｔｅｐｈａｎｉｔｉｓｆａｓｃｉ－ｉｃａ－ｒｉｎａＴａｋｅｙａ”（萧采瑜等,１９８１）;狭冠网蝽ＳｔｅｐｈｎｉｔｉｓａｎａｇｕｓｔａｔａＢｕｓｐ．ｎｏｖ．采自甘肃省武都县和武威县。模式标本均保存在南开大学生物系昆虫标本室。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.