中国大刀螳属研究(螳螂目：螳科)

中国大刀螳属研究（螳螂目：螳科）王天齐（中国科学院上海昆虫研究所上海２０００２５）大刀瞠属Ｔｅｎ。Ｊｅｒａ是较常见的一类螳螂,种类虽少,但种群数量较大,分布较广,是生物防治很有潜力的类群之一,目前在种的鉴定方面存在许多困难和混淆之处。长期以来,由于种...     

云南省石纹螳属一新种（螳螂目：螳科）

本文记述采自云南西双版纳的石纹螳属一新种,云南石纹螳Ｈｕｍｂｅｒｔｉｅｌｌａ ｙｕｎｎａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,本种与老挝石纹螳Ｈｕｍｂｅｒｔｉｅｌｌａ ｌａｏｓａｎａ Ｂｅｉｅｒ近似,但额盾片具一条连续的黑色横带,前胸背板近后缘处具２个较明显的瘤状突起,前足胫节具１１枚内列刺而与后者相区别。     

云南华小翅螳属一新种(螳螂目:螳科)

记述采自云南大理苍山的螳螂1新种,即云南华小翅螳Sinomiopteryx yunnanensis sp.nov.,模式标本保存于大理学院生命科学与化学学院。     

秦岭山区静螳属一新种(螳螂目:螳科)

记述采自陕西的静螳属Statilia Stal,18771新种：杨氏静螳Statilia yangi Niu,Hou et Zheng,sp．nov．。该新种近似黄褐静螳S．flavobrunnea Zhang et Li,1983和顶带静螳S．occipivittata Yang,1997,但后翅前缘红褐色：雄外生殖器形状不同。     

滇西横断山区屏顶螳属一新种(螳螂目:长颈螳科)

记述采自滇西地区螳螂1新种,即小屏顶螳Kishinouyeum parvula,sp．nov．。模式标本保存于大理学院生命科学与化学系。     

中国原螳属一新种记述（螳螂目：花螳科）

记述采自云南西部螳螂目昆虫1新种,即斑原螳Anaxarcha maculata,sp.mov.。模式标本保存于大理师范高等专科学校生物系。     

中国花螳属一新种记述（螳螂目：花螳科：花螳亚科）

中国花螳属一新种记述（螳螂目：花螳科：花螳亚科）王天齐,刘宪伟,殷海生（中国科学院上海昆虫研究所,上海市２０００２５）关键词中国,螳螂目,花螳科,花螳属,新种花螳属Ｈｙｍｅｎｏｐｕｓ由Ｓｅｒｖｉｌｌｅ建立于１８３１年,隶属于花螳科Ｈｙｍｅｎｏｐｏｄｉ...     

中国新纪录属——瘤螳蛉属一新组合和澳蜂螳蛉属中国三新纪录种(脉翅目,螳蛉科)

首次报道了瘤螳蛉属Tuberonotha在中国的分布,对原"华安螳蛉Entanoneur asinica Yang,1999"进行了修订和重新描述,建立新组合华瘤螳蛉Tuberonoth asini cacomb.nov.;报道了中国螳蛉另一属——澳蜂螳蛉属Austroclimaciella的中国3新纪录种:吕宋澳蜂螳蛉A.luzonica(Weele)、小褐澳蜂螳蛉A.subfusca(Nakahara)和韦氏澳蜂螳蛉A.weelei Handschin,并对拉氏澳蜂螳蛉A.lacolombierei(Navás)进行了重新描述。编写了中国澳蜂螳蛉属检索表,首次对该两属的外生殖器进行了解剖描述和绘图。研究标本保存在中国农业大学昆虫标本馆(CAU)和中国科学院动物研究所动物标本馆(IOZ)。     

广腹螳和中华大刀螳卵块孵化的比较研究

广腹螳平均卵块重和含卵量少于中华大刀螳 ,含卵量与卵块重呈正相关 ,平均孵化率分别是5 8 94%和 91 71 %。恒温条件下 ,广腹螳卵块平均孵化期分别为 5 6 2 2天 (2 0℃ ) ,3 0 71天 (2 5℃ )和 2 6 3 7天 (3 0℃ ) ,发育起始温度 1 2 65℃ ,有效积温 42 9 77日·度 ;中华大刀螳卵块平均孵化期分别为 5 0 9天(2 0℃ ) ,2 8 0 9天 (2 5℃ )和 2 1 77天 (3 0℃ ) ,发育起始温度 1 2 90℃ ,有效积温 3 62 42日·度 ;广腹螳卵块恒温孵化期短于相应变温组 ,中华大刀螳卵块恒温孵化期长于相应变温组。     

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.