凤盲蝽属一新种（半翅目：盲蝽科）

本文记述采自甘肃祁连山北麓的半翅目盲蝽科叶盲蝽亚科凤盲蝽属昆虫１新种－－祁连凤盲蝽。新种的模式标本保存在南开大学生物系。     

我国小网蝽属昆虫的研究（半翅目：异翅亚目：网蝽科）

本文记述了我国内蒙古地区网蝽科小网蝽属一新种,即内蒙小网蝽。新种的模式标本保存在内蒙师范大学生物系昆虫标本室。     

狭盲蝽族二新种记述：半翅目：盲蝽科

狭盲蝽族二新种记述（半翅目：盲蝽科）唐周怀（陕西省动物研究所,陕西省西安市７１００３２）关键词盲蝽科,狭盲蝽族,新种,分类学,中国狭盲蝽族（ＳｔｅｎｏｄｅｍｉｎｉＣｈｉｎａ）隶属盲蝽科（Ｍｉｒｉｄａｅ）盲蝽亚科（Ｍｉｒｉｎａｅ）,该族成员适应在禾本科...     

真蝽属一新种（半翅目：蝽科）

本文记述蝽科真蝽属一新种：拟太白真蝽Ｐｅｎｔａｔｏｍａ ｐａｒａｔａｉｂａｉｅｎｓｉｓ ｓｐ．ｎｏｖ．,新种与太白真蝽Ｐｅｎｔａｔｏｍａ ｔａｉｂａｉｅｎｓｉｓ Ｚｈｅｎｇ ｅｔ Ｌｉｎｇ相似。模式标本存于南开大学生物系。     

草盲蝽属中国种类纪要：半翅目：盲蝽科

本文共记述半翅目盲蝽科的常见属—草盲蝽属Lygus(s.str.)Hahn中国种类共11种。其中包括3个新种:毛斑草盲蝽L.paradiscrepans sp.nov.,西藏草盲蝽L.tibetanus sp.nov.,萧氏草盲蝽L.hsiaoi sp.nov.;1个中国新记录种:瓦氏草盲蝽L.wagneri(Remane);以及1项新组合:将poluensis Wagner由Exolygus Wagner属移入本属。文章提供了名录、分布纪录和新种描述     

中国蝽科二新种

本文记录了蝽科二新种,分别属于珀蝽属和卷蝽属文中描述了所用长度单位均为ｍｍ。     

广东薄蝽属一新种（半翅目：蝽科：蝽亚科）

记述采自广东省连州市广东南岭国家级自然保护区大东山管理站的蝽亚科薄蝽属１新种,叉头薄蝽Ｂｒａｃｈｙｍｎａ ｂｉｆｉｃｅｐｓ,ｓｐ．ｎｏｖ．,模式保存于中山大学昆虫标本馆。     

中国内蒙古齿爪盲蝽亚科新种和新纪录（半翅目：异翅亚目：盲蝽科）

本文内蒙古半翅目盲蝽科齿爪盲蝽亚科２种新,克氏点盾盲蝽和棕齿爪盲蝽,１个中国新纪录属,毛膜盲蝽属,１８６４及６个中国新纪录种,对新种进行了描述,同时记录了新纪录种的分布。     

贵州栉鞭蝽新种记述：（半翅目：异翅亚目：鞭蝽科）

本文报道贵州省新记录的鞭蝽科(Dipsocoridae)栉鞭蝽属(Ceratocombus Signoret)1新种。模式标本存放于南开大学生物系。贵州栉鞭蝽Ceratocombus guizhouensis Ren et Yang,新种(图1-7) 雄虫及雌虫均为大翅型个体,体淡棕黄色,触角、喙、各足及腹部(除尾节外)为淡黄色。     

中国真蝽属二新种(半翅目,蝽科)

记述了蝽科真蝽属2新种:苍山真蝽Pentatoma cangshanensis sp.nov.和绿角真蝽Pentatoma viridicornuta sp.nov.,新种分别与近似种做了比较,并附鉴别特种图.模式标本保存于陕西师范大学动物研究所昆虫标本室.     

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.