中国滇虫脩属及一新种记述(虫脩目：笛虫脩科：虫脩长角枝虫脩亚科)

重新建立滇虫脩属Dianphasma Chen & He, 1997 rev. stat. 为1有效属,并记载1新种：陈氏滇虫脩Dianphasma cheni sp. nov.,重新记述了滇虫脩属的特征,提供了分种检索表?     

中国淡水鱼类寄生单殖吸虫锚首虫四新种：指环虫目：锚首虫科

本文报道并叙述我国四种寄生于淡水鱼上的锚首虫,它们是:福建锚首虫、江西锚首虫、鄱阳锚首虫和钱塘锚首虫,分别寄生于鳅、(鱼勾)和(鱼骨)属淡水鱼的鳃丝上,分布在我国福建建瓯、江西鄱阳湖、浙江曹娥江、钱塘江等淡水江湖中。文内各新种和相似种列表并描述了在形态特征上的相互差別,以确定该新种的成立。     

太阳虫,钟虫和喇叭虫

太阳虫、钟虫和喇叭虫韩志泉（首都师范大学生物系北京１０００３７）自由生活的原生动物已描述的有２万多种,绝大多数属世界性分布。太阳虫、钟虫和喇叭虫就是其中的习见类群。太阳虫（Ａｃｔｉｎｏｐｈｒｙｓ）常见的有放射太阳虫（Ａ．ｓｏｌ）和多泡太阳虫（Ａ．Ｖｅ...     

中国布里隐翅虫属初记1.巨布里隐翅虫群(鞘翅目：隐翅虫科，异形隐翅虫亚科)

This paper reports 1 new species of the gigantulus group of the genus Bledius Leach from Sichuan, China. Key to the known species is given. The type specimens are deposited in the Department of Biology, Sichuan Teachers College.     

丽虫齿科在中国和越南首次发现及背突丽虫齿的重新描述（虫齿目：虫齿亚目）

首次报道丽虫齿科Calopsocidae在中国及越南的分布，并记述该科1中国及越南新记录种：背突丽虫齿Calopsocus infelix (Hagen)。该种头橘红色，胸部黄褐色，腹部紫色。翅宽，微革质，两面均布满毛。雌虫生殖突发达，外瓣具刚毛。     

中国并线隐翅虫属一新种及一新纪录（鞘翅目：隐翅虫科：胸片隐翅虫亚科）

本文报道中国并线隐翅虫属一新种，黑腹并线隐翅虫一新纪录种，红鞘并线隐翅虫。     

中国圆胸隐翅虫属一新种记述（鞘翅目：隐翅虫科：尖腹隐翅虫亚科）

记述采自我国四川省九寨沟和湖北省神农架自然保护区的圆胸隐翅虫属Tachinus,圆胸隐翅虫亚属Tachinus 1新种——东洋圆胸隐翅虫Tachinus(Tachinus)parasibiricus,sp．nov．。该新种与分布于古北区的Tachinus(Tachinus)sibiricusSharp,1888在颜色和外部形态上很相似,但根据雄性生殖器侧叶近端部无缢痕,端部l／3处明显变厚;雌性第8背板中叶之间凹入明显较浅等特征可与后者区分。正模：♂,四川省九寨沟,2001-Ⅶ-27,李利珍、赵梅君采。副模：7♂♂9♀♀,同正模;2♂♂,湖北省神农架金猴岭,2002-Ⅷ-04,李利珍、汤亮采。模式标本保存在上海师范大学生命与环境科学学院生物系昆虫标本室。     

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.