中国斜翅蝗属的研究及一新种记述（直翅目：斑腿蝗科）

记述斜翅蝗属Eucoptacra Bolivar的研究历史、在中国分布的种类及1新种,即斑腿斜翅蝗E.maculifemura sp.nov.,该新种近似于秉汉斜翅蝗E.binghami Uvarov及大眼斜翅蝗E.megaocula Wang et al.,主要区别于上2种为颜面隆起在触角之间部分的宽度为眼间距宽的1.5倍;后足第1跗节明显宽于第3跗节;后足股节外侧具3个大黑斑。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。     

窝蝗属一新种记述（直翅目：蝗总科：剑角蝗科）

本文记述剑角蝗科窝蝗属一新种:甘肃窝蝗Foveolatacris gansuacrisis sp.nov.采自甘肃省天祝县。模式标本保存在中国科学院上海昆虫研究所。     

中国窝蝗属一新种：直翅目：蝗总科：剑角蝗科

本文了剑角蝗科窝蝗属１新种：郑氏窝蝗Ｆｏｖｅｏｌａｔａｃｒｉｓ ｚｈｅｎｇｉ,ｓｐ．ｎｏｖ。,采自甘肃省南县宝瓶河牧场;并据此对属征作了必要的修订,给出了分种检索表。模式标本保存于陕西师范大学动物研究所。     

欧亚大陆裸蝗亚科的分类研究（直翅目: 蝗亚目: 蝗总科）

本文对欧亚大陆裸蝗亚科(Conophyminae)进行了系统的分类研究, 将其分为4个族, 其中包括3个新族, 即贝氏蝗族(Bienkoini tribe nov.)、庚蝗族（Genimenini tribe nov.）和普乐氏蝗族 （Plotnikovini tribe nov.）, 记述了一新属--原无翅蝗属Eozubovskya gen. nov., 并附已知4族25属的检索表。将该亚科中原有3个具翅的属（Khayyamia Kocak, 1981, Conophymacris Willemse, 1933 和Zagrosia Descamps, 1967）移出, 归入秃蝗亚科（Podisminae）。     

中国剑角蝗科二新属二新种的记述(直翅目:蝗总科)

自1928年Rehn建立鸣蝗属Mongolotettix后,在我国先后发现了条纹鸣蝗M.japonicus vitattus(Uv.)、异翅鸣蝗M.anomopterus(Caudell)和青海鸣蝗M.qinghaiensis Yin。我们在整理鸣蝗属标本过程中,发现青海鸣蝗具有头侧窝,认为应另建新属:窝蝗属Foveolatacris;另外,还发现在外形上介于鸣蝗属和直背蝗属EuthystiraFieb.之间的种类,亦应另立新属:迷蝗属Confusacris。现分别将新属和新种记述如     

吉林省异爪蝗属一新种(直翅目:蝗总科)

作者在整理生物系动物标本室蝗虫标本时,发现异爪蝗属一新种,现报道如下。本文长度单位为mm。 左家异爪蝗Euchorthippus zuojianus新种 雄性:体型中等偏大。头顶向前倾斜,侧面观颜面向后倾斜。头侧窝明显,长方形,长为宽的3倍。颜面隆起较狭,两侧缘隆线明显,中央具纵沟。头预前缘近乎直角。头顶     

胄蝗属一新种及其染色体组型与带型分析(直翅目:蝗总科)

胄蝗属(Stolzia Willemse)的种类,已知分布于菲律宾、印度尼西亚、马来西亚及我国等地区。在我国已知仅一种,即海南胄蝗Stolzia hainanensis(Tinkham).作者等于1985年9月,在海南省尖峰岭地区采集时,采得胄蝗属一新种,我们同时对该种蝗虫的染色体组型和带型进行了观察,现记述如下。 模式标本保存于陕西师范大学生物系蝗虫研究室。 尖峰胄蝗Stolzia jianfengensis新种 雄性:体中小型,密具皱纹和刻点。头顶近平,狭三角形,突出于触角基节之前,眼间距极狭,其最狭处狭于触角基节的宽度;颜面侧观倾斜,在触角基部之间的下方略凹曲,颜     

马来西亚蝗科及一新种记述（直翅目：蝗总科）

记述了采自马来西亚的蝗科6亚科22属30种,包括一新种Vitalisia bangiensus sp. nov.。 并首次发现和描述了Sedulia perakensis Willemse的雄性及Eucoptacra minima Ramme和Pagdenia rufipes Miller的雌性。还发现Meltripata bolivari Willemse 和Pagdenia rufipes Miller具二型：全翅型和退化翅型。提供了马来西亚已记录属和种的检索表。     

吉林省异爪蝗属蝗虫一新种（直翅目：蝗总科）

报道了采自吉林省长岭县的异爪蝗属Euchorthippus一新种,即长岭异爪蝗E.changlingensis sp.nov.,并与其近似种做了比较,模式标本保存于东北师范大学生命科学学院生物系动物标本室。     

新疆西部雏蝗属一新种记述（直翅目：网翅蝗科）

记述采自新疆西部网翅蝗科雏蝗属 Chorthippus 1新种,即新源雏蝗 Ch. xinyuanensis sp. nov.。新种近似于狭窝雏蝗Ch. foveatus Xia & Jin, 1982和长角雏蝗Ch. longicornis (Latreille),1804。与二者的主要区别为:前胸背板沟前区与沟后区等长;前胸背板侧隆线间最宽处为最狭处的1.7倍;前翅到达第6节背板中部(♂);中脉域约与肘脉域等宽(♂)。模式标本保存于陕西师范大学动物研究所标本室。     

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.