青海省蝗虫四新种（直翅目：蝗总科）

记述采自青海省蝗总科昆虫４新种, 即黑纹闸蝗Ｂryodema nigristria sp.n.、西宁雏蝗Chorthippus xiningensis sp.n.、海北雏蝗Ｃhorthippus haibeiensis sp.n.及黄胫拟槌角蝗Ｇomphoceroides flavutibia sp.n.。模式标本保存于陕西师范大学动物研究所。     

河北大学博物馆馆藏蝗总科的新属和新种(直翅目)

在整理河北大学博物馆馆藏的蝗总科标本中,发现1新属4新种,它们为斑腿蝗科Catantopidae的广西龙川蝗Longchuanacris guangxiensis sp.nov.,斑翅蝗科Oedipodidae的拟短腿蝗属Parahilethera gen.nov.,西藏拟短腿蝗Parahilethera xizangensis sp.nov.及淡黑纹束颈蝗Sphingonotus caerulistriatus sp.nov.,网翅蝗科Arcypteridae的拟中宽雏蝗Chorthippus parapricarius sp.nov..模式标本保存于河北大学博物馆.     

甘肃斑翅蝗科一新属新种(直翅目,蝗总科)

记述了采自甘肃肃南斑翅蝗科1新属1新种,拟皱膝蝗属Angaracrisoides gen．nov．,黑翅拟皱漆蝗An—garacrisiodes nigripennis sp．nov．,并与近缘属蔷蝗属Uvaroviola B—Bienko和皱漆蝗属Angaracris B—Bienko进行了比较。模式标本保存于陕西师范大学动物研究所昆虫标本室。     

中国台湾秃蝗亚科一新属四新种(直翅目，斑腿蝗科)(英文)

记述了采自中国台湾斑腿蝗科秃蝗亚科1新属台秃蝗属Taipoodisma gen. nov. 和4新种：红股台秃蝗Taipodisma rufifemora sp. nov., 谢氏台秃蝗Taipodisma hsiehi sp. nov., 周氏台秃蝗Taipodisma chowi sp. nov., 黑胫台秃蝗Taipodisma nigritibia sp. nov.。新属台秃蝗属Taipoodisma gen. nov.同蹦蝗属Sinopodisma Chang, 1940近似,不同之处为前胸背板后缘中央缺凹口,中隆线在沟前区不显,在沟后区留有痕迹。新属同辽秃蝗属Liaopodisma Zheng, 1990也近似,不同之处为雄性后胸腹板两侧叶分开,不毗连。新种红股台秃蝗T. rufifemora sp. nov. 后足股节内侧和下方红色可与同属其他种相区别。新种谢氏台秃蝗T. hsiehi sp. nov. 缺黑色眼后带可与同属其他种相区别。新种周氏台秃蝗T. chowi sp. nov. 同红股台秃蝗T. rufifemora sp. nov.近似,不同之处为后足股节内侧和下方非红色。新种黑胫台秃蝗T. nigritibia sp. nov. 同周氏台秃蝗T. chowi sp. nov.近似,不同之处为前胸背板沿中隆线缺黑色纵带和前翅黄褐色,缺黑色带纹。列出了该属的种检索表。     

新疆斑翘蝗科三新种（直翅目，蝗总科）

记述分布在新疆地区斑翅蝗科Ocdipodidae3新种,即蓝胫胫刺蝗Compsorhipis cyanitibia sp.nov,黑肛束颈蝗Sphingonotus peliepiproct sp.nov。及托里束颈蝗Sphingonotus toliensis sp.nov,模式标本保存于陕西师范大学动物研究所标本室。     

云南蝗属一新种及中甸拟澜沧蝗雌性记述(直翅目,瘤锥蝗科)

记述采自滇西北横断山地区云南蝗属1新种,即郑氏云南蝗Yuannanites zhengi sp．nov．,模式标本保存于云南大理学院生命科学与化学系;编写了该属的分种检索表。另记述中甸拟澜沧蝗的雌性。     

滇西曲翅蝗属一新种(直翅目:蝗总科)

本文记述采自滇西横断山区斑腿蝗科一新种,即具尾曲翅蝗Curvipennisfurculis,sp．nov．。模式标本保存于陕西师范大学动物研究所及云南大理师专生物系。     

中国蝗虫三新种及雪山雏蝗雄性记述(直翅目,网翅蝗科)

记述中国滇西北地区网翅蝗科3新种,即长翅缺背蝗Anaptygus longipennis sp.nov.、老君山牧草蝗Omocestus laojunshanensis sp.nov.、马耳山牧草蝗Omocestus maershanensis sp.nov.,另描述了雪山雏蝗Chorthippus xueshanensis Zheng et Mao的雄性.所有标本保存于大理学院生命科学与化学系.     

中国蝗虫一新纪录属和三新种(直翅目,斑腿蝗科)

记述了中国斑腿蝗科Catantopidae 1新纪录属拟庚蝗属Genimenoides Henry,1934,1新种条纹拟庚蝗Genimenoides vittatum sp.nov.;庚蝗属Genimen Bolivar,19182新种版纳庚蝗Genimen bannanum sp.nov.和郑氏庚蝗Genimen zhengi sp.nov.。编写了拟庚蝗属已知种检索表和庚蝗属中国种检索表。模式标本保存于大理学院生命科学与化学学院。     

滇、桂蝗虫新属和新种(直翅目,蝗总科)

记述采自云南西双版纳地区及广西河池地区蝗总科昆虫1新属、3新种及1新亚种,即云南板胸蝗Spathosternum prasiniferum yunnanense ssp.nov.,黑股切翅蝗Coptacra nigrifemura sp nov.,脊背蝗属Tectiacris gen.nov.,斑腿脊背蝗Tectiacris maculifemura sp.nov.及勐腊束颈蝗Sphingonotus menglaensis sp.nov..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.