西藏拟无声蝗属一新种(直翅目,网翅蝗科)

记述采自西藏拉萨河地区拟无声蝗属1新种,直缘拟无声蝗 Pseudoasonus orthomarginis sp. nov.。新种近似于白玉拟无声蝗Pseudoasonus baiyueusis Zheng,1990。主要区别为:1)前胸背板沟前区长为沟后区长的1.75倍;2)前翅顶端尖锐;3)雌性中胸腹板侧叶间中隔宽为长的2.5倍;4)前胸背板后横沟不切断中侧隆线。附有拟无声蝗属分种检索表。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。     

中国山东束颈蝗属一新种(直翅目,蝗总科,斑翅蝗科,斑翅蝗亚科)

记述采自中国山东斑翅蝗科束颈蝗属Sphingonotus Fieber,18521新种,烟台束颈蝗Sphingonotus yantaiensis sp.nov.。新种同蒙古束颈蝗Sphingonotus mongolicus Saussure,1888近似,其区别特征为:前胸背板沟后区长为沟前区长的1.6倍;中胸腹板中隔宽为长的1.3～1.4倍;后足股节长为最宽处的3.6～3.7倍;后足胫节内侧蓝色;后翅黑纹宽,端部不内弯。模式标本保存于山东农业大学植保学院,泰安。     

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。     

青海省石栖蝗属一新种（直翅目：网翅蝗科）

记述采自青海省河卡山地区石栖蝗属1新种,即青海石栖蝗Saxetophilus qinghaiensis sp.nov.,该新种近似于甘肃石栖蝗Saxetophilus gansuensis Wang et al.,2006及米氏石栖蝗Saxetophilus mistshenkoi Naumovitsh,1988。主要区别为:1)前胸背板沟后区侧隆线间最宽处为其长度的3.30-3.75倍(♂)或3.00-3.60倍(♀);2)中胸腹板侧叶间中隔宽大于侧叶最宽处。附有石栖蝗属分种检索表。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。     

江苏网翅蝗科—新属一新种（直翅目：蝗总科）

记述了采自江苏泗阳县网翅蝗科1新属－苏蝗属Suacris gen.nov.及1新种－Suacris siyan-gensis sp.nov.。该新属近似于牧草蝗属Omocestus I.Bol.，其主要区别特征为：前胸背板侧隆线微微弯曲，最宽处为最窄处的1.6-1.8倍；前翅肘脉域几乎等宽或略宽于中脉域；鼓膜器雄性宽卵形、雌性狭缝状。该新属也近似于拟草地蝗属Stenobothroides Xu et Zheng，其主要区别特征为：侧隆线明显且弯曲；雄性腹部末节无尾片；雄性下生殖板长锥形。新种模式标本保存于中国科学院西北高原生物研究所。1 苏蝗属，新属Suacris gen.nov.模式种：泗阳苏蝗Suacris siyangensis sp.nov.正模：1♂；副模：1♀，江苏泗阳，1957－Ⅸ－16，采集者未知。体小型。头大而短，较短于前胸背板。头侧窝明显，呈长方形。颜面向后倾斜。中单眼较小于侧单眼。触角丝状，基部触角节宽大于长，向端部触角节渐渐变狭。前胸背板中隆线明显，侧隆线在沟前区微微弯曲，其最宽处约为最窄处的1.6-1.8倍；前胸背板后级中央钝角形。前、后翅发达，超过后股节中部，前翅顶端圆形，无凹陷，前翅肘脉域几乎等宽或略宽于中脉域。中、后胸腹板侧叶全长均明显地分开。后足股节内侧具发音齿，可与前翅纵脉磨擦发音。后足胫节缺外端刺。鼓膜器：雄性宽卵形，雌性宽缝状。     

中国湖南蹦蝗属一新种（直翅目：斑腿蝗科：秃蝗亚科）

记述采自中国湖南的蹦蝗属Sinopodisma Chang,1940一新种。新种湖南蹦蝗Sinopodisma hunanensis sp.nov.同笋子山蹦蝗S.sunzishanensis Zheng,Shi et Chen,1994近似,区别特征为前胸背板沟前区为沟后区长的2.3倍;中胸腹板中隔长为最狭处的2倍;前翅超出腹部第1节背板的后缘;后足股节黄褐色;阳茎基背片锚状突高于前突。模式标本保存于河北大学自然博物馆。     

中国台湾蹦蝗属三新种及种检索表（直翅目，蝗总科，斑腿蝗科，秃蝗亚科）（英文）

记述了中国台湾蹦蝗属Sinopodisma Chang, 1940 3个新种。新种黄氏蹦蝗Sinopodisma huangi sp. nov. 同素木蹦蝗S. shirakii (Tinkham, 1936) 近似,但前胸背板的眼后带下缘具长方形黑斑和体较大,体长雄性为21.3~21.8 mm,雌性29.3 mm。 新种徐氏蹦蝗Sinopodisma xui sp. nov. 近似黄氏蹦蝗Sinopodisma huangisp. nov.,不同之处为前胸背板沿中隆线缺黑色纵带纹,后缘中央具浅的凹陷,前胸背板黑色眼后带下方具倾斜纹, 腹板中隔长等于最狭处。新种杨氏蹦蝗Sinopodisma yangi sp. nov. 近似台湾蹦蝗formosana (Shiraki, 1910),不同之处为体较细,黑色眼后带在前胸背板下缘具长方形突出带,向后到达腹部未端,腹板中隔长为最狭处的1.2 倍。列出了产于台湾的蹦蝗属8个种的检索表。     

黑龙江省雏蝗属一新种：（直翅目：蝗科）

作者于1989年8月间在黑龙江省克山进行了蝗虫调查。标本经整理鉴定,发现雏蝗属1新种。模式标本保存在东北师范大学生物系动物标本室。克山雏蝗Chorthippus keshanensis,新种(图1-5) 雄性:体小型。头部较大,头侧窝明显,长方形,长为宽的2.8倍。颜面侧观向后倾斜,同头顶组成锐角,颜面隆起具纵沟,向下逐渐宽平。复眼卵形,纵径为横径的1.4倍,为眼下沟长的1.1倍。触角丝状,超过前胸背板后缘,中段一节长约为宽的1.8倍。前胸背板前缘近平直,后缘弧形;中隆线明显,侧隆线在沟前区向内弧形弯曲,沟     

中国外斑腿蝗属两新种(直翅目,蝗总科,斑腿蝗科,斑腿蝗亚科)

记述了采自中国台湾斑腿蝗科外斑腿蝗属Xenocatantops Dirsh,1953的2新种.台湾外斑腿蝗X.taiwanensis sp.nov.近似Xenocatantops sauteri(Ramme,1941),区别特征为前翅较长,超过后足股节中部,到达肛上板的中点;颜面隆起具纵沟,两侧近平行,中部微缩狭;前胸腹板突圆柱形,端圆形.长翅外斑腿蝗X.longipennis sp.nov.近似Xenocatantops luteitibia Zheng et Jiang,2002,区别特征为后足股节粗壮,长为最宽处的3.7倍;触角中段一节的长为宽的1.1～1.3倍;前胸背板缺小黑点.并附外斑腿蝗属中国已知种的检索表.模式标本保存于国立自然科学博物馆,台中.     

新疆蝗虫一新种(直翅目：蝗总科)

本文记述分布在新疆的网翅蝗科一新种。模式标本保存在中国科学院动物研究所。赛里木毗蝗E。mippussay。mensisLiu,新种（图1）雌性体小型。头短小,其长明显短于前胸背板。颜面明显向后倾斜,颜面隆起自上向下渐宽,全长具明显纵沟。头顶较短,三角形,顶端是钝圆形,侧缘隆线明显,背面低凹;头顶在复眼前的最宽处约为颜面隆起触角间宽的2倍。头侧窝明显,前狭后宽,其长约为宽的1．5～2倍。触角丝状,其顶端到达或不到达前胸背板的后缀。前胸背板前缘平直,后缘呈弧形向外突出;中隆线明显;侧隆线明显,侧隆线间最宽处约为最狭处的2倍…     

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.