河南蚱属二新种记述(直翅目:蚱科)

记述采自河南省蚱科二新种,即鸡公山蚱Tetrix jigongshanensis sp. nov.和突背蚱Tetrix glochinota sp. nov..鸡公山蚱近似于凹额蚱Tetrix cavifrontalis Liang, 1998, 主要区别为:1)头顶前缘平直;2)侧面观,头顶与额面隆起呈钝角形;3)侧面观,额面隆在侧单眼前直,不凹陷;4)侧观,前胸背板上缘呈弧形;5)前胸背板前缘钝角形突出;6)后突到达后足股节中部;7)后翅略不到达后突顶端;8)中足股节明显宽于前翅宽.突背蚱近似于仿蚱Tetrix simulans(B.-Bienko, 1929)及云龙蚱Tetrix yunlongensis Zheng et Mao, 2002, 其与二者的区别为:1)头顶前缘平直;2)侧面观,背板上缘前半部球形突出,后半段平直;3)后突到达后足股节顶端.其区别于前者为:1)侧面观,额面隆起在侧单眼前凹陷;2)中足股节宽于前翅等宽.其区别于后者为头顶宽为一眼宽的1.7倍.模式标本保存于陕西师范大学动物研究所昆虫标本室.     

广西九万山地区蚱属一新种(直翅目:蚱总科)

记述采自广西九万山地区蚱科蚱属Tetrix昆虫1新种,即断隆蚱Tetrix interrupta sp.nov..该新种近似于金沙江蚱Tetrix jinshajiangensis Zheng,2001,主要区别为:(1)头顶前缘平直,不突出于复眼之前;(2)触角着生于复眼下缘之下;(3)肩部之间不具一对短纵隆线;(4)中足股节下缘近平直,密具细毛;(5)中足股节的宽度与前翅能见部分的宽度相等;(6)后足股节上侧中隆线具较大的锯齿.模式标本保存在陕西师范大学动物研究所标本室.     

云南东部蚱属一新种记述（直翅目：蚱总科：蚱科）

记述采自云南东部地区蚱属1新种,即南盘江蚱Tetrix nanpanfiangensis,sp．nov．。该新种近似于桂北蚱Tetrix guibeiensis Zheng,Lu and Li,2000,主要区别为本新种：1）侧观头顶与颜面隆起成直角形;2）颜面隆起在侧单眼处略凹陷;3）前胸背板前缘平直：4）侧观背板上缘肩前弧形,其后平直;5）肩部不具1对短纵隆线;6）第1跗节下之第3垫大于第1、2垫。新种与丁氏蚱Tetrix tinkhami Zheng et Liang,1998也近似,但新种后翅不到达后突的顶端,中足股节宽度明显狭于前翅宽。 正模：♂,云南陆良县,25．1°N,103．8°E,2000m,2006-Ⅷ-10,邓维安采;副模：3♂♂,9♀♀,同正模;3♂♂,3♀♀,云南沾益县,25．6°N,103．8°E,2000m,2006-Ⅷ-12,邓维安采：4♂♂,4♀♀,云南宣威市,26．2°N,104．1°E,2000m,2006-Ⅷ-14,邓维安采。 模式标本保存在陕西师范大学动物研究所标本室（7♂♂10♀♀）和河池学院动物标本室（3♂♂7♀♀）。     

中国蚱属一新种(直翅目,蚱总科)

报道蚱属Tetrix昆虫1新种,即吉林蚱T.jilinensis sp.nov..新种与巍山蚱T.weishanensis Zheng et Mao,2002和仿蚱T.simulans(B.-Bienko),1929近似,但有以下区别:头顶为一复眼宽1.4倍(♂),1.5倍(♀);头顶前缘弧形或近平直.颜面隆起在侧单眼处不明显凹入.触角节数(♂)14或15节,(♀)15节;触角中段一节长为宽4.9倍.后翅不到达后突末端.后足股节长为宽的(♂)2.8,(♀)2.5倍.模式标本保存在东北师范大学生命科学学院标本中心.     

蚱属（Tetrix）一新种记述及罗城波蚱（Bolivaritettix luochengensis）雄性首次描记（直翅目：蚱总科）

记述采自广西东部地区蚱属(Tetrix Latreille)1新种:象州蚱(Tetrixxiangzhouensis sp.nov.),并首次报道罗城波蚱(Bolivaritettix luochengensis Deng,Zheng et Wei)的雄性个体.新种象州蚱(Tetrix xiangzhouensis sp.nov.)近似于富川蚱(Titri fuchuanensis Zheng,1998),主要区别为:(1)头顶与一眼等宽或略狭于:一眼宽;(2)头顶前缘不突出于复眼之前:(3)触角中段一节长为宽的7-8倍;(4)沟前区侧隆线略向后收缩:(5)后突到达后足胫节的2/3处;(6)前、中足股节卜缘具细毛.     

拟科蚱属的分类研究及一新种记述（直翅目： 短翼蚱科）

拟科蚱属Cotysoides建立于2000年, 该属的主要特征为体小型; 头顶前缘突出于复眼之前; 触角丝状, 着生于复眼前缘下1/3处; 前胸背板背面密具小瘤突; 中隆线波状, 形成一连串小突起; 后突不超过后足股节顶端; 前胸背板侧片外翻, 后角顶平截; 后翅不达后突顶端; 后足跗节第1节长于第3节。本文记述拟科蚱属6种, 包括1新种, 即断隆拟科蚱Cotysoides interruptus sp. nov. 该新种近似于广西拟科蚱Cotysoides guangxiensis Zheng et Jiang, 2000, 主要区别为： 1）头顶为一眼宽的1.5倍; 2）前胸背板侧片前角钝角形; 3）后翅伸达后足股节膝部; 4）中足股节宽狭于前翅宽; 5）雌性下生殖板后缘中央三角形突出。附有分种检索表、 分布及文献引证。新种的模式标本保存于陕西师范大学动物研究所及西南林业大学博物馆。     

中国广东省扁角蚱属一新种(直翅目,蚱总科,扁角蚱科)(英文)

记述扁角蚱属9种,包括采自广东省南岭地区1新种,即黑胫扁角蚱Flatocerus nigritibialis sp.nov.,附有分种检索表,新种的模式标本保存于陕西师范大学动物研究所。黑胫扁角蚱,新种Flatocerus nigritibialis sp.nov.(图1~3)新种近似于武夷山扁角蚱Flatocerus wuyishanensis Zheng,1991,主要区别为:1)头顶宽为1眼宽的1.25倍;2)前胸背板后突到达后足股节顶端;3)雌性下生殖板后缘中央钝角形突出;4)后足股节下侧外面黑色;5)后足胫节黑色。新种也近似于赤水扁角蚱Flatocerus chichuiensis Zhenget Shi,2006,主要区别为:1)沟前区缺侧隆线;2)后翅到达后足股节顶端;3)雌性下生殖板后缘中央钝角形突出。正模♀,副模1♀,广东省乳源(南岭国家森林公园),海拔800m,2010-08-24,白义采。词源:新种种名以拉丁词nigr黑及tibia胫节为名。     

蚱属（Tetrix）一新种记述及罗城波蚱（Bolivaritettix luochengensis)雄性首次描记（直翅目：蚱总科) （英文）

记述采自广西东部地区蚱属(Tetrix Latreille) 1新种：象州蚱(Tetrix xiangzhouensis sp. nov.),并首次报道罗城波蚱（Bolivaritettix luochengensis Deng, Zheng et Wei）的雄性个体。新种象州蚱(Tetrix xiangzhouensis sp. nov.)近似于富川蚱（Tetri fuchuanensis Zheng,1998）, 主要区别为: (1) 头顶与一眼等宽或略狭于一眼宽;(2) 头顶前缘不突出于复眼之前;(3) 触角中段一节长为宽的7–8倍;(4) 沟前区侧隆线略向后收缩;(5)后突到达后足胫节的2/3处;（6）前、中足股节下缘具细毛。     

中国浙江尖顶蚱属一新种记述(直翅目,蚱总科,蚱科)

记述采自浙江临安地区尖顶蚱属Teredorus 1 新种,黑翅尖顶蚱Teredorus nigropennis sp.nov..模式标本保存在陕西师范大学动物所标本室(3♀♀).黑翅尖顶蚱,新种Teredorus nigropennis sp.nov.(图1～3)本种与巴山尖顶蚱Teredorus bashanensis Zheng,1993相似,主要区别:侧面观,背板上缘肩前略波状,肩后平直;前胸背板后突到达后足胫节中部,前胸背板总长为超出后足股节顶端部分长的4.7倍;前翅长为宽的3.0倍;后翅到达后突的顶端;中足股节的宽度狭于前翅能见部分的宽度.正模♀,浙江临安(清凉峰),海拔950 m,2012-06-20,陆春文采.副模2♀♀,同正模.     

广西蚱科一新种记述(直翅目:蚱总科)

记述采自广西北海地区蚱科蚱属Tetrix昆虫1新种,即北海蚱Tetrix beihaiensis sp.nov.。该新种近似于宜州蚱Tetrix yizhouensis Zhenget Deng,主要区别为:(1)侧面观背板上缘在前段呈弧形,后段平;(2)沟前区侧隆线平行;(3)肩部之间具一对短纵隆线;(4)前胸背板后突略超过后足股节顶端;(5)后足股节下侧外面非黑色。模式标本保存在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.