毛绥螨属新种记述和已知种再描述与更正(蜱螨亚纲:革螨股:裂胸螨科)

记述毛绥螨属2新种:小板毛绥螨Lasioseius plateculus sp.nov.和黄河毛绥螨Lasioseius huangheensis sp.nov..同时对王氏毛绥螨Lasioseius wangi Ma,1988进行再描述,并对廖氏毛绥螨 Lasioseius liaohaorongae Ma,1996进行更正.     

毛绥螨属一新种(蜱螨亚纲：裂胸螨科)

报道列胞螨科Aceosejidae Baker et Wharton,1952毛绥螨属Lasioseius Berlese,1916一新种,即青海毛缓螨Lasioseius qinghaiensis sp.von.。     

毛绥螨属3新种记述（蜱螨亚纲：中气门目：裂胸螨科）

记述毛绥螨属3新种：矩殖毛绥螨Lasioseius orthocegenitalis sp. nov.,林氏毛绥螨Lasioseius linjianzheni sp. nov.和张氏毛绥螨Lasioseius zhangyanxuanae sp. nov.。     

毛绥螨属1新种和囊螨属1新种（蜱螨亚纲：裂胸螨科,胭螨科）

描述廖氏毛绥螨,新种Lasioseius jilinsimilis sp.nov.和植囊螨,新种Ascaplantaria sp.nov.     

全雪螨属1新种和匙毛绥螨雄螨新发现(蜱螨亚纲:中气门目:裂胸螨科)

本文记述全雪螨属1新种:菱形全雪螨Panteniphis rhombus sp.nov.,并描述匙毛绥螨Lasioseius spatulus Gu et Wang,1990雄螨。     

裂胸螨科4新种和中国2新纪录属：蜱螨亚纲：革螨股

记述裂胸螨科4新种:陈氏毛绥螨Lasioseius chenpengi sp.nov.,杵状肛厉螨Proctolaelaps pis-tilli sp.nov.,疏毛北绥螨Arctoseius oligotrichus sp.nov.和巨肛伊(虫穴)螨中Iphidozercon magnanalis sp.nov.。其中北绥螨属Arctoseius Thor,1930和伊(虫穴)螨属Iphidozercon Berlese,1903为中国首次纪录。     

多毛毛绥螨重新命名和2已知种雄性及后若虫形态描述（蜱螨亚纲，中气门亚目）

多毛毛绥螨Lasioseius multisetus Ma et Bai,2006为无效的异物同名,本文重新命名为宁夏毛绥螨Lasioseius ningxiaensis Bai．Ma＆Yan（裂胸螨科）。首次记述长茎浩伦螨Holaspulus tenuipes Berlese,1904（派盾螨科）第二若虫和李氏广厉螨Cosmolaelaps liaeBai et Gu,1993（厉螨科）雄性。     

毛绥螨属六新种(蜱螨亚纲:裂胸螨科)

毛绥螨属Lasioseius Berlese隶属于裂胸螨科Aceosejidae,国内仅有过混毛绥螨L. confusus,Evans的纪录。本文绘图描述了采自贵州和陕西省啮齿类体上的毛绥螨属6新种:匙毛绥螨L. spatula sp. nov. 贫板毛绥螨L. paucispathus sp. nov.、裂毛绥螨L. schizopilus sp. nov.、黔毛绥螨L. qianensis sp. nov.、点毛绥螨L. punctatus sp. nov. 及多板毛绥螨L. multispathus sp. nov.。文中列举各新种的宿主与采集纪录及与相近种类的鉴别。     

乳突寄螨雌螨描述(蜱螨亚纲: 革螨股: 寄螨科)

乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 ,在所查到的文献中 ,仅记载有生殖区、头盖和螯钳的形状 [1 ,2 ] ,无其它描述。国内根据丹东标本曾描述该螨雄螨和后若螨 [3] 。本文根据朝鲜标本详细描述其雌螨。文中测量单位为 μm,括号内为测量均值。图 1- 7　乳突寄螨 Parasitus mammillatus (Berlese)1.背面 ;2 .腹面 ;3.头盖 ;4 .螯钳 ;5 .颚角 ;6 .须肢 ;7.跗节 乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 (图 1 - 7)体黄色 ,卵圆形 ,长 71 2 - 793( 758) ,宽 4 0 2 - 483( 4 50 )。背板覆盖整个背面 ,前背…     

钝绥螨属2新种和东方盲走螨雄螨及若螨描述(蜱螨亚纲:革螨股:植绥螨科)

记述钝绥螨属 2新种 :拟大钝绥螨 Amblyseius submagnus sp.nov.和似巨钝绥螨 Amblyseiusgrandisimilissp.nov.,同时描述东方盲走螨 Typhlodromusorientalis Wu,1 981雄螨和若螨。模式标本存于全国鼠疫布氏菌病防治基地 ,吉林省白城市。     

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.