带叶蝉属中国种类记要(同翅目:叶蝉科:殃叶蝉亚科)

记载中国带叶蝉属Scaphoideus Uhler37种,其中有9新种,即中横带叶蝉S.midvittatus sp.nov,齿茎带叶蝉S.dentaedeagus sp.nov。贵州带叶蝉S.guizhouensis sp.nov。齿突带叶蝉S.dentatestyleus sp.nov。宽板带叶蝉S.widesternanus sp.nov。细板带叶蝉S.graciliplateus sp.nov,刺板带叶蝉S.spiniplateus sp.nov,双斑带叶蝉S.bimaculatus sp nov和刘氏带中叶蝉S.liui sp.nov。新种模式标本保存在贵州大学昆虫研究所。     

窄头叶蝉属中国种类记要(同翅目,叶蝉科,叶蝉亚科)

共记述了中国窄头叶蝉属Batracomorphus Lewis20种。其中包括7新种：古丈窄斗叶蝉B.guzhangensis sp.nov．、齿突窄头叶蝉B.dentestyleus sp．nov.、叉突窄头叶蝉B.furcatus sp.nov.、细突窄头叶蝉B.gracilis sp.nov．、阔突窄头叶蝉B.lateprocessus sp．nov．、片马窄头叶蝉B.pianmaensis sp.nov．和斑翅窄头叶蝉B.puncta-tus sp．nov．;9个新组合。新种模式标本保存在贵州大学昆虫研究所。     

隐脉叶蝉族一新属新种(同翅目:叶蝉科:隐脉叶蝉亚科)

本文记述隐脉叶蝉族１新属,凹片叶蝉属Ｃｏｎｃａｖｅｐｌａｎａ ｇｅｎ．ｎｏｖ．,１新种,端刺凹片叶蝉Ｃ．ｓｐｉｎａｔａ ｓｐ．ｎｏｖ．,２新组合,红线凹片叶蝉Ｃ．ｒｕｆｏｌｉｎｅａｔａ（Ｋｕｏｈ）,ｃｏｍｂ．ｎｏｖ．和三带凹片叶蝉Ｃ．ｔｒｉｆａｓｃｉａｔａ（Ｈｕａｎｇ）,ｃｏｍｂ．ｎｏｖ．,模式标本保存于贵州农学院。     

点翅叶蝉属一新种(同翅目：叶蝉总科，耳叶蝉科)

点翅叶蝉属 Confucius Distant,1907隶属于同翅目Homoptera、叶蝉总科 Cicadelloidea、耳叶蝉科Ledridae、耳叶蝉亚科 Ledrinae、片头叶蝉族 Petalocephalini。据记载本属目前有7种及1亚种。作者在鉴定中山大学收藏的标本中,发现一新种,现记述如下。 新种模式标本保存于中山大学昆虫标本室。     

中国阔颈叶蝉属分类研究（同翅目：叶蝉科：缘脊叶蝉亚科）

阔颈叶蝉属现全世界已知2种,中国均有分布。本文记述1新种,新种模式标本保存在西北农林科技大学昆虫博物馆。     

尼泊尔小头叶蝉属一新种记述（同翅目：叶蝉科：秀头叶蝉亚科）

本文记述了采自尼泊尔的叶蝉科秀头叶蝉亚科小头叶蝉属1新种：凹瓣小头叶蝉Placidus incurvatus,sp.nov,并确认小头叶蝉属应隶属于秀头叶蝉亚科。新种模式标本保藏于英国自然历史博物馆(BMNH)。该新种额唇基具1近似漏斗形的纵长黄色区域,阳基侧突外基突端部向外侧弯折翘起,生殖瓣端部凹入,明显有别于同属其它种类。     

片角叶蝉一新属一新种（同翅目：叶蝉科）

记述片角叶蝉亚科Ｉｄｉｏｃｅｒｉｎａｅ片角叶蝉族Ｉｄｉｏｃｅｒｉｎｉ１新属：长尾叶蝉属Ｌｏｎｇｉｃａｕｄａ,ｇｅｎ．ｎ．及其１新种：三带长尾叶蝉Ｌｏｎｇｉｃａｕｄａ ｔｒｉｌｉｎｅａｔａ,ｓｐ．ｎ．。模式标本保存于西北农林科技大学昆虫博物馆。     

云南横脊叶蝉亚科三新种记述(同翅目:叶蝉科)

记述了采自云南的横脊叶蝉亚科Evacanthinae,斜脊叶蝉属Bundera Distant 2新种,即红条斜脊叶蝉B.rufistriana sp.nov.和透斑斜脊叶蝉B.pellucida sp.nov。以及角突叶蝉属Taperus Li et Wang 1新种,即兰坪角突叶蝉T.lanpingensis sp.nov.模式标本保存在贵州大学昆虫研究所。     

中国类带叶蝉属一新种记述(半翅目:叶蝉科:殃叶蝉亚科)

记述类带叶蝉属Scaphoidella Vilbaste 1新种,即横纹类带叶蝉S. Transversa, sp. Nov..新种模式标本保存在贵州大学昆虫研究所.     

中国沟顶叶蝉亚科四新种(同翅目:叶蝉科)

记述我国叶蝉科沟顶叶蝉亚科4新种：对突卡沟叶蝉Carvaka bigeminata sp.nov;双齿管茎叶蝉Fistulatus bidentatus spnov;黄脉管茎叶蝉Fistulatus luteolus sp.nov。和波缘阔颈叶蝉Drabescoides undomarginata sp.nov。新种模式标本保存在安徽农业大学昆虫标本室。     

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.