中国叶刺瘿螨亚科四新种记述

记述叶刺瘿螨亚科4新种:野葛藤裂柄瘿螨 Dichopelmus puerariae,sp.nov.,猪肚勒上三脊瘿螨 Calepitrimerus jasmini,sp.nov.,环江顶冠瘿螨 Tegolophus huanjiangensis,sp.nov.,类芦新四瘿螨 Neotetra neyraudiae,sp.nov..模式标本保存在广西大学农学院.     

瘤瘿螨属四新种记述（蜱螨亚纲：瘿螨科）

记述瘿螨亚科Eriophyinae瘤瘿螨属4新种：柳州瘤瘿螨Aceria liuzhouensis sp．nov．，采自柳州的木芙蓉；狗肝菜瘤瘿螨Aceria dicliptera sp．nov．，采自武鸣县的狗肝菜；上思瘤瘿螨Aceria shangsiensis sp．nov．和破布叶瘤瘿螨Aceria microcis sp．nov．，分别采自防城市的降真香和破布叶。     

中国瘿螨科二新种记述

记述瘿螨科Eriophyidae2新种：叶同学瘿螨亚科Phyllocoptinae小丽瘿螨族Acaricalini的橄榄裂柄瘿螨Dichopelmus canarii Kuang,Xu et Zeng,sp.nov,伪足瘿螨亚科Nothopodinae伪足瘿螨族Nothopodini的博白合位瘿螨Cosella bobainensis Kuang,sp.nov。     

中国叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

记述叶刺瘿螨亚科4新种：粗毛榕上三脊瘿螨Calepitrimerus fici Wei,sp．nov．,大叶紫珠上瘿螨Epitrimerus callicarpae Wei et Li,sp．nov．,木姜子五脊瘿螨Pentamerus litseae Wei et Chen,sp．nov．和三又苦顶背瘿螨Tegonotus evodiae Wei,sp．nov．。模式标本保存在广西大学农学院。     

中国瘿螨科二新种记述(蜱螨亚纲)

记述瘿螨科Eriophyidae 2新种 :叶刺瘿螨亚科Phyllocoptinae小丽瘿螨族Acaricalini的橄榄裂柄瘿螨DichopelmuscanariiKuang ,XuetZeng ,sp .nov .;伪足瘿螨亚科Nothopodinae伪足瘿螨族Nothopodini的博白合位瘿螨CosellabobainensisKuang ,sp .nov .。     

广西十万大山瘿螨一新属五新种(蜱螨亚纲,瘿螨科)

新属为拟叶剌瘿螨属Paraphyllocoptes gen.nov.,模式种为十万山拟叶刺瘿螨Paraphyllocoptes shiwanshanensis sp.nov..5个新种是十万山拟叶剌瘿螨Paraphyllocoptes shiwanshanensis sp.nov.,假蒌上瘿螨Epitrimerus piper sp.nov.,润楠叶剌瘿螨Phyllocoptes machilus sp.nov.,广西斜背瘤瘿螨Vasates guangxiensis sp.nov.和棋子豆分位瘿螨Disella cylindrokeluphae sp.nov..     

中国瘿螨科五新种记述(蜱螨亚纲:瘿螨总科)

5新种是丁香顶冠瘿螨Tegolophus syringae sp.nov.,寄主为丁香;黍顶冠瘿螨Tegolophus panici sp.nov.,寄主为黍;胡枝子顶冠瘿螨Tegolophus lessedezae sp.nov.,寄主为胡枝子;毛竹畸瘿螨Abacarus phyllostachyis sp.nov.,寄主为毛竹;渝畸瘿螨Abacarus yunensis sp.nov.,寄主为竹。     

中国南方叶刺瘿螨亚科3新种记述（蜱螨亚纲，瘿螨总科）

本文记述了叶刺瘿螨亚科Phyllocoptinae3新种：菝葜离子瘿螨Leipothrix smilaxsp．nov．,白饭树顶冠瘿螨Tegolophus virosae sp．nov．,鸡爪簕顶冠瘿螨Tegolophus randiae sp．nov．。本文所用量度单位均为微米（μm）。模式标本保存在广西大学农学院。     

中国羽爪瘿螨亚科四新种记述(蜱螨亚纲,羽爪瘿螨科)

记述羽爪瘿螨亚科Diptilomiopinae 4新种：树参羽爪瘿螨Diptilomiopus dendropanacis sp.nov.,长毛柃羽爪瘿螨Diptilomiopus euryae sp.nov.,华南桦双羽爪瘿螨Diptacus betulae sp.nov.和大明山双羽爪瘿螨Diptacus damingshanensis sp.nov.。     

叶刺瘿螨亚科三新种记述(蜱螨亚纲:瘿螨科)

记述了瘿螨科3新种,芒萁丽瘿螨Calacarus dicranopteris sp.nov.,黄肉楠上三脊瘿螨Calepitrimerus actinodaphnis sp.nov.和蒲葵上三脊瘿螨Calepitrimerus livistonae sp.nov.。均采自广西南宁市。     

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.