中国狼逍遥蛛属1新种2新纪录种记述（蜘蛛目：逍遥蛛科）

记述分布于内蒙古的逍遥蛛科蜘蛛1新种:武川狼逍遥蛛Thannatus wuchuanensis sp.nov和2中国新纪录种:北极狼逍遥蛛Thanatus arctivus Thorell,1872;草原狼逍遥蛛Thanatus stepposus Logunov,1996.     

中国逍遥蛛科化石新属种（蜘蛛目，逍遥蛛科）

记述产自中国辽西的逍遥蛛科化石1新属：白垩逍遥蛛属Cretadromus gen．nov．,1新种：辽宁白垩逍遥蛛Cretadromus liaoningensis sp．nov．：这是逍遥蛛科化石在中国的首次发现,也是逍遥蛛科在晚侏罗世-早白垩世的首次报道。标本采白辽宁省凌源市大王杖子晚侏罗世-早白垩世义县组地层,现存于大连自然博物馆：     

中国逍遥蛛科二新种记述(蛛形纲,蜘蛛目)

记述中国逍遥蛛科二新种:指状逍遥蛛philodromusdigitatus sp.nov.和葫芦长逍遥蛛Tibellus cucurbitus sp.nov..模式标本保存于河北大学博物馆.文中测量单位为:mm.     

中国逍遥蛛属一新种(蜘蛛目:逍遥蛛科)

记述采自云南大理的逍遥蛛属一新种:胡氏逍遥蛛 Philodromus hui sp. nov.。     

香港蜘蛛数新种记述

记述采自我国香港的5种蜘蛛新种:圆颚蛛科Corinnidae的香港纯蛛Cas-tianeira hongkong sp.nov.,逍遥蛛科Philodromidae的香港狼逍遥蛛Thanatus hongkong sp.nov.,蟹蛛科Thomisidae的香港微蟹蛛Lysiteles hongkong sp.nov.,香港花蛛Misumenopshongkong sp.nov.和新界花蛛Misumenops xinjie sp.nov.。     

草皮逍遥蛛等天敌对吐伦球坚蚧捕食作用的初步研究

采用HollingⅡ型和Ⅲ型模拟测定了草皮逍遥蛛等3种天敌对吐伦球坚蚧初龄若虫的捕食功能。结果表明：草皮逍遥蛛具有相当的食蚧能力,食量仅稍低于多异瓢虫,但远低于以食蚧为主的孪斑唇瓢虫。     

陕西农区蟹蛛科及逍遥蛛科蜘蛛初步调查

作者根据近年来采集的标本,对分布于陕西省的蟹蛛科Thomisidae和逍遥蛛科Philodr-midae蜘蛛进行了系统研究,鉴定出33种,加上前人报道,本文共记述41种,其中包括6个陕西省新记录种及7个待定种。1陕西省蟹蛛科及逍遥蛛科蜘蛛名录(带“。”号者为陕西省新纪录,种名后为分布地)1、黑革蟹蛛Coriarachne melancholica绥德、西安、潼关港口、华县2、三突树蟹蛛Diaea tr-icuspidatus全省°3、多毛毛蟹蛛Heriaeus hirtus商南4、梅氏毛蟹蛛H.mellottei大荔官池、华阴、翠华山、南五台、火地塘、旬阳坝5、Lysteles sp.留坝6、Lysiteles sp.蒲城、户…     

《中国动物志》蜘蛛目蟹蛛科和球蛛科两卷评介

《中国动物志·蛛形纲·蜘蛛目》的蟹蛛科、逍遥蛛科(宋大祥、朱明生编著)和球蛛科(朱明生编著)系国家自然科学基金“八五”重大项目,已于1997、1998年先后由科学出版社出版。这2本志是迄今为止我国对这3个科最新研究成果的总结。前一卷记述蟹蛛科29属115种,逍遥蛛科3属30种,共计32属145种。后一卷记述球蛛科223种,包括87新种及多个我国新纪录属。这3个类群中的许多种类均系农、林中常见的种类,它们在维持农林生态系统平衡和消灭害虫方面发挥着重要的作用。但以前由于缺少有关参考资料,     

河北省和山东省棉蚜天敌蜘蛛名录

经15年来的调查,已明确河北省和山东省的棉蚜天敌蜘蛛种类,计11科、59种,即:(1)隐石蛛科1种,(2)卷叶蛛科2种,(3)园蛛科5种,(4)肖蛸科6种,(5)球腹蛛科5种,(6)皿蛛科7种.(7)狼蛛科7种,(8)管巢蛛科8种,(9)蟹蛛科13种,(10)逍遥蛛科2种,(11)跳蛛科3种。同时明确其天敌河北省为11科、51种,山东省为11科、50种。     

草皮逍遥蛛对苹果黄蚜捕食作用的研究

在实验室条件下,研究了草皮逍遥蛛 Philodromus cespitum 对苹果黄蚜 Aphis pomi 的捕食功能,分析了在不同猎物密度、捕食者自身密度、猎物密度及自身密度的联合反应、相互干扰以及不同温度条件对捕食功能的影响;用Holling、Hassell方程模拟后的理论值与观察值比较接近,经卡方测验后,误差不显著(相似文献   

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.