新疆赖草属的新分类群

发表了禾本科赖草属的二个新种及一个新亚种:高株赖草Leymus altus D.F.Cui, sp.nov.,阿尔金山赖草L.arjinshanicus D.F.Cui, sp.nov.,大药窄颖赖草L.angustus subsp.macroantherus D.F.Cui, subsp.nov.。     

新疆披碱草属的新分类群

本文发表了禾本科披碱草属的四个新种及四个新变种:大丛披碱草Elymus magnicaespes D.F.Cui,sp.nov.;新疆披碱草E.sinkiangensis D.F.Cui,sp.nov.;喀什披碱草E.kaschgaricus D.F.Cui,sp.nov.;阿尔泰披碱草E.altaicus D.F.Cui,sp.nov.;短芒光穗披碱草E.glaberrimus (Keng et S.L.Chen)S.L.Chen var.breviaristus S.L.Chen ex D.F.Cui,var.nov.;林缘狭颖披碱草E.mutabilis (Drob.)Tzvel.var.nemoralis S.L.Chen ex D.F.Cui,var.nov.;多花大穗披碱草E.abolinii (Drob.)Tzvel.var.pluriflorus D.F.Cui,vat.nov.;光穗曲芒披碱草E.tschimganicus (Drob.)Tzvel.var.glabrispiculus D.F.Cui,var.nov.     

新疆泽泻属一新种

本文发表了新疆泽泻属一新种,即小泽泻Alisma nanum D.F.Cui,sp.nov。     

ORDOVICIAN NAUTILOID FAUNA FROM LUNSHAN, JURONG, JIANGSU

The fossil nautiloids described in this paper were collected in 1984 and 1985 from Lunshan, Jurong in Jiangsu; there the Ordovician strata are well developed and may be divided in descending order into seven formations as follows:Upper Ordovician: Wufeng Formation Tangtou FormationMiddle Ordovician Pagoda Formation Lower OrdovicianKuniutan FormationDawan FormationHunghuayuan FormationLunshan FormationThese nautiloids comprise 36 species belonging to 13 genera (including one new genus and 11 new species), namely,Middle OrdovicianPagoda FormationSinoceras chinense (Foord), Michelinoceras changjiangense Chen, densn (Y), M. paraelongatum Chang.Lower OrdovicianKuniutan FormationRhynchorthoceras jurongense sp. nov., R. lunshanense sp. nov., Dideroceras wahlenbergi (Foord), D. holmi Flower, Michlinoceras irregulare sp. nov., Kotoceras gaoluncunense sp. nov.Dawan Formation.Cochlioceras yantzeense Chang, Chisiloceras ichangense Wang, C. yaoshanense Qi, C. changyangense (Chang), Protocycloceras deprati Reed, P. hupehcnse (Shimizu and Obata), P. sichuanense Wang, P. remotum Lai, P. gangshanense sp. nov., P. siphosedimentum Pan, P. chaoi sp. nov., P.shishantouense sp. nov., P. gaojiabianense sp. nov., Changyangoceras gaojiabianense sp. nov., Gangshanoceras jurongense gen. et sp. nov., G. densum gen. et sp. nov., Michelinoceras cf. dayongense Lai, Troedssonella lunshanensis sp. nov., Mesosendoceras leei (Y), Vaginoceras peiyangense malukonense Chen, Dideroceras mui (Chang), D. gaoluncunense sp. nov.     

毛蚊科九新种记述：双翅目：长角亚目

本文记述了双翅目毛蚊科3属9新种,其中棘毛蚊属3种:长喙棘毛蚊 Ditophus macrosiphonius sp.nov.,吉林棘毛蚊 D.jilinensis sp.nov.和膜棘毛蚊 D.membranaceus sp.nov.;叉毛蚊属2种:异角叉毛蚊 Penthetria aberrans sp.nov.和甘肃叉毛蚊 P.gansuensis sp.nov.;襀毛蚊属4种:裂襀毛蚁 Plecia dilacerabilis sp.nov.,峨眉襀毛蚊 P.emeiensis sp.nov.,钳襀毛蚊 P.forcipiformis sp.nov.和长叶襀毛蚊 P.longifolia sp.nov.。所有模式标本均保存在北京农业大学昆虫标本室。     

中国真叶蝇属六新种及中国种类检索表（双翅目：叶蝇科）

记述中国真叶蝇属6新种:短须真叶蝇P.brevipalpis sp.nov.,瘤突真叶蝇P.gangliiformisa sp.nov.,李氏真叶蝇P.lii sp.nov.,长毛真叶蝇P.longisetae sp.nov.,黑腹真叶蝇P.melanogastera sp.nov.和黑缘真叶蝇P.nigrimarginata sp.nov.,编制了本属中国种类的检索表.     

齿爪盲蝽属新种及中国新纪录(半翅目:盲蝽科)

记述了齿爪盲蝽属9新种及中国1新纪录种,新种为窄顶齿爪盲蝽Deraeocoris angustiverticalis sp.nov.,斑腿齿爪盲蝽D.annulifemoralis sp.nov。,弓盾齿爪盲蝽D.conspicuus sp.nov.,铜黄齿爪盲蝽D.cupreus sp.nov,黄头齿爪盲蝽D.flaviceps sp.nov,海岛齿爪盲蝽D.insularis sp.nov,雅齿爪 盲蝽D.majesticus sp.nov.,大眼龄爪盲蝽D.oculatus sp.nov.和王氏齿爪盲蝽D.wangi sp.nov,中国新纪录种为东方齿爪盲蝽D.onphoriensis Josifov,1992,模式标本保存在南开大学标本馆,文中量度单位均为mm。     

四川省淡水蟹类的研究（软甲纲：十足目）

本文详细报道了四川省淡水蟹类8个新种及亚种:Potamiscus elaphrius sp. nov., P. rongjingense sp. nov., Trichopotamon yenyuanense sp. nov., Aparapotamon muliense sp. nov., Isolapotamon sheni sp. nov., Sinopotamon weiyuanense sp. nov., S. shensiense wushanense subsp. nov. S. nanum sp. nov.     

中国带织蛾属九新咱和二新记录种

记述了中国带织蛾属Periacma Meyrick9新种,即曲靖带织蛾P.qujingensis sp.nov.,离腹带织蛾P.absaccula sp.nov.,新带织蛾P.novella sp.nov.,齿腹带织蛾P.sacculidens sp.nov.,三齿带织蛾P.tridentata sp.nov.,尖爪带织蛾P.acriuncata sp.nov.,等瓣带织蛾P.equivalvata sp.nov.,尖颚带织蛾P.acutignathe sp.nov.,中华织蛾P.sinica sp.nov.。报道了中国1新记录亚种,越南带织蛾P.iodesma vietnamica Lvovsky,1998和1新记录种伊带织蛾P.isanensis Moriuti,Satio et Lewvanich,1989。提供了新种的雌雄外生殖器特征图。模式标本（除指明外）保存在南开大学生物学系。     

中国皮司霉属分类研究I

报道了采集自我国境内的皮司霉属Pithomyces 8个新种:山葵皮司霉P.arecastri sp.nov.,串珠皮司霉P.cateniformis sp.nov.,椭圆皮司霉P.ellipticus sp.nov.,蠕形皮司霉P.helminthosporioides sp.nov.,长柄皮司霉P.longipes sp.nov.,倒梨形皮司霉P.obpyriformis sp.nov.,络石皮司霉P.trachelospermi sp.nov.,和羊蹄甲皮司霉P.variegatae sp.nov.。2个中国新记录种:油棕生皮司霉P.elaeidicola和垫状皮司霉P.pulvinatus。新种分别进行了详实的拉丁文和中文描述并附图。研究标本(自然标本和干制培养物)保存于山东农业大学植物病理系标本室(HSAUP)。     

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.