世界秋海棠属侧膜组植物新资料

记述了秋海棠属侧膜组11新种,即星果草叶秋海棠(BegoniaasteropyrifoliaY.M.ShuietW.H.Chen)、耳托秋海棠(B.auritistipulaY.M.ShuietW.H.Chen)、桂南秋海棠(B.austroguangxiensisY.M.ShuietW.H.Chen)、水晶秋海棠(B.crystallinaY.M.ShuietW.H.Chen)、须苞秋海棠(B.fimbribracteataY.M.ShuietW.H.Chen)、巨叶秋海棠(B.gigaphyllaY.M.ShuietW.H.Chen)、黄氏秋海棠(B.huangiiY.M.ShuietW.H.Chen)、长柱秋海棠(B.longistylaY.M.ShuietW.H.Chen)、扁果秋海棠(B.platycarpaY.M.ShuietW.H.Chen)、喙果秋海棠(B.rhynchocarpaY.M.ShuietW.H.Chen)、多变秋海棠(B.variifoliaY.M.ShuietW.H.Chen);并报道了3新变种及1新名称,即疏毛越南秋海棠(B.boniiGagnep.var.remotisetulosaY.M.ShuietW.H.Chen)、密毛龙州秋海棠(B.morseiIrmsch.var.myriotrichaY.M.ShuietW.H.Chen)、簇毛伞叶秋海棠(B.umbr-aculifoliaY.WanetB.N.Changvar.flocculosaY.M.ShuietW.H.Chen)及彩纹秋海棠(B.variegataY.M.ShuietW.H.Chen)。     

中国马蓝属(爵床科)新组合和新分类群(英文)

采用广义的马蓝属(Strobilanthes Blume)概念,提出3个新组合:匍匐半插花(S.primulifolia(Nees)Y.F.DengJ.R.I.Wood),直立半插花(S.cumingiana(Forst.)Y.F.DengJ.R.I.Wood)和狭叶马蓝(S.atropurpurea var.stenophylla(C.B.Clarke)Y.F.DengJ.R.I.Wood);描述了8新种:南岭马蓝(Strobilanthes austrosinensis Y.F.DengJ.R.I.Wood)、冯氏马蓝(S.fengiana Y.F.DengJ.R.I.Wood)、陶氏马蓝(S.taoana Y.F.DengJ.R.I.Wood)、启无马蓝(S.wangiana Y.F.DengJ.R.I.Wood)、景东马蓝(S.atroviridis Y.F.DengJ.R.I.Wood)、西畴马蓝(S.rostrata Y.F.DengJ.R.I.Wood)、黄连山马蓝(S.spiciformis Y.F.DengJ.R.I.Wood)和匍匐马蓝(S.procumbens Y.F.DengJ.R.I.Wood)。对南岭马蓝、黄连山马蓝、景东马蓝和匍匐马蓝的花粉形态进行了观察。     

贵州蕨类植物资料

亮鳞肋毛蕨 贵州新记录 Ctenitis subglandulosa (Hance)Ching in Bull.Fan Mem.Inst.Biol.Bot.Ser.8:302.1938;T.Nakaike,New Fl.Jap.(Rev.& Enl.)334.1992;K.Iwatsuki,Ferns & Fern All.Jap.203.t.129.f.1-3.1992;C.F.Zhang & S.Y.Zhang,Fl.Zhejiang,1:287.f.1-297.1993;C.H.Wang in S.H.Wu,Fl.Reip.Pop.Sin.6(1):36.1999.--Alsophila subglandulosa Hance in Ann.Sci.Nat.ser.5,5:253.1866.     

《现代生物医学进展》编辑部及各通联部联系方式

本刊网址： www.biomed.net.cn, www.shengwuyixue.com, www.swcx.periodicals.net.cn E-mail ： biomed_54@ 126.com, liudhui__21 @ 126.com, biomagnetism@ 163.com, liudhui21 @gmail.com     

有关生物工程专书文献分类汇集(续)

生物化学《亲和层析》(Affinity Chromatograph)一本实践入门书。P.D.G.Dean,W.S.Johnson和F.A.Middle主编。1055 IRLPress.《亲和层析》(Affinity Chromatograph)粒酸和蛋白的模板层析.H.Schott.19ss MarcelDekker.《氨基酸和肤》(Amino Aeids and Peptides)J.S.Davies 1985 Chapman and Hall.《多肤激素的生物化学》(Bioehemistry of the polypeptide Hormones)M.Wallis,5.L .Howell和K.W.Taylor,2955 John Wiley.     

The identity of some taxa of Schizophragma （Saxifragaceae）

After examining a large number of type and authoritative specimens of Schizophragma Siebold ＆ Zucc., S. elliptifolium C. F. Wei and S. integrifolium var. glaucescens Rehder were reduced to synonyms of S. hypoglaucum Rehder and S. integrifolium f. cordatum S. Y. Wang was reduced to synonym of S. corylifolium Chun. Schizophragma crassum var. ellipticum J. Anthony was treated as the correct name of S. crassum var. hsitaoanum （Chun） C. F. Wei. The name S. integrifolium var. minus Rehder is reinstated. The taxonomic treatment is supported by leaf epidermal characters.     

《现代生物医学进展》编辑部及各通联部联系方式

本刊网址 ：www.biomed.net.cn, www.shengwuyixue.com, www.swcx.periodicals.net.cn E-mail： biomed_54@126.com, liudhui_21 @126.com, biomagnetism@163.com, liudhui21 @gmail.com     

鹅观草属的几个新组合

本文报道了禾本科鹅观草属的三个种级新组合和四个变种级新组合。即大丛鹅观草Roegneria magnicaespis (D.F.Cui)L.B.Cai;新疆鹅观草Roegneria sinkiangensis(D.F.Cui)L.B.Cai;阿尔泰鹅观草Roegneria altaica(D.F.Cui)L.B.Cai;短芒鹅观草Roegneria glaberrima var.breviarista (D.F.Cui)L.B.Cai;林缘鹅观草Roegneria mutabilis var.nemoralis (D.F.Cui)L.B.Cai;多花鹅观草Roegneria abolinii var.pluriflora (D.F.Cui)L.B.Cai和曲芒鹅观草Roegneria tschimganica var.glabrispicula (D.F.Cui)L.B.Cai。     

《现代生物医学进展》编辑部及各通联部联系方式

<正>本刊网址:www.biomed.net.cn,www.shengwuyixue.com,www.swcx.periodicals.net.cnE-mail:biomed_54@126.com,liudhui_21@126.com,biomagnetism@163.com,liudhui21@gmail.com编辑部地址:哈尔滨市54号信箱(150001)哈尔滨市花园街184号     

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.