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1.
广西蚱科四新种记述(直翅目:蚱总科)   总被引:6,自引:1,他引:5  
本文记述采自广西状族自治区大青山及大瑶山地区蚱科昆虫4新种,即龙州蚱Tetrixlongzhouensis sp.nov.、广西拟台蚱Formosatettixoides guangxiensis sp.nov.、黑胫真长背蚱Euparatettix nigritibis sp.nov.及长翅拟真长背蚱Euparatettixoides longipennis sp.nov.。  相似文献   

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广西食植瓢虫属五新种:鞘翅目:瓢虫科   总被引:2,自引:0,他引:2  
本文记述采自广西的食植瓢虫属Epilachna5新种,即花端食植瓢虫Epilachna anthodea,sp.nov。,短叶食植瓢虫E.brachylodb,sp.nov。浪平食植瓢虫E.langpingensis,sp.nov.,靴管食植瓢虫E.ocreata,sp.nov.和管刺食植瓢虫E;siponechinulata,sp.nov.。  相似文献   

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本文记述广叶螨属2新种,武夷广叶螨Eurytetranychus wuyishanenisis sp.nov.和青刚广叶满E.cyclbalanopsissp.nov.。  相似文献   

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中国蚱科三新种记述:直翅目:蚱总科   总被引:5,自引:1,他引:4  
本文记述采自广西蚱科昆虫3新种,即花坪台蚱Formosatettixhuapingensissp.nov.、黑背直长背蚱Euparatettixmelanotussp.nov.及广西版纳蚱Bannatettixguangxiensissp.nov。  相似文献   

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中国化香属一新种   总被引:1,自引:0,他引:1  
梁盛业  梁桂娟   《广西植物》1999,19(2):119-120
龙州化香新种图1PlatycaryalongzhouensisS.Y.LiangetG.J.Liang,sp.nov.fig.1.SpeciesafinisPlongipediWu,seddifertfolisomneternatis,lamini...  相似文献   

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我国蚱科一新属二新种记述(直翅目:蚱总科)   总被引:1,自引:0,他引:1  
本文记述采自广西和吉林省蚱科一新属二新种,即拟真长背蚱属Euparatet-tixofdesgen.nov.,广西拟真长背蚱Euparatettixoidesguangxiensissp.nov.及粗瓣蚱Tetrixgrossovalvussp.nov.。  相似文献   

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本文报道福建沿海类4新种,既六辐拟线水母Nemopsis hexacanalis sp.nov.,福建无垂水母Orthopyxis fujianensis sp nov.、短柄和平水母Eirene brevistylus.nov.、乳突多管水母Aequorea papillata sp.mov.。  相似文献   

8.
文内新属为帽瘿螨属Mitratus Kuang,gen.nov.,新种是构帽瘿螨M.broussonetiae Kuang,sp.nov.,张掖瘿螨Eriophyes zhangyeensis Kuang et Luo,sp.nov.,柳刺瘿螨Aculus salicis Kuang et Luo,sp.nov.,拟醋栗花刺瘿螨Anthocoptes pararibis Kuang,sp.nov.  相似文献   

9.
本文描述了寄生在四川家养林麝肠道内的艾美属原虫二新种:麝艾美虫,新种(Eimeriamoschussp.nov.)和金风山艾美虫,新种(E.jinfengshanenisissp.nov.)。  相似文献   

10.
1澜沧苔草新种图1:1~4CarexlancangensisS.Y.Liang,sp.nov.Fig.1:1~4Speciesplantamultoaltiore,spiculislongioribusad17cmlongisaspeciebusre...  相似文献   

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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.  相似文献   

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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.  相似文献   

18.
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.  相似文献   

19.
肝癌中HBV和HCV基因和抗原的分布及意义   总被引:1,自引:0,他引:1  
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  相似文献   

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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.  相似文献   

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