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1.
李强  杨莲芳 《昆虫学报》2002,45(Z1):107-109
 蒙古缨角泥蜂Crossocerus (Crossocerus) neimongolensis sp. Nov.和无齿缨角泥蜂 C. (C.) exdentatus sp. Nov.。模式标本分别保存在中国科学院动物研究所昆虫标本 馆和中国农业大学昆虫标本室。  相似文献   

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李强  杨莲芳 《昆虫学报》2002,45(2):107-109
蒙古缨角泥蜂Crossocerus (Crossocerus) neimongolensis sp. Nov.和无齿缨角泥蜂 C. (C.) exdentatus sp. Nov.。模式标本分别保存在中国科学院动物研究所昆虫标本馆和中国农业大学昆虫标本室。  相似文献   

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记述中国浙江方头泥蜂科Crabronidae转长泥蜂属Tracheliodes 1新种:瘤唇转长泥蜂Tracheliodes labitubercutus,sp.nov.,编制了该属中国已知种类检索表.模式标本保存于浙江大学寄生蜂标本室.  相似文献   

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李强  何俊华 《昆虫学报》2000,43(2):198-200
颚方头泥蜂属(Entomognathus Dahlbom, 1844) 世界已知4 个亚属共44种,其中我国已知2亚属3种。长脉泥蜂亚属(Koxinga Pate, 1944)的种类为一类稀有的中小型独居捕猎蜂,目前世界仅知2种,其中1 种分布于印度,另一种分布于东南亚地区。本文记述了采自我国云南省的长脉泥蜂亚属1新种。  相似文献   

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记述中国广西方头泥蜂科Crabronidae切方头泥蜂属Ectemnius 1新种:漫黄切方头泥蜂Ectemnius anomalifulvus, sp. nov..模式标本保存于云南农业大学昆虫标本室.  相似文献   

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记述方头泥蜂科Crabronidae中国1新记录属:阳完眼泥蜂属Solierella Spinola,1851,并记述了1新种:金足阳完眼泥蜂Solierella cerinusipedalis,sp.nov.。模式标本保存在云南农业大学昆虫标本室。  相似文献   

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记述采自中国海南省的方头泥蜂科Crabronniae、大头泥蜂亚科Philanthinae、节腹泥蜂属Cerceris 1新种:褐节腹泥蜂Cerceris rubigina,sp.nov..模式标本保存在云南农业大学昆虫标本室.  相似文献   

8.
记述采自我国西藏自治区的方头泥蜂科方头泥蜂亚科刺胸泥蜂属1新种:黑鳞刺胸泥蜂Oxybelus nigrilamellatus,sp.nov.。模式标本保存在云南农业大学昆虫标本室。  相似文献   

9.
《环境昆虫学报》2014,(5):820-825
本文对节腹泥蜂族的分类研究现状进行了总结。该族目前世界已知2属911种。文中对该族的分类研究简史和生物学特性作了简要概述,并对种类的地理分布作了统计分析。  相似文献   

10.
本文作者对中国壁泥蜂族种类作了研究,同时描述该属1新种──杨氏蓝泥蜂Chalybionyangi,sp.nov.。模式标本保存在北京农业大学昆虫标本馆。  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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