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1.
凤盲蝽属一新种(半翅目:盲蝽科)   总被引:3,自引:0,他引:3  
本文记述采自甘肃祁连山北麓的半翅目盲蝽科叶盲蝽亚科凤盲蝽属昆虫1新种--祁连凤盲蝽。新种的模式标本保存在南开大学生物系。  相似文献   

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我国小网蝽属昆虫的研究(半翅目:异翅亚目:网蝽科)   总被引:1,自引:0,他引:1  
本文记述了我国内蒙古地区网蝽科小网蝽属一新种,即内蒙小网蝽。新种的模式标本保存在内蒙师范大学生物系昆虫标本室。  相似文献   

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中国真蝽属二新种(半翅目,蝽科)   总被引:1,自引:0,他引:1  
记述了蝽科真蝽属2新种:苍山真蝽Pentatoma cangshanensis sp.nov.和绿角真蝽Pentatoma viridicornuta sp.nov.,新种分别与近似种做了比较,并附鉴别特种图.模式标本保存于陕西师范大学动物研究所昆虫标本室.  相似文献   

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作者在研究内蒙古长蝽科标本时,发现长蝽科2个新种:阿拉善叶缘长蝽Emblethis alashanensissp.nov.,巴氏直缘长蝽Ortholomus batui sp.nov.,1个中国新记录属:弯齿长蝽属Raglius Stal,1872,3个中国新记录种:弯齿长蝽Raglius aboacuminatus(Goeze),蒙毛角长蝽Hyalocoris mongolicus Kerzhner,东方林长蝽Drymus orientalis Kerzhner。模式标本保存于内蒙古师范大学昆虫研究所标本馆。  相似文献   

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记述了采于我国南方地区的异蝽科昆虫2新种,分属于2属,即壮异蝽属Urochela Dallas的白点壮异蝽Urochela albosignata sp.nov,和盲异蝽属Urolabida Westwood的五峰盲异蝽Urolabida wufengana sp.nov。量度单位mm。模式标本存南开大学生命科学学院生物系。  相似文献   

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记述了盲蝽科盲蝽亚科异草盲蝽属Heterolygus Zheng et Yu 1新种,郑氏异草盲蝽Heterolygus zhengi sp.nov.,模式标本采于我国四川省炉霍。发现了盲蝽科合垫盲蝽亚科昧盲蝽属Mecomma Fieber陕西昧盲蝽Mecomma shaanxiensis Liuet Yamamoto的短翅型雌性,并进行了描述。标本均保存于内蒙古师范大学生命科学与技术学院昆虫标本馆。  相似文献   

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记述花蝽科Anthocoridae2新种:阿拉善肩花蝽Tetraphleps alashanensis sp.nov.,五斑肩花蝽Tetraphleps maculatus sp.nov.,小花蝽属Orius Wolff中国2新纪录种:细鞭小花蝽Orius laticollis laticollis(Reuter),西伯利亚小花蝽Oriussibiricus Wagner。模式标本保存于内蒙古师范大学昆虫研究所标本馆。  相似文献   

8.
记述盲蝽科盲蝽亚科植盲蝽属Phytocoris Fallén,1814 1新种,九寨植盲蝽Phytocoris jiuzhaiensis sp.nov.,模式标本采自四川省九寨沟自然保护区.标本存放于内蒙古师范大学生命科学与技术学院昆虫研究所标本室.  相似文献   

9.
真蝽属一新种(半翅目:蝽科)   总被引:1,自引:1,他引:0  
本文记述蝽科真蝽属一新种:拟太白真蝽Pentatoma parataibaiensis sp.nov.,新种与太白真蝽Pentatoma taibaiensis Zheng et Ling相似。模式标本存于南开大学生物系。  相似文献   

10.
盲蝽科一新属及二新种记述(半翅目:盲蝽科)   总被引:1,自引:0,他引:1  
盲蝽科一新属及二新种记述(半翅目:盲蝽科)齐宝瑛,能乃扎布(内蒙古师范大学生物系呼和浩特010022)在鉴定由阿拉善盟森防站提供的一批采自贺兰山西坡以及作者几年来采集的盲峙科昆虫标本时,发现一新属以及分别隶属于该新属和另外一属的两个新种,现将新属及新...  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   

16.
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   

17.
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   

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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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