内蒙古西部地区蝗虫的新属和新种(直翅目:蝗总科)

本文记述在内蒙古西部贺兰山及雅布赖山地区蝗总科昆虫２新属３新种,即方额蝗属Ｑｕａｄｒｉｖｅｒｔｉｃｉｓ,ｇｅｎ．ｎｏｖ．;小方额蝗Ｑｕａｄｒｉｖｅｒｔｉｃｉｓｅｌｅｇａｎｓ,ｓｐ．ｎｏｖ．;贺兰山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓｈｅｌａｎｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．;小垫蝗属Ｐｕｓｉｌａｒｏｌｉｕｍ,ｇｅｎ．ｎｏｖ．及白纹小垫蝗Ｐｕｓｉｌａｒｏｌｉｕｍａｌｂｏｎｅｍｕｍ,ｓｐ．ｎｏｖ．。模式标本保存在陕西师范大学动物研究所。     

内蒙古西部地区蝗虫的新属和新种

本文记述在内蒙古西中贺兰山及雅布赖山地区蝗总科昆虫２新属３新种,即方额蝗属Ｑｕａｄｒｉｖｅｒｔｉｃｉｓ,ｇｅｎ．ｎｏ．;小方额蝗Ｑｕａｄｒｉｖｅｒｔｉｃｉｓ ｅｌｅｇａｎｓ,ｓｐ．ｎｏｖ．;贺兰山雏Ｃｈａｒｔｈｉｐｐｕｓ ｈｅｌａｎｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．;小垫蝗属Ｐｕｓｉｌｌａｒｏｌｉｕｍ,ｇｅｎ．ｎｏｖ．及白纹小垫蝗Ｐｕｓｉｌｌａｒｏｌｉｕｍ ａｌｂｏｎｅｍｕｍ,ｓｐ．ｎｏｖ．。模式     

滇西斑腿蝗科的新属和新种记述（直翅目：蝗总科）

本文记述自云南省西部横断山地区斑腿蝗科一新属二新种,即清水蝗属Ｑｉｎｓｈｕｉａｃｒｉｓ,ｇｅｎ,ｎｏｖ。绿清水蝗Ｑｉｎｓｈｕｉａｃｒｉｓｖｉｒｄｉｓ,ｓｐ．ｎｏｖ。及突缘拟凹背蝗Ｐｓｅｕｄｏｐｔｙｇｏｎｏｔｕｓｐｒｏｍｉｎｅｍａｒｇ ｉｎｉｓ．ｓｐ．ｎｏｖ。模式标本保存在陕西师范大学动物研究所。     

东北地区蝗虫－新属及三新种（直翅目：蝗总科）

本文记述了采自东北地区蝗虫的一新属,拟蹦蝗属Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｇｅｎ．ｎｏｖ．及三新种,千山拟蹦蝗Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｑｉａｎｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．、草绿拟蹦蝗Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｐｒａｓｉｎａｓｐ．ｎｏｖ．和长白山玛蝗Ｍｉｒａｍｅｌｌａｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．。模式标本保存于陕西师范大学动物研究所。     

四川及重庆地区蝗虫的新属和新种：（直翅目：蝗总科：斑腿蝗科）

本文记述采自四川青城山及重庆缙云山蝗虫１新属２新种,即斑腿蝗科的降背蝗属Ｇｉｂｂｉｔｅｒｇｕｍ,ｇｅｎ．ｎｏｖ;青城山隆背蝗Ｇｉｂｂｉｔｅｒｇｕｍ ｑｉｎｇｃｈｅｎｇｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．及红角腹露蝗Ｆｒｕｈｓｔｏｒｆｅｒｉｏｌａ ｒｕｂｉｃｏｒｎｉｓ,ｓｐ．ｎｏｖ．。模式标本保存于陕西师范大学动物研究所。     

南疆束颈蝗属二新种：蝗总科：斑翅蝗科

本文记述采自新疆南部地区束颈蝗属二新种,叶城束颈蝗Ｓｐｈｉｎｇｏｎｏｔｕｓｙｅｃｈｅｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．及塔克拉玛束颈蝗Ｓｐｈｉｎｇｏｎｏｔｕｓ ｔａｋｒａｍａｅｎｓｉｓ ｓｐ．ｎｏｖ．模式标本保存于陕西范大学动物研究所标本室。     

广西蝗虫新种记述：直翅目：斑腿蝗科

本文记述采自广西元宝山斑腿蝗科佯越蝗属、卵翅蝗属各１新种──尤氏佯越蝗Ｐａｒａｔｏｎｋｉｎａｃｒｉｓｙｏｕｉ,ｓｐ．ｎｏｖ．及元宝山卵翅蝗Ｃａｒｙａｎｄａｙｕａｎｂａｏｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．模式标本保存于广西科学院生物研究所标本室。     

湖南省八面山自然保护区蝗虫二新种(直翅目:斑腿蝗科)

记述斑腿蝗科Ｃａｔａｎｔｏｐｉｄａｅ拟稻蝗属Ｏｘｙｏｉｄｅｓ Ｚｈｅｎｔ ｅｔ Ｆｕ,１９９４一新种,八面山拟稻．ｂａｍｉａｎｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．和华蝗属Ｓｉｎａｃｒｉｓ Ｔｉｋｈａｍ,１９４０一新种,湖南华Ｓ．ｈｕｎａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,标本采自湖南郴州八面山自然保护区。     

山西雏蝗属二新种记述(直翅目:网翅蝗科)

记述山西省吕梁地区雏蝗属Ｃｈｏｒｔｈｉｐｐｕｓ Ｆｉｅｂｅｒ,１８５２二新种,即似鹤立雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｆｕｓｃｉｐｅｎｎｏｉｄｅｓ Ｍａ,Ｚｈｅｎｇ ｅｔ Ｇｕｏ,ｓｐ．ｎｏｖ．和关帝山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｇｕａｎｄｉｓｈａｎｅｎｓｉｓ Ｍａ,Ｚｈｅｎｇ ｅｔ Ｇｕｏ,ｓｐ．ｎｏｖ．。模式标本保存于山西大学生命科学系动物标本室。     

四川省坳蝗属一新种：直翅目：蝗总科

本文记述采自四川省会理县网翅蝗科１新种──四川坳蝗Ａｕｌａｃｏｂｏｔｈｒｕｓｓｉｃｈｕａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．模式标本保存于山西大学生命科学系。     

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.