鸣螽科(直翅目：螽亚目)昆虫研究历史与进展

鸣螽科Prophalangopsidae昆虫作为螽亚目少有的孑遗类群,对认识螽亚目系统发育和演化具有重要意义。本文综述鸣螽科的研究历史;考证并提出鸣螽科及相关类群的中文名;详述鸣螽科昆虫形态特征与生物学特性;介绍近年鸣螽科包括化石与现生属种的分类学及系统发育学研究进展,并讨论其存在的问题及对未来的展望。     

优雅蝈螽与暗褐蝈螽精子束的显微观察

本文应用微分干涉相衬法对优雅蝈螽Ｇampsocleis gratiosa Brunner von Wattenwyl和暗褐蝈螽G. sedakovii （Fischer von Waldheim） 雄性精巢管基部、输精管、贮精囊和精包,及雌性受精囊中精子束的形态变化进行了观察,对探讨螽斯近缘种的生殖隔离机制和生殖生物学具有重要意义.结果表明：这两种蝈螽的精子束通过精包转移到雌性受精囊后,精子束的形态发生了显著变化.精巢管基部的精子为游离的单个精子;输精管、贮精囊和精包中精子成束排列形成较分散的精子束,精子束头部包裹有粘液帽;雌性受精囊中的精子束的精子呈羽状排列,精子的头部汇集在中央轴上.两种蝈螽精子束形态差异不显著.     

条螽属一新种记述及尖翅条螽雌性描述(直翅目,露螽科)

报道了采自湖北神农架的条螽属Ducetia Stal 1新种,即刺条螽Ducetia spina sp．nov．,同时首次描述了尖翅条螽Ducetia attenuate Xia et Liu雌性的外部形态。模式标本保存于山西师范大学生命科学学院标本室。     

中国驼螽属两新种（直翅目：驼螽科：驼螽亚科）

记述驼螽属Rhaphidophora Audinet-Serville,1839两新种,四川驼螽Rhaphi-dophora sichuanensis Liu et Zhang,sp.nov。和小殖板驼螽Rhaphidophora minuo-lamellaLiu et Zhang,sp.nov以及中华驼螽Rhaphidophora sinica Bey-Bienko,1962的雌性补充描述。模式标本保存在中国科学院植物生理生态研究所昆虫标本馆。     

中国树螽亚科两新种：直翅目：螽斯科

本文记述了树螽亚科Phaneropterinae中安树螽属(Anisotima B.-Bienko,1951)和管树螽属(Ducetia Stal,1874)的两个新种。这两属在形态上非常相似,但可根据胸足腿节膝片上刺的有无和翅的长宽比来区别。安树螽属(Anisotima) 所有胸足腿节膝片上均不带刺,前翅较宽,它的长度不及翅宽的4倍。该属目前仅记载有两种,即A.disparB.-Bienko和A.Yunnanea B.-Bienko,均分布于中国。本文记述采自浙江的一新种。管树螽属(Ducetia)所不同的是所有胸足腿节膝片上均带有明显的刺,前翅窄长,长度是     

中国涤螽属的分类研究（直翅目：螽蟖总科：蛩螽科）

本文报道中国涤螽属Decma Gorochov,1993一新亚属副涤螽亚属Paradecma和一新种双刺副涤螽Decma (Paradecma) bispinosa sp. nov.,并附中国种检索表和缅甸异涤螽Decma (Idiodecma) birmanica (Bey-Bienko, 1971)雌性特征新描述。模式标本保存在中国科学院动物研究所。     

中国露螽科一新种记述：直翅目：螽Shi总科

本文记述露螽科Ｐｈａｎｅｒｏｐｔｅｉｄａｅ１新种：红点奇螽Ｍｉｒｏｌｌｉａｒｕｆｏｎｏｔａｔａｓｐ．ｎｏｖ．，采湖北利川。新种模式标均保存于山东大学生物系     

条螽属和桑螽属雌性发声刺的比较观察

 报道了对尖翅条螽Ducetia attenuata Xia et Liu、日本条 螽D. japonica(Thunberg)、施氏条螽D. strelkovi Gorochov et Storozhenk o和中华桑螽K uwayamaea chinensis(Brunner)、长翅桑螽K. longipennis Shi et Zheng、札 幌桑螽K.sap porensis Mats.et Shir.的雌性发声刺的观察结果。这6个种的雌性发声刺在数量与 形态上具较明显的差异。     

中国蛩螽亚科两新种：直翅目：螽Si总科

本文报道中国蛩螽亚科Ｍｅｃｏｎｅｍａｔｉｎａｅ饰尾螽属Ｃｏｓｍｅｔｕｒａ Ｙａｍａｓａｋｉ,１９８３和剑螽属Ｘｉｐｈｉｄｉｏｐｓｉｓ Ｒｅｄｔｅｎｂａｃｈｅｒ,１８９１各一新种。标本分别采自四川和西藏。模式标体保存在中国科学院上海昆虫研究所。     

Quadruplexes of human telomere DNA analogs designed to contain G:A:G:A,G:G:A:A,and A:A:A:A tetrads

Replacement of two to four guanines by adenines in the human telomere DNA repeat dG₃(TTAG₃)₃ did not hinder the formation of quadruplexes if the substitutions took place in the terminal tetrad bridged by the diagonal loop of the intramolecular antiparallel three‐tetrad scaffold, as proved by CD and PAGE in both Na⁺ and K⁺ solutions. Thermodynamic data showed that, in Na⁺ solution, the dG₃(TTAG₃)₃ quadruplex was destabilized, the least by the two G:A:G:A tetrads, the most by the G:G:A:A tetrad in which the adenosines replaced syn‐guanosines. In physiological K⁺ solution, the highest destabilization was caused by the 4A tetrad. In K⁺, only the unmodified dG₃(TTAG₃)₃ quadruplex rearranged into a K⁺‐dependent quadruplex form, none of the multiple adenine‐modified structures did so. This may imply biological consequences for nonrepaired A‐for‐G mutations. © 2010 Wiley Periodicals, Inc. Biopolymers 93: 880–886, 2010.     

Oka: Behind the Barricades: Kanehsatake: 270 Years of Resistance: Spudwrench: Kahnawake Man: My Name is Kahentiiosta: Acts of Defiance

Oka: Behind the Barricades. 1998. 312 minutes. For more information contact the National Film Board of Canada, 3155 Côte de Lisse Rd., St. Laurent, Quebec H4N 2N4. Series of four videos:
Kanehsatake: 270 Years of Resistance. 1993. 120 minutes. Directed by Alanis Obomsawin .
Spudwrench: Kahnawake Man. 1997. 58 minutes. Directed by Alanis Obomsawin .
My Name is Kahentiiosta. 1995. 30 minutes. Directed by Alanis Obomsawin .
Acts of Defiance. 1992. 104 minutes. Directed by Alec MacLeod .