钩形革伊螨新种记述和新美革伊螨特征补充(蜱螨亚纲:革螨股:土革螨科)

记述革伊螨属1新种:钩形革伊螨Gamasiphis aduncus sp.nov.,并补充新美革伊螨Gamasiphis novipulchellus Ma et Yin, 1998特征.     

革伊螨属一新种(蜱螨亚纲：土革螨科)

根据文献记载,革伊螨属Ｇａｍａｓｉｐｈｉｓ中国仅分布有美丽革伊螨Ｇ．ｐｕｌｃｈｅｌｕｓ（Ｂｅｒｌｅｓｅ,１８８７＊）。马丹梅曾于１９９６年９月２２日自辽宁省丹东市的土壤中采得美丽革伊螨６只标本（３♀♀和３）。本文记述该属１新种。文中测量单位为μｍ...     

革板螨属一新种和绒鼠革板螨雄螨及若螨描述(蜱螨亚纲:革螨股:派盾螨科)

记述革板螨属1新种：拟绒革板螨Gamasholaspis imiteothenomydis，sp.nov.，并描述绒鼠革板螨Gamasholaspis eothenomydis雄螨、后若螨和前若螨。     

新革螨属1新种记述和2已知种若螨描述(蜱螨亚纲:中气门目:寄螨科)

记述新革螨属1新种：拟裂新革螨Neogamasus peribifiditectus sp．nov．。同时对异形新革螨Neogamasus anomalus Ma et Yan,1998和皱形新革螨Neogamasus crispus Ma et Yan,1998若螨进行描述。     

丹东革螨采集记录（Ⅱ）及乳突寄螨雄螨和后若螨描述（蜱螨亚纲）

本文记录1996年马丹梅采自辽宁省丹东市土壤中的革螨。其中乳突寄螨Parasitusmam-millatus(Berlese,1904),在已查到的文献中仅Micherdzinski(1969)记载了雌螨和雄螨,但他描述的雄螨并不是乳突寄螨,而是季氏寄螨ParasitustichomiroviDavydova,1971。文中也未描述成螨前各期。今根据丹东标本描述乳突寄螨的雄螨及后若螨。文中测量单位为μm。1.茅舍血厉螨Haemolaelapscasalis(Berlese,1887)标本6♀♀,1♂,3后若螨。世界性分布。2.矮肛厉螨Proctolaelapspygmaeus(Müller,1860)标本3♀♀。过去记载国内分布于江西、云南。3.美丽革伊螨Gamas…     

派伦螨属1新种和革板螨属1新种及都匀革板螨雄螨描述(蜱螨亚纲:中气门目:派盾螨科)

记述派伦螨属1新种:遵义派伦螨Parholaspulus zunyiensis sp.nov.和革板螨属1新种:江西革板螨Gamasholaspis jiangxiensissp.nov.,并描述都匀革板螨Gamasholaspis duyunensis Chen,Guo et Gu,1994雄螨.     

寄螨属1新种和新革螨属1新种(蜱螨亚纲:中气门目:寄螨科)

记述寄螨属1新种:棒毛寄螨Parasitus clavasetosus sp.nov.和新革螨属1新种:丛枝新革螨Neogamasus fasciculus sp.nov.     

青海甘肃革螨二新种

1960～1961年,在青甘两省海拔3,000～3,500米处采到许多革螨,其中发现犹伊螨科Eviphididae 1新种和维螨科Veigaiaidae 1新种,兹记述如下。标本保存于吉林省地方病第一防治研究所。 1.喜马拉雅犹伊螨Eoiphis himalayaensis,新种 鉴别特征:本新种接近于印度犹伊螨(Eviphis indicus Bhattacharyya,1971),但♂、♀侧腹板与气门板紧相靠近;St_3、MSt和VI_1较St_1和St_2明显粗短;Ad近肛孔前缘     

异伊螨属二新种(蜱螨亚纲:犹伊螨科)

本文记述异伊螨属AlliphisHalbert,1923二个新种：玉溪异伊螨Alliphisyuxiensissp．nov．及大异伊螨Alliphismagnussp.nov.,模式标本采自云南省元江县的蜣螂体上,保存于南京大学医学院寄生虫学教研室。     

双色革鞍螨雄螨及后若螨描述(蜱螨亚纲:中气门目:胭螨科)

描述双色革鞍螨Gamasellodes bicolor(Berlese,1948)雄螨及后若螨.     

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.