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1.
对中国齿琵甲属Itagonia Reitter昆虫进行了整理,并记述中国西藏齿琵甲属1新种:巴宿齿琵甲I.baxoica sp.nov..列出了该属中国已知种检索表.模式标本保存于河北大学博物馆.  相似文献   

2.
报道了中国甲衣属Parmeliella 6种,其中小裂片甲衣P. appalachensis、喜马拉雅甲衣P. himalayana、刻边甲衣P. pannosa和甲衣P. thriptophylla 4个种为中国新记录。给出了这6个种的分类学特征、分布和检索表,以及4个中国新记录种的图片。  相似文献   

3.
本文记述中国珠足甲螨属的一新种角珠足甲螨,珠足甲螨属和孔珠足甲螨属中国6个新纪录种:南方珠足甲螨、俄罗斯珠足甲螨,疣珠足甲螨,塞氏珠足甲螨,棒珠足甲螨和刺孔珠足甲螨,并对上部分种类作了补充描述。  相似文献   

4.
记述中国彩菌甲属Ceropria Castelnau et Brullé 13种,包括2新种:异色彩菌甲C.variabilies sp. nov.,深沟彩菌甲C.punctata sp. nov..提供了中国已知种检索表.模式标本保存在河北大学博物馆.  相似文献   

5.
对中国宽漠甲属Sternoplax Frivaldszky进行了分类整理,共计4亚属10种,含2新种:双脊宽漠甲Sternoplax bicarinata sp.nov.和隆脊宽漠甲Sternoplax lineola sp.nov.;给出中国已知种检索表及其名录,绘制了新种的形态特征图.模式标本保存于河北大学博物馆.  相似文献   

6.
洼甲螨科的分类研究进展(蜱螨亚纲:甲螨目:懒甲螨总科)   总被引:1,自引:0,他引:1  
洼甲螨科隶属于蜱螨亚纲甲螨目懒甲螨总科,是低等甲螨中进化相对较高级,介于低等甲螨和高等甲螨之间的过渡类群,广泛分布于世界各大动物地理区,目前全世界有3属5亚属79种5亚种,国内现知2属16种.综述了洼甲螨科该科的分类沿革及分类研究进展;概述了洼甲螨科各属(亚属)的地理分布,指出该科目前所知分布较多的是古北界、新北界、东洋界;对中国洼甲螨科已知种进行了区系总结,目前青藏区和蒙新区各仅知1种,主要原因是缺乏深入研究;编制了洼甲螨科3个属及5个亚属和中国已知2属16种的分类检索表.  相似文献   

7.
记述球须跳甲属Acrocrypta Baly,1862的中国种类共计5种,其中包括1新种,即紫铜球须跳甲Acrocrypta Violaceicuprea Wang,sp.nov.;给出了球须跳甲属中国已知种的名录、地理分布以及检索表.模式标本保存于中国科学院动物研究所.  相似文献   

8.
本文记述了丽甲螨科Liacaridae丽甲螨属LiacarusMichael,1898的四新种:多叉丽甲螨L.polychothomussp.nov.,宽突丽甲螨L.latiusculussp.nov.,峨眉丽甲螨L.emeiensissp.nov.,北丽甲螨L.borealissp.nov.,并报道一个中国新纪录种直角丽甲螨L.orthogoniosAoki,1959。本文对新种进行了形态特征描述并与近似种作了比较鉴别。  相似文献   

9.
记述采自西藏林芝地区锹甲科Lucanidae鬼锹甲属Prismognathus中国1新纪录种——吹拔氏鬼锹甲Prismognathus fukinukii Nagai,并给出了新纪录种的整体图,标本保存于西藏大学农牧学院。  相似文献   

10.
吴珑  金道超 《四川动物》2012,31(4):614+689
记述采自云南地区锹甲科Lucanidae深山锹甲属Lucanus中国1新纪录种——普氏深山锹甲Lucanus prossi Zilioli,2000,并给出了新纪录种的外形图,标本保存于贵州大学昆虫研究所。  相似文献   

11.
The cell has been represented as a charged liquid drop. Contrary to the DLVO-theory, the effect of the surface potential upon the value of the interfacial tension of the cell membrane has also been taken into consideration. The cell membrane has visco-elastic properties and its constituents may move against each other. Cell movement is caused by the appearance of a small number of the electrically charged constituents of the cell membrane on the leading edge of the cell. This produces a local decrease in the surface tension and the cell membrane expansion. At the moment of contact between two cells proton transfers occur between the strongly negatively charged microvilli of one cell and the body of the other, analogous to a condenser breakdown. This, through the effect on the surface tension, causes contact inhibition of movement. The distribution of the proton dissociable groups modifies the interaction between the cells (differentiation) and between the cell and the substratum (adhesion). Adsorption of the charged compounds at the surface of the cell membrane, decreasing the surface potential and increasing the surface tension, causes the phenomena of chemotaxis, phagocytosis and pinocytosis. Cell division, considered in the terms of the surface energy, requires an adequate supply of considerable quantities of energy inversely proportional to the surface potential value. In case of a reduction of the distance between the cells, their surface potential and the energetic barrier of the cell division processes increases, and causes contact inhibition of cell division. Due to their high charge, division of neoplastic cells is inhibited much later than division of normal cells, or is completely ininhibited due to geometric conditions. Fusion of the cell membrane in the intra-cellular and intercellular processes is a reverse process in relation to the cell division.  相似文献   

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The effect of age and gender on major, minor, and trace element contents in the intact rib bone of 80 relatively healthy 15–55-year-old women and men was investigated. Contents or upper limit of contents of 16 chemical elements in the rib bone were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Mean values (M?±?SΕΜ) for the mass fraction of Ba, Ca, Cu, Fe, K, Li, Mg, Na, P, S, Sr, and Zn (milligram per kilogram of dry bone) were as follows: 2.54?±?0.16, 171,400?±?4,050, 1.35?±?0.22, 140?±?11, 1,874?±?71, 0.049?±?0.011, 2,139?±?38, 5,378?±?88, 75,140?±?1,660, 1,881?±?51, 291?±?20, and 92.8?±?1.5, respectively. The upper limits of contents of Al, B, Mn, and V were <7.20, <0.65, <0.36, and <0.03, respectively. Statistically significant tendency for the Ca, Mg, and P content to decrease with age was found in the human rib bone, regardless of gender. The mass fraction of Fe in the male rib bone increases with age. It was shown that higher Ca, Mg, Na, P, and Sr mass fractions as well as lower Fe content were typical of female ribs as compared to those in male ribs.  相似文献   

14.
Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.  相似文献   

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Acute and chronic toxicity tests for malathion, diazinon, copper (Cu), mercury (Hg), lead (Pb), zinc (Zn), nickel (Ni), and iron (Fe) were conducted. Mortalities ofBarilius vagra andCyprinus carpio (common carp) were variable but LC50-96 hr were similar for pesticides. AdultB. vagra seem to be more sensitive to malathion than juvenile carp. Both juvenile carp and adultB. vagra were extremely sensitive to diazinon. Long-term exposure to pesticides modified morphology and behavior. The LC50-96 values for Cu, Hg, and Pb were 0.3, 0.16, and 0.44, respectively, for smaller fish and 1.0, 0.77, and 1.33, respectively, for larger fish. Replicate LC50 values for Zn, Ni, and Fe were somewhat variable, and for these metals, the size of the fish seemed to affect response because LC50 values increased as fish size increased. Cooper, Pb, Zn, and Fe residues following exposure to sublethal concentrations of these metals for 15 d were significantly greater in whole juvenile common carp than in controls.  相似文献   

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20.
2-Dimethylaminomethylene-1-benzosuberone 1 was coupled with diazotized aniline derivatives to afford a series of the hitherto unreported 2-arylazo-1-benzosuberones 3ai. The tautomeric structure and the effect of substituents on the tautomeric form (s) of the products 3ai were discussed. Similar coupling of the enaminone 1 with diazonium salts of heterocyclic amines gave the respective fused azolotriazino-benzosuberones. Some of the newly synthesized compounds showed potent antimicrobial, anti-HCV, antioxidant, antitumor (as topoisomerase I inhibitors), and antimicrobial activities.  相似文献   

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