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云南西部狭臀蚤属四新种记述:蚤目:多毛蚤科 总被引:2,自引:1,他引:1
本文报告云南西部狭臀蚤属Steni(?)chia 4新种:1)金氏狭臀蚤,新种 S.chini sp.nov.与锐额狭臀蚤 S.angustifrontalis Xie et Gong接近;2)李氏狭臀蚤,新种 S.liae sp.nov.与金氏狭臀蚤新种和锐额狭臀蚤接近;3)柳氏狭臀蚤,新种 S.liui sp.nov.与李氏狭臀蚤新种和高山狭臀蚤S.montanis xie et Gong接近。4)吴氏狭臀蚤,新种 S.wui sp.nov.与卢氏狭臀蚤 S.lewis Smit接近。本文认论了李氏狭臀蚤新种与金氏狭臀蚤新种的形态分类及本属蚤类的宿主等生态问題,并编制本属14种的检索表。 相似文献
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本文记述狭臀蚤属Stenischia Jordan,1932一新种,鄂西狭臀蚤Stenischia exiensis sp.nov.采自湖北省西北部神农架林区的短属鼠句Anourosorex squamipes squamipes、川鼠句Blarinella quadratiicauda griselda和大林姬鼠Apodemus speciosus体上,正模标本♂和配模标本♀保存于福建医学昆虫研 相似文献
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我们从陕西省南部大巴山(安康地区平利县千家坪林场,位于东经109°15′,北纬31°50′)采获一批蚤类标本,经鉴定其中有狭蚤属 Stenoponia Jordan et Rothschild,1911新种。根据其模式产地,命名为大巴山狭蚤,兹记述如下。 大巴山狭蚤 Stenoponia dabashanensis新种 鉴别特征 新种烦栉刺数和下唇须仅一节,与上海狭蚤 Stenoponia shanghaiensis Liu et Wu 1960 兰狭蚤 S. coclcstis Jordan et Rothschild, 1911 和短距狭蚤S. formozovi Ioff et Tiflov, 1934接近。但下列特征可以区别:1)第9腹板后臂近端部 相似文献
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四川黑水多毛蚤属一新种(蚤目:多毛蚤科)李贵真,刘连珠贵阳医学院生物学教研室,贵州省贵阳市550004第三军医大学寄生虫学教研室,四川省重庆市630000关键词蚤目,多毛蚤科,多毛蚤属,新种四川我们在整理早年所采蚤类标本时,发现采自四川黑水的多毛蚤1... 相似文献
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单蚤属一新种记述(蚤目:角叶蚤科)张荣广,吴德强,李宝肃(甘肃省地方病防治研究所兰州730030)在鉴定甘肃省单蚤属Mo。op。yllu。Kolenati,1857的跳蚤时,发现在形态上与花鼠单蚤Monopsyllu。。ndag。sRotlischl... 相似文献
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中国鬃蚤属一新种记述(蚤目:蠕形蚤科) 总被引:2,自引:1,他引:1
1992年3月,从湖北省西北部神农架林区捕获的一只赤狐(Vulpesvulpeshoole)体上采得一批蚤类标本,经鉴定其中有一只雄蚤系鬃蚤属ChaetopsyllaKohaut,19O3,鬃蚤亚属ChaeopsyllaKohaut,1903的一新种,为了尊敬王敦请教授在我国医学昆虫学研究方面所作出的贡献和近年来对作者工作给予的热情指导,谨将新种命名为王氏鬃蚤ChaetoP-sylla仅方aeroPsylla)wangisP.nov,以表敬意。王氏鬃蚤ChaetoPsylla(ChaetoPs/la)wangi新种(图1~4)(鉴别特征:本新种与大熊猫鬃蚤Ch。topsyva仪X。topsylle)aju。nd。Jeu,WangetLi,1991”… 相似文献
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盲鼠蚤属一新种及无窦盲鼠蚤雄蚤的发现(蚤目:细蚤科) 总被引:2,自引:2,他引:0
记述盲鼠蚤属Typhlomyopsyllus Li et Huang,1980一新种,刘氏盲鼠蚤Typhlomyopsyllus liui sp.nov.及无窦盲鼠蚤T.esinus Liu,Shi et Liu,1985的雄蚤,前者模式标本采自鄂西南五峰县后河自然保护区与湘西北石门县壶瓶山自然保护区两省交界处的猪尾鼠Typhlomys cinereus体上。 相似文献
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K Dolowy 《Journal of theoretical biology》1975,52(1):83-97
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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Vladimir Zaichick Sofia Zaichick Vasilii Karandashev Sergey Nosenko 《Biological trace element research》2009,129(1-3):107-115
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
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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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2-Dimethylaminomethylene-1-benzosuberone 1 was coupled with diazotized aniline derivatives to afford a series of the hitherto unreported 2-arylazo-1-benzosuberones 3a–i. The tautomeric structure and the effect of substituents on the tautomeric form (s) of the products 3a–i 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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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