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1.
研究了中国卡绵蚜属Kaltenbachiella Schouteden,共记述3种,光滑卡绵蚜K.glabra Akimoto,1985,尼卡绵蚜K.nirecola(Matsumura,1917),榆卡绵蚜K.ulmifusa (Walsh and Riley,1869)和1亚种,白卡绵蚜东台亚种K.pallida dongtainesis Zhang,1997.其中尼卡绵蚜和榆卡绵蚜为2新纪录种.提供了分种检索表、形态记述、寄主植物、地理分布及形态特征图.研究标本保存在中国科学院动物研究所动物标本馆.  相似文献   

2.
中国瘿绵蚜属的地理分布(同翅目:瘿绵蚜科)   总被引:2,自引:1,他引:1  
以中国分布的25种瘿绵蚜属Pemphigus蚜虫为材料,研究了瘿绵蚜属在中国的分布特点。结果表明,该属蚜虫在古北界和东洋界均有分布,但古北界占绝对优势。在中国昆虫地理区划中,7个区均有分布,但以华北区和青藏区最为丰富,华中区和华南区最少。除华中区和华南区外,各区均有特有成分分布,县以华北区和青藏区最盛。由于没有明显的地理阻隔,华北区、东北区、蒙新区之间有种类交流现象存在,而它们与青藏区和西南区之间  相似文献   

3.
中国新纪录属--小裂绵蚜属(同翅目,瘿绵蚜科)   总被引:1,自引:0,他引:1  
研究了中国瘿绵蚜科Pemphigidae 1新纪录属--小裂绵蚜属Schizoneurella Hille Ris Lambers,1973;记述1新纪录种,印度小裂绵蚜Schizoneurella indica Hille Ris Lambers,1973.标本采自云南省昭通市,该种在苹果Malus pumila根部取食,蚜虫是重要的苹果害虫,可造成较大经济损失.文中提供了各型检索表、形态记述、寄主植物及地理分布,配有形态特征图和野外生态照片.研究标本保存在中国科学院动物研究所动物标本馆和英国自然历史博物馆.  相似文献   

4.
中国绵蚜属六新种记述(同翅目:蚜总科:瘿绵蚜科)   总被引:1,自引:1,他引:0  
本文记述了中国绵蚜属Eriosoma Leach,18186新种,即短角绵蚜Eriosoma antennieurfum Zhang,sp.nov.,蜡绵蚜E.cerum Zhang,sp.nov.,阜康绵蚜E.fukangense Zhang,sp.nov.,螺叶绵蚜E.spirifolium Zhang,sp.nov.,土贵绵蚜E.togrogum Zhang,sp.nov.和乌苏棉蚜E.us  相似文献   

5.
拟爪绵蚜新属及三新种记述 (同翅目:蚜总科:瘿绵蚜科)   总被引:4,自引:0,他引:4  
该文记述了瘿绵蚜科一新属拟爪绵蚜属SiciunguisZhangetQiaogen.nov.和这个属的二个新种,即十绵蚜S.decimaZhangetQiao,sp.nov.,九绵蚜S.novenaZhangetHu,sp.nov.,另外还记述了爪绵蚜属AphidounguisTakahashi,1963一个新种,苹果根爪绵蚜A.pomiradicolaZhangetHu,sp.nov.,模式标本存放在中国科学院动物研究所.拟爪绵蚜新属SiciunguisZhangetQiaogen.nov.模式种:十绵蚜SiciunguisdecimaZhangetQiao,sp.nov.本新属与爪绵蚜属AphidounguisTakahashi,1963和绵蚜属EriosomaLeach,1818有较近的亲缘关系,不同在于:有翅孤雌蚜腹管位于腹部背片Ⅵ,隆起,周围有毛环绕(前者:位于背片Ⅵ,不隆起,无毛环绕;后者:位于背片Ⅴ,隆起,有毛环绕);触角稍长,至少为体长0.35,具有线形次生感觉圈;后者:稍长,至少为体长0.40,具有环形次生感觉圈)。十绵蚜SiciunguisdecimaZhangetQiao,sp.nov  相似文献   

6.
本文记述了同翅目瘿绵蚜科卷叶绵蚜属一新种丁香卷叶绵蚜Prociphilus gambosae sp.nov.和白蜡树卷叶绵蚜Prociphilus fraxini(Fabricius,1777)及忍冬卷叶绵蚜Prociphilus xylostei(De Geer,1773)两个中国新记录种。文中系统研究了该属的标本,给出了无翅孤雌蚜的分种检索表。  相似文献   

7.
中国毛根蚜属研究及新种记述(同翅目:瘿绵蚜科)   总被引:1,自引:0,他引:1  
中国毛根蚜属研究及新种记述(同翅目:瘿绵蚜科)张万玉,张广学(中国科学院动物研究所北京100080)田士波(河北省农业科学院植物保护研究所保定071001)本文记述采自河北涉县的毛根蚜属一新种:小廖毛根蚜Chaetogeoica。triculat。、...  相似文献   

8.
中国卷叶绵蚜属研究及新种记述(同翅目:瘿绵蚜科)   总被引:1,自引:0,他引:1  
张广学  田士波 《动物学报》1993,39(4):368-373
本文记述同翅目瘿绵蚜科卷顺绵蚜属一种丁香卷叶绵蚜Prociphilus gambosae sp.nov,和白蜡树卷叶绵蚜Prociphilus fraxini(Fabricius,1777)及忍冬卷叶绵蚜Prociphilus xylostei(De Geer,1773)两个中国新记录种,文中系统研究了该属的标本,给出了无翅孤雌蚜的分种检索表。  相似文献   

9.
张广学  乔格侠 《昆虫学报》1997,40(4):393-401
本文记述了中国绵蚜亚科Eriosomatinae种新和2新亚种,即:北扣绵蚜新种Colophina arc tica Zhang et Qiao,sp.nov.,多室四脉绵蚜新种了Tetraneura olychorema Zhang,sp.nov.,食榆四脉 绵蚜新种T.Ulmicema Zhang,sp.nov.,白卡绵蚜东台新亚种Kaltenbachiella pallida dongtaiensis Zhang ssp.Nov.和钉四脉绵蚜冰草新亚种Tetraneura capitatatusagropyricena Zhang,ssp.Nov.模式标本保存在中国科学院动物研究所。  相似文献   

10.
记述了瘿绵蚜科一新属,迪卷绵蚜属Diprociphilus Zhang and Qiao和一新种,各葱迪卷绵蚜Diprociphilus allivorus Zhang,Qiao and Zhaox。同时,提供了形态特征,与近缘属的示差鉴别,寄主植物,地理分布和10幅形态特征图。模式标本保存在中国科学院动物研究所昆虫标本馆。  相似文献   

11.
The goal of this article was to establish reference ranges of the concentration of trace elements in human serum and to compare these results with those reported by other authors. We describe the sample preparation and measurement conditions that allow the rapid, precise, and accurate determination of Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum samples (n=110) by inductively coupled plasma-mass spectrometry (ICP-MS). Accuracy and precision were determined by analyzing three reconstituted reference serum samples by comparison with other methods and by the standard addition procedure. The advantages of the ICP-MS method include short time of analysis of the elements mentioned, low detection limit, high precision, and high accuracy. Disadventages include a high risk of contamination due to the presence of some of the elements of interest in the environment, the relatively delicate sample handling, and the high cost of the equipment.  相似文献   

12.
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   

13.
A new polynitro cage compound 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptcyclo [5.5.1.1(3,11).1(5,9)] pentadecane (NNNAHP) was designed in the present work. Its molecular structure was optimized at the B3LYP/6-31 G(d,p) level of density functional theory (DFT) and crystal structure was predicted using the Compass and Dreiding force fields and refined by DFT GGA-RPBE method. The obtained crystal structure of NNNAHP belongs to the P-1 space group and the lattice parameters are a = 9.99 ?, b = 10.78 ?, c = 9.99 ?, α = 90.01°, β = 120.01°, γ = 90.00°, and Z = 2, respectively. Based on the optimized crystal structure, the band gap, density of state, thermodynamic properties, infrared spectrum, strain energy, detonation characteristics, and thermal stability were predicted. Calculation results show that NNNAHP has detonation properties close to those of CL-20 and is a high energy density compound with moderate stability.  相似文献   

14.
This report attempts to formulate reference ranges of elemental concentrations for 15 trace elements in selected human tissues and body fluids. A set of samples consisting of whole blood, blood serum, urine, milk, liver, and hair were chosen and considered for 15 elements of biological significance: As, Cd, Co, Cr, Cu, F, Fe, I, Hg, Mn, Mo, Ni, Pb, Se, and Zn. The results represent wholly or partially data received from 40 countries of the global regions of Africa, Asia, Europe, North, South, and Central America, Australia, and New Zealand. This survey, even if qualitative, has been useful in demonstrating certain trends of trace-element scenarios around the world. It is of course recognized that both diet and environment exert a strong influence on the distribution pattern of several elements, such as As, Cd, Mn, Pb, Se, and Zn. A limited comparison of the available information on soil status of different countries reflected some interesting associations for elements, such as Mn and Zn. Importantly, this study revealed that only a few countries were in a position to identify a reasonable amount of data on samples requested for this project. Regretably, for a number of countries, any dependable data for even such essential elements as Cu, Fe, and Zn were not available. In view of the nutritional importance of many elements, the time is ripe for concerted efforts by intergovernmental agencies to initiate investigations or commission task forces/projects to generate reliable reference data for selected global regions, which sadly lack data of any kind at present.  相似文献   

15.
The variation with age of the 18 trace element mass fractions and some histological characteristics of intact prostate glands of 50 subjects aged 0–30 years was investigated by instrumental neutron activation analysis, inductively coupled plasma atomic emission spectrometry, and a quantitative morphometric analysis. Mean values ± standard error of the mean (M ± SΕΜ) for the mass fractions (in milligrams per kilogram wet tissue) of these trace elements in pre-puberty were: Al 28.5 ± 9.0, B 0.40 ± 0.11, Ba 1.48 ± 0.44, Br 10.5 ± 1.5, Ca 241 ± 30, Cl 3,203 ± 278, Cu 3.51 ± 0.89, Fe 33.7 ± 4.1, K 2,364 ± 145, Li 0.020 ± 0.004, Mg 153 ± 23, Mn 0.46 ± 0.06, Na 2,286 ± 130, P 1,391 ± 100, S 1,698 ± 132, Si 62 ± 11, Sr 0.38 ± 0.08, and Zn 27.6 ± 2.3. During puberty and postpuberty, when there is a significant increase in circulating androgens, the mean values were: Al 7.2 ± 1.4, B 0.21 ± 0.05, Ba 0.25 ± 0.06, Br 5.8 ± 1.0, Ca 433 ± 81, Cl 2,314 ± 201, Cu 1.77 ± 0.13, Fe 20.9 ± 1.6, K 2,585 ± 118, Li 0.0088 ± 0.0014, Mg 232 ± 27, Mn 0.34 ± 0.04, Na 1,875 ± 107, P 1,403 ± 98, S 1,673 ± 73, Si 22.2 ± 3.1, Sr 0.22 ± 0.03, and Zn 93.3 ± 8.9. Mean values (M ± SΕΜ) of percent volumes (%) of the stroma, epithelium and lumen in the prostate before puberty were 73.4 ± 2.6, 20.4 ± 1.7, and 4.45 ± 0.94, respectively, versus 46.5 ± 2.5, 38.5 ± 1.9, and 14.9 ± 1.2 during puberty and postpuberty. This work’s results confirm that the Zn mass fraction in prostate tissue is an androgen-dependent parameter. For the first time it has been demonstrated that the glandular lumen is a main pool of Ca, Mg, and Zn accumulation and that the stroma is a main pool of Al, B, Ba, Br, Cl, Cu, Fe, Mn, Na, and Si accumulation in the normal human prostate, for the age range 0–30 years. It was concluded that the Ca, Mg, and Zn binds tightly within the prostatic fluid, because the volume of glandular lumen reflects the volume of prostatic fluid.  相似文献   

16.
The unitary conductances and permeability sequences of the rat connexin40 (rCx40) gap junction channels to seven monovalent cations and anions were studied in rCx40-transfected neuroblastoma 2A (N2A) cell pairs using the dual whole cell recording technique. Chloride salt cation substitutions (115 mM principal salt) resulted in the following junctional maximal single channel current-voltage relationship slope conductances (γj in pS): CsCl (153), RbCl (148), KCl (142), NaCl (115), LiCl (86), TMACl (71), TEACl (63). Reversible block of the rCx40 channel was observed with TBA. Potassium anion salt γj are: Kglutamate (160), Kacetate (160), Kaspartate (158), KNO3 (157), KF (148), KCl (142), and KBr (132). Ion selectivity was verified by measuring reversal potentials for current in rCx40 gap junction channels with asymmetric salt solutions in the two electrodes and using the Goldman-Hodgkin-Katz equation to calculate relative permeabilities. The permeabilities relative to Li+ are: Cs+ (1.38), Rb+ (1.32), K+ (1.31), Na+ (1.16), TMA+ (0.53), TEA+ (0.45), TBA+ (0.03), Cl (0.19), glutamate (0.04), and NO3− (0.14), assuming that the monovalent anions permeate the channel by forming ion pairs with permeant monovalent cations within the pore thereby causing proportionate decreases in the channel conductance. This hypothesis can account for why the predicted increasing conductances with increasing ion mobilities in an essentially aqueous channel were not observed for anions in the rCx40 channel. The rCx40 effective channel radius is estimated to be 6.6 Å from a theoretical fit of the relationship of relative permeability and cation radius.  相似文献   

17.
18.
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   

19.
Nine blood group systems of goats were identified using 12 caprine reagents produced by absorption of alloimmune antisera. The caprine C blood group system, possibly homologous to the ovine C blood group system, was characterized by two reagents and shown to be controlled by three alleles,C 12,C 25, andC . A more complex blood group system of goats, designated G, was identified using three reagents and shown to be controlled by six codominant alleles (G 10.19.20,G 10.19,G 10.20,G 10,G 19,G 20) and a recessive allele (G ). A further seven one-factor two-allelic systems were identified by seven reagents. The nine genetic systems provided exclusion probabilities of 0.479, 0.492, 0.548, and 0.572 in Australian Angora, Dairy, Cashmere, and Texan Angora goat breeds, respectively. This work was supported by a grant from the Australian Stud Book, Alison Road, Randwick, New South Wales 2031, Australia.  相似文献   

20.
《Ibis》1894,36(3):447-460
  相似文献   

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