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1.
本文记述了贵州省穴居倍足类,棍跗雕背带马陆Epanerchodus stylotarseus sp.nov.一新种,其鉴别特征为雄性生殖肢:胫跗节呈细长的棍状,而后股节具有成列的锯齿。  相似文献   

2.
滇马陆属(Yunnanina)隶属于倍足纲(Diplopoda)、带马陆目(Polydesmoidea)、奇马陆科(Paradoxosomatidae),是我国的一个特有属。1936年,阿特姆斯(Attems)记述了此属的模式种:腹突滇马陆(Yunnanina ceratogaster)。最近我们发现另一新种,记述如下。 无突滇马陆Yunnanina aceratogaster sp.nov.(图1—5) 标本与产地:♂♂11个,♀♀8个;1976年5月,采自云南省昆明市近郊农田里;保  相似文献   

3.
中国西南部草马陆属一新种(倍足纲:钩马陆科)   总被引:1,自引:1,他引:0  
草马陆属 Junceustreptus为稀有的大型马陆,隶属于倍足纲Diplopoda钩马陆科Harpagophoridae;乃是1961年Demange为我国云南省的布氏马陆browningi、突马陆prominulus和婆罗洲的爽马陆jucundus 3个新种所创立的新属。1980年,Hoffman又发现四川省的另一新种,回草马陆 Junceustreptus retrorsus,并把爽草马陆分离出来,另立巴马陆属  相似文献   

4.
本文描述的新种,异齿矮瘤带马陆Nanocondylodesmusanisodentus,sp.nov.与该属的模式种栉齿矮瘤带马陆N.pectinatidentisZhang之雄性生殖肢端肢有明显的不同特征,模式标本采自福建省武夷山桐树林中。  相似文献   

5.
本文描述的新种,异齿矮瘤带马陆Nanocodylodesmus anisodentus,sp.nov.与该属的模式种栉齿矮瘤带马陆N.pectinatidentis Zhang之雄性生殖肢端肢有明显的不同特征。模式标本采自福建省武夷山桐树林中。  相似文献   

6.
记述中国剑角蝗科Acrididae华佛蝗属Sinophlaeoba Niu et Zheng,20051新种,即郑氏华佛蝗Sinophlaeoba zhengi sp.nov.。编写了该属4种的分种检索表。模式标本保存于大理学院农学与生物科学学院。郑氏华佛蝗,新种Sinophlaeoba zhengi sp.nov.(图1~11)新种近似于老阴山华佛蝗S.laoyinshanMao,OuetRen和短翅华佛蝗S.brachyptera Mao,OuetRen,与二者的区见表1。正模♂,云南元江那诺,海拔1732m,2009-11-29,自旺采。副模1♀,云南元江那诺,2008-07-14,卫微采。词源:新种种名以郑哲民教授的姓氏命名,以示对他昆虫分类领域做出突出贡献的敬意。表1郑氏华佛蝗与老阴山华佛蝗和短翅华佛蝗的比较老阴山华佛蝗S.laoyinshan郑氏华佛蝗,新种S.zhengi sp.nov.短翅华佛蝗S.brachyptera雄性头长等于前胸背板长雄性头长略长于前胸背板长,雌性头长近等于前胸背板长雄性头长长于前胸背板长,雌性头长近等于前胸背板长雄性触角较短,达到后足基节雄性触角较长,达到后足股节的1/5雄性触角较短,达到后足基节雄性前翅达到第3腹节后缘或后足股节的1/4雄性前翅略超过第4腹节后缘或后足股节的1/3,雌性达到第3腹节中部雄性前翅几达到第5腹节后缘或后足股节的1/2,雌性达到第4腹节后缘阳具基背片背观桥呈弧形,桥与侧板间夹角呈直角形,锚状突顶端较远地超过桥,侧板后突指向后方阳具基背片背观桥近直,桥与侧板间夹角呈钝角形,锚状突顶端较远地超过桥,侧板后突指向外后方阳具基背片背观桥近直,桥与侧板间夹角明显呈钝角形,锚状突顶端略超过桥,侧板后突指向外方  相似文献   

7.
中国悠背蚱属一新种记述(直翅目,蚱总科,蚱科)   总被引:2,自引:2,他引:0  
记述采自广西九万山地区悠背蚱属1新种,即拟毛股悠背蚱,新种 Euparatettix barbifemuraoides sp.nov..模式标本保存在陕西师范大学动物研究所标本室.拟毛股悠背蚱.新种 Euparatettix barbifemuraoides sp.nov.(图1~2)新种近似于Euparatettix gongshanensis Zheng,1992,主要区别为:1)头顶前缘不突出于复眼之前;2)沟前区侧隆线向后收缩;3)前胸背板侧缘在肩后略收缩;4)前足及中足股节下缘多长毛.新种与毛股悠背蚱Euparatettix barbifenura Zheng et Ou,2003,相似,但它的前胸背板后突超过后足股节的顶端及后翅超过前胸背板后突的顶端.正模♂,广西罗城(九万山),700m,2006-07-21,邓维安采;副模3♂♂;广西罗城(九万山),500m,2007-06-08.秦晶晶采.  相似文献   

8.
1936年,阿特姆思(Attems,C.G.)曾在我国福建省(福州)发现一种蟠马陆(Sphaerotheri ida),创立华马陆属(Chinosphaera),并以新种斑华马陆(C.maculosaAttems,C.G.)作为模式种。1938年,阿特姆思(Attems,C.)在越南南方相继发现一种光华马陆(C.levi Attems,C.)。此外,迄今未见有其他新种的报道。1978年,作者在广东省海南岛发现另一新种,现记述如下:  相似文献   

9.
记述采自云南省突眼蚱属 1 新种,即龙陵突眼蚱 Ergatettix longlingensis sp. nov.。该新种近似于拟齿股突眼蚱。主要区别为:1)触角着生于复眼下缘之下;2)前胸背板沟前区侧隆线略收缩;3)前胸背板后突到达后足股节顶端;4)后翅到达后突顶端;5)后足股节上侧中隆线具二叶状突;6)后足股节下侧外面非黑色;7)后足胫节暗褐色。文中附有中国突眼蚱属分种检索表。模式标本现保存于陕西师范大学动物研究所昆虫标本室。  相似文献   

10.
记述了采自陕西东部的叶蜂科Tenthredinidae叶蜂属TenthredoL.1新种:刺胸槌腹叶蜂TenthredodentipectaWeietNie,sp.nov.。该新种隶属于Tenthredo属的fortunii种团,并与该种团分布于印度尼西亚的T.corporaali(Forsius,1925)最为近似,区别为:新种体型较小,体长仅为10mm,中胸侧板光滑无刻点,单眼后区宽长比等于2,体褐色,腹部2~6节背板基部1/2黑褐色,触角第3节短于第4 5节之和等。  相似文献   

11.
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   

12.
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   

13.
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   

14.
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   

15.
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   

16.
17.
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   

18.
We investigated the uptake of inorganic elements (Be, Na, Mg, K, Ca, Sc, Mn, Co, Zn, Se, Rb, Sr, Y, Zr, Ce, Pm, Gd, and Hf) and the effect of Ca on their uptake in carrots (Daucus carota cv. U.S. harumakigosun) by the radioactive multitracer technique. The experimental results suggested that Na, Mg, K, and Rb competed for the functional groups outside the cells in roots with Ca but not for the transporter-binding sites on the plasma membrrane of the root cortex cells. In contrast, Y, Ce, Pm, and Gd competed with Ca for the transporters on the plasma membrane. The selectivity, which was defined as the value obtained by dividing the concentration ratio of an elemental pair, K/Na, Rb/Na, Be/Sr, and Mg/Sr, in the presence of 0.2 and 2 ppm Ca by that of the corresponding elemental pair in the absence of Ca in the solution was estimated. The selectivity of K and Rb in roots was increased in the presence of Ca. The selectivity of Be in roots was not affected, whereas the selectivity of Mg was increased by Ca. These observations suggest that the presence of Ca in the uptake solution enhances the selectivity in the uptake of metabolically important elements against unwanted elements.  相似文献   

19.
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   

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

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