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《四川动物》2016,(5)
首次报道了虎纹毛园蛛Eriovixia huwena HanZhu,2010的雌性和浦那毛园蛛E.poonaensis(TikaderBal,1981)的雄性。标本保存于铜仁学院博物馆(MTU)。虎纹毛园蛛Eriovixia huwena HanZhu,2010(图1~6)鉴别特征:该种的体形及斑纹与尖腹毛园蛛E.pseudocentrodes(B9senbergStrand,1906)较类似,区别在于:1)该种的顶突呈楔状,后者的顶突略呈长方形;2)该种的纳精囊呈肾形,后者的纳精囊呈卵圆形;3)该种的交媾管在靠近纳精囊的一端膨大,后者交媾管不膨大。浦那毛园蛛Eriovixia poonaensis(TikaderBal,1981)(图7~12)鉴别特征:该种的外形及生殖器与拖尾毛园蛛E.laglaizei(Simon,1877)均有相似之处,区别在于:1)该种的腹部末端没有尾状突,后者腹部末端具尾状突;2)该种触肢器中突的左、右两叉约等宽,后者中突的右叉约为左叉的2倍宽;3)该种的纳精囊呈球形,后者的纳精囊呈卵圆形。 相似文献
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将编码乙型肝炎病毒表面抗原(HBsAg)的序列插入痘苗病毒基因组中。该序列受痘苗病毒早期启动子的控制。通过胸腺嘧啶核苷激酶丧失表达而筛选出的重组体稳定且保留其原有的感染性。用重组病毒感染的细胞能合成并分泌出HBsAg颗粒,该种颗粒在抗原性、多肽组成、浮密度、沉降速度和大小方面与乙型肝炎病毒感染的人的血清中的颗粒没有什么区别。用该重组病毒接种的家兔能迅速产生抗HBsAg抗体,这表明它有可能用作免疫人的活疫苗。 相似文献
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报道中国禾本科(Gramineae)小丽草属一新记录种——日本小丽草(Coelachne japonica Hack.),该种原记载特产于日本本州和九州,现在浙江省苍南县莒溪和泰顺县黄桥发现有该种分布。同时,还描述了该种形态特征与生境,提供活植物照片和凭证标本,重新修订浙江有分布的小丽草属植物。 相似文献
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豆科黄结属模式及其相关种名的考证 总被引:4,自引:0,他引:4
长期以来,Termopsis lanceolata R.Br.被误认为是黄华属的模式。根据有关文献考证和国际植物命名法规,作者为认T.;lanceoltata是一个不合法名,黄华属的合法模式应为Thermopsis Lupinoides(L.)Link.分布于东北亚,花具互生花的黄华长期被误定为T。lupinoides(L.)Link,应更正为Thermopsis fabacea(Pall)DC.。 相似文献
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Ophioglossum yongrenense Ching ex Z. R. He et W. M. Chu, sp. nov.Species nova aspectu inter O. kawamuram Tagawa et O. parvum Nishida et Kurita Japonicae, differt a priore frondibus pro parte laminis sterilibus praeditis (in illa frondibus omnino laminis sterilibus non praeditis), a posteriore frondibus pro parte laminis sterilibus non praeditis (in O. parvo Nishida et Kurita frondibus omino laminis sterilibus praeditis).…… 相似文献
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The distribution pattern of natural ramet population in the rhizomatous herb, Thermopsis lanceolata R.Br., at 5 scales (0.2 m, 0.4 m, 0.6 m, 0.8 m and 1.0 m) was investigated using grid samphng and spatial auto-correlation analysis (Moran' s I) in Maowusu sandland of Inner Mongolia of China. The result showed that the ramet population had non-random distribution pattern at four scales (0.2 m, 0.4 m, 0.6 m and 1.0 m). The most frequently observed pattern was contagious at the scale of 0.2 m. The genet had sympodial growth and nearly phalanx architecture. The branching angle of the rhizomes was from 10˚ to 30˚.The density of the ramet population was from 35 to 131 ramets·m-2. The mean height of ramets was between 11.0 cm and 25.9 cm. The biomass of the ramet population was 263.63 g·m-2 and 306.19 g·m-2 in the two plots, respectively. 33.71% and 44.97% of the biomass allocation to rhizomes were observed and the biomass allocation to roots was 29.91% and 29.95% and that to leaves was 25.12% and 36.35% in the two plots, respectively. The ratio of root to shoot was 0.44 in both plots while the ratio of below- to above- ground biomass was 2.12 and 3.59, respectively. 相似文献
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豆科黄华属植物种子表面特征的研究 总被引:2,自引:0,他引:2
在扫描电镜下观察了豆科黄华属Thermopsis 18种植物种子的表面纹饰,发现 T.alpina,T.bar-
bata,T.inflata,T.lupinoides,T. licentiana,T.smithiana和T.turkestanica的种子表面为粗网状,T
californica,T.divaricarpa,T. macrophylla,T.mollis的种子表面为细网状,T.gracilis,T.montana,T.
fabacea的种子表面为相对平滑型纹饰,T.alterniflora的种子表面为不规则条形,T.chinensis的种子表
面为粘膜状,T.rhombifolia的种子表面为条形及 T.viuosa的种子表面为碎屑状纹饰。结果表明黄华属的种子表面特征对属下类群的划分有一定意义,对澄清某些混乱的种有一定价值。 相似文献
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The new species Zagrammosoma dulanense Cao & Zhu, sp. n., from Qinghai Province, China, is described and illustrated. All type specimens were reared from the pupae of Micrurapteryx sophorivora Kuznetzov & Tristan (Lepidoptera: Gracillariidae), a leafmining moth attacking the plant Thermopsis lanceolata R. Br. (Fabaceae). A key to the three known Asian species of Zagrammosoma is provided. All specimens are deposited in the Insect Collection, the Institute of Zoology, Chinese Academy of Sciences, Beijing, China. 相似文献
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The dichloromethane extract of the wood of Carissa lanceolata R.Br. (Apocynaceae) afforded the eudesmanes carissone, dehydrocarissone and carindone. This is the first account of carissone being isolated from the wood of C. lanceolata, and of carindone being isolated from this Carissa species. Dehydrocarissone has not been isolated previously from any Carissa species. The antibacterial activity of these natural products were examined against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. All three compounds showed activity, with dehydrocarissone and carindone having a minimum inhibitory concentration less than 0.5 mg/ml against S. aureus and E. coli. 相似文献
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披针叶黄华(Thermopsis lanceolata)是我国西部地区早春重要野生蜜源植物,也是一种重要的固沙植物,然而对其繁殖特性的研究甚少.本文在系统调查披针叶黄华的访花昆虫基础上,确定其主要传粉昆虫种类、访花行为、传粉过程以及日活动规律,以期揭示主要访花者行为对其有性繁殖的影响.作者在内蒙古毛乌素沙地设置1个10m×10 m的样方,于2010和2011年在披针叶黄华盛花期,采用目测、拍照和摄像等方式对传粉昆虫进行观测,记录样方内主要访花昆虫种类、数量、访花行为及日活动规律.研究表明,大和切叶蜂(Megachile japonica)和戎拟孔蜂(Hoplitis princeps)是披针叶黄华的主要传粉者,但两种昆虫的访花频率存在显著差异;晴天时,大和切叶蜂在19:00-13:00和16:00-18:00出现两个活动高峰,而戎拟孔蜂只在11:30-16:30出现1个活动高峰,两种蜂的访花活动高峰期存在互补关系.大和切叶蜂访花同时具有盗蜜行为,但其盗蜜行为对披针叶黄华的结籽率没有显著影响.根据种群数量、访花频率综合判断,大和切叶蜂是披针叶黄华优势传粉蜂. 相似文献
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Very little is known about rhizobia that form nodules on Thermopsis spp. We report the isolation of a Mesorhizobium huakuii strain with a unique nodA gene that form nodules on Thermopsis lupinoides in Kamtchatka, Russia. The isolate did not form nodules on Thermopsis chinensis or Thermopsis caroliniana, which suggests it may be host specific. 相似文献
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Bingnian Jing Zhiqing Ma Juntao Feng Hongyan Liang Chen Li Xing Zhang 《Journal of Phytopathology》2012,160(4):181-186
To investigate their antiviral potential, extracts from 126 plants grown in the Qinling region of China belonging to 103 plant species of 36 families were evaluated for antiviral activity against Tobacco mosaic virus. The activity of each plant extract on infection and replication was determined by local lesion and leaf‐disc methods. Extracts from nine species [Lactuca tatarica (Linn.) C. A. Mey, Rubus flosculosus Focke, Thermopsis lanceolata R. Br, Cotinus coggygria Scop Pulsatilla chinensis (Bunge) Regel, Thlaspi rvense Linn, Rodgersia podophylla A. Gray, Achnatherum splendens (Trin.) Nevski and Rhodiola eurycarpa (Frod.) S. H. Fu] strongly inhibited both infection and viral replication. 相似文献
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为了探究贺兰山不同乔灌草的光合生理特性及其对自然环境的适应特性和机制,该研究采用Li-6400XT便携式光合仪测定了贺兰山10种乔灌草气体交换参数及自然环境因子并分析其相关性。结果表明:(1)净光合速率(Pn)日均值从大到小为披针叶黄华>灰榆>山杨>栒子>冰草>油松>小叶忍冬>小檗>青海云杉>苔草,从不同生活型来看表现为乔木>草本>灌木。(2)青海云杉、油松、灰榆、小檗、栒子和小叶忍冬的Pn日变化曲线为单峰型,山杨、披针叶黄华、苔草和冰草的Pn日变化曲线为双峰型,具有明显的光合“午休”现象,山杨和冰草主要为非气孔因素所致,披针叶黄华和苔草主要为气孔因素所致。(3)相比同种生活型的其他植物,青海云杉、油松、小叶忍冬和披针叶黄华具有较高的水分利用效率(WUE)日均值。(4)通径分析表明,乔木和灌木植物的主要决定因子为光照强度(PAR),主要限制因子为叶片温度(Tl)和饱和蒸汽压亏缺(VPD);草本植物的主要限制因子为气温(Ta)和Tl。研究发现,贺兰山东麓不同乔木、灌木、草本植物的光合特性日变化规律不尽相同,相比同种生活型的其他植物,青海云杉、油松、小叶忍冬和披针叶黄华具有较好的抗旱性,能适应较为干旱的气候环境。 相似文献