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1.
详细地记述了枝尺蛾亚科鞍形埃尺蛾Ectropiscrepuscularia (Denis&Schiffermller)、胡桃褶翅尺蛾Zamacrajuglansiaria (Graeser)及Phigaliaverecundaria (Leech)幼虫的形态特征 ,并提供了形态特征图。  相似文献   

2.
本文详细地记述了波尺蛾亚科Eupithecia abietaria debrunneata Staudinger, E. spadix Inoue 及Telenomeuta punctimarginaria (Leech) 幼虫的形态特征.  相似文献   

3.
本文记述中国尺蛾亚科3新记录属及3新记录种: 羚尺蛾Absala dorcada Swinhoe,双弓尺蛾Calleremites subornata Warren,巨尺蛾Pachista superans (Butler)。总结了每个属、种的形态特征;为羚尺蛾 Absala dorcada Swinhoe和巨尺蛾 Pachista superans (Butler) 指定了选模。  相似文献   

4.
韩红香  李静  薛大勇 《昆虫学报》2008,51(3):315-321
本文对赞青尺蛾属Xenozancla Warren, 1893进行研究,重新描述了属、种特征,总结了属的鉴别特征;描述了种内雄外生殖器的变化并附图,提供了成虫形态、外生殖器图。提出银尺蛾属Yinchie Yang, 1978和枣灰银尺蛾Y. zaohuiYang, 1978 分别是赞青尺蛾属Xenozancla 和赞青尺蛾X. vericolor Warren 的新异名,并为赞青尺蛾X. vericolor Warren指定了选模。同时,采用临近距离平均法(mean propinquity method)结合GIS技术绘制了赞青尺蛾属分布格局图,并据此分析了其分布格局和分布特点,结果表明:该属为亚洲东部特有属,呈西南 华北走向;它在中国华北、华中、西南地区至印度可能存在一个连续的分布区,其分布格局应属于东洋界的东南亚热带-亚热带型。  相似文献   

5.
详细地记述了枝尺蛾亚科Petelia rivulosa (Butler)、Exangerona prattiaria(Leech)及Culcula panterinaria(Bremer&Grey)老熟幼虫的形态特征,并提供了形态特征图。所有标本均保存在韩国江原大学校森林资源保护学科昆虫标本室。  相似文献   

6.
首次报道姬尺蛾亚科离顶尺蛾属Apostegania Prout,1932和离顶尺蛾A.crina(Swinhoe,1892)在中国分布,给出了形态描述和特征图。  相似文献   

7.
详细地记述了韩国红松球果害虫冷杉梢斑螟Dioryctria abietella、赤松梢斑螟D. sylvestrella (螟蛾科)和小花尺蛾Eupithecia abietaria debrunneata (尺蛾科)幼虫的形态特征,并提供了形态特征图。  相似文献   

8.
记述中国灰尺蛾亚科璃尺蛾属Krananda Moore1新记录种:尼泊尔璃尺蛾Krananda nepalensis Yazaki,1992。对其外部形态和雌雄外生殖器特征做了简要描述,同时列出其世界分布。研究标本材料均保存在东北林业大学林学院昆虫标本室。  相似文献   

9.
漠尺蛾属研究及一新种记述(鳞翅目,尺蛾科,灰尺蛾亚科)   总被引:3,自引:0,他引:3  
记述了漠尺蛾属Desertobia Viidalepp,1989的所有种类,共3种,包括1新种D.heloxylonia Xue,sp.nov.,提供了所有种类的成虫形态图.D.heloxylonia在新疆为害沙漠植物梭梭,详细描述了新种的外部形态特征、雌雄外生殖器特征、及鉴别特征,并描述了从卵至蛹的外部形态,附有形态及生态学照片.  相似文献   

10.
记述中国灰尺蛾亚科1新记录属:亚美尺蛾属Metacrocallis Beljaev,1997及1新记录种:亚美尺蛾Metacrocallis vernalis Beljaev,1997。绘制了雄性成虫及外生殖器特征图。研究标本保存于华南农业大学资环学院昆虫学系鳞翅目昆虫标本室。  相似文献   

11.
通过对6种藓类植物,即褶叶青藓(Brachythecium salebrosum(Web.et Mohr.)B.S.G.)、湿地匐灯藓(Plagiomnium acutum(Lindb.)Kop.)、侧枝匐灯藓(Plagiomnium maximoviczii(Lindb.)Kop.)、大凤尾藓(Fissidensnobilis Griff.)、大羽藓(Thuidium cymbifolium(Doz.et Molk.)B.S.G.)和大灰藓(Hypnum plumaeforme Wils.)嫩茎和老茎的石蜡切片和显微观察发现,同一藓类植株的嫩茎和老茎,茎结构稳定,不同种藓类植物茎横切面具有不同特征.植物体茎横切面形状、表层细胞的层数、细胞大小和细胞壁厚薄、皮层细胞大小和形状、中轴的有无以及比例等特征可以作为藓类植物的分科分类依据之一.  相似文献   

12.
Seed germination of an aurea mutant of tomato ( Lycopersicon esculentum Mill.) is promoted by continuous irradiation with red, far-red or long-wavelength far-red (758 nm) light as well as by cyclic irradiations (5 min red or 5 min far-red/25 min darkness). Far-red light applied immediately after each red does not change the germination behaviour. Seed germination of the isogenic wild-type, cv. UC-105, is promoted by continuous and cyclic red light while it is inhibited by continuous and cyclic far-red light and by continious 758 nm irradiation. Far-red irradiation reverses almost completely the promoting effect of red light. The promoting effect (in the aurea mutant) and the inhibitory effect (in the wild-type) of continuous far-red light do not show photon fluence rate dependency above 20 nmol m−2 s−1. It is concluded that phytochrome controls tomato seed germination throgh low energy responses in both the wild type and the au mutant. The promoting effect of continuous and cyclic far-red light in the au mutant can be attributed to a greater sensitivity to Pfr.  相似文献   

13.
目的 针对医疗机构的合理用药水平进行评价研究。方法 根据医疗机构合理用药的具体要求,构建医疗机构合理用药评价指标体系,采用基于模糊群决策的方法和多指标评价分析法构建医疗机构合理用药评价模型。结果 构建了基于模糊群决策的医疗机构合理用药评价模型,并通过实例分析证明了评价模型的可行性。结论 建立的基于模糊群决策的医疗机构合理用药评价模型能够对医疗机构的合理用药水平进行科学评价,为提高医疗机构合理用药水平奠定基础。  相似文献   

14.
A complex analysis of seasonal fluctuations of the mean group parameters of the system of regulation of lipid peroxidation has been performed in liver of Balb/c mice. Association of lipid characteristics and morphophysiological parameters is studied in the Balb/c mouse liver. An inter-connection is revealed between the liver index and the amount of lysoforms of phospholipids, the scale and character of the interconnection differing essentially depending on proportion of phos-phatidylcholine in mouse liver phospholipids.  相似文献   

15.
16.
龙胆科药用植物化学成分的研究现状   总被引:16,自引:0,他引:16  
龙胆科植物在我国的分布范围很广,且多数为药用植物,其多数种属的药用植物,至今其化学成分尚未被系统研究。综述了目前龙胆科药用植物的化学成分的研究现状及一般提取方法,对近年来发现的环烯醚萜及裂环烯醚萜类化合物进行了总结,为本科药用植物的更深入研究提供了参考。  相似文献   

17.
真菌类遗传学分析的知识结构教学   总被引:5,自引:2,他引:3       下载免费PDF全文
罗桂花 《遗传》2002,24(3):349-350
本文以认知结构理论为指导,讨论了真菌类遗传分析与高等动植物遗传分析的内在联系,认为利用这种内在联系进行教学可收到好的效果并说明了作者的具体教学过程。 Abstract:In the paper, the relationship between genetic analysis of Fungi and genetic analysis of high animal and plant was discussed.A good results were obtained when we adopted this method in the teaching.  相似文献   

18.
The review deals with study of enzymologic properties of a novel highly specific acetylcholinesterase substrate, N-(β-acetoxyethyl) piperidinium iodomethylate (“piperidylcholine”), and its 30 derivatives that were tested as effectors of cholinesterases of mammals and various species of Pacific squids. It was proven for the first time that responsible for specificity of action was structure of cyclic ammonium grouping of the alcohol part of molecule of the ester substrate. Analysis of specificity is performed based on enzymatic hydrolysis parameters—activity of catalytic center of cholinesterases and bimolecular constant of the reaction rate that are determined at optimal and low substrate concentrations. Among the specially synthesized group of thioester compounds there is revealed one more highly specific acetylcholinesterase substrate—N-(β-acetoxyethyl) piperidinium.  相似文献   

19.
This essay documents and examines the historical circumstances and events surrounding the discovery of the mode of transmission of yellow fever virus in Cuba. Close scrutiny of the articles published by Walter Reed and his colleagues in 1900, 1901 and 1902 reveals their limitations as historic documents. Fortunately, other sources of information from that period survive in letters and documents written by individuals involved in the quest for the mode of transmission. Examination and comparison of those sources of information unveiled a fascinating story which reveals that misunderstandings engendered by published articles accorded merit where it was not fully due.  相似文献   

20.
Summary Embryogenic tissues of sugi (Cryptomeria japonica) were induced on a modified Campbell and Durzan (CD) medium containing 1 μM 2,4-dichlorophenoxyacetic acid (2,4-D) and 600 mg l−1 glutamine, and subcultured in the medium of the same composition for over 1 yr. This resulted in a mixed culture of embryogenic and non-embryogenic cells. When embryogenic cells were isolated and cultured independently, their capacity to form embryogenic aggregates was lost. Thus, the non-embryogenic cells present within a mixed culture system were essential to the formation of embryogenic aggregates. When embryogenic tissues were isolated and cultured independently on a high glutamine-containing (2400 mg l−1) medium, dry weights and endogenous levels of glutamine increased, and the tissue could generate a large number of embryogenic aggregates. Amino acid analysis of embryogenic and non-embryogenic cells from the maintenance culture indicated a higher level of glutamine was present in the latter. The high endogenous level of glutamine in the non-embryogenic portion of mixed cell masses may be the supplier of glutamine for maintaining the embryogenic property of the tissues.  相似文献   

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