陕西省环尾春蜓属一新种

记述采自陕西省汉中市郊的环尾春蜓属1新种汉中环尾春蜓Lamelligomphus hanzhongensis,     

云南亚春蜓属一新种(蜻蜓目,春蜓科)

记述亚春蜓属1新种,贡山亚春蜓Asiagomphus gongshanensis sp.nov.,模式标本存放云南大理学院生命科学与化学学院.     

中国云南奈春蜓属一新种(蜻蜓目,春蜓科)

记述奈春蜓属1新种,二齿奈春蜓Nychogomphus bidentatus sp.nov.,模式标本存放在云南大理学院生命科学与化学学院。     

中国小叶春蜓属研究(蜻蜓目,春蜓科)

记述了小叶春蜓属中国的4种及1亚种,描述了其中1新种.间纹小叶春蜓,新种Gomphidia interruptistria sp.nov.(图1～11)正模♂,云南省勐腊县瑶区,海拔1 000 m,2004-07-28,查岭生采.模式标本存放于陕西师范大学动物研究所.文中附有该属在我国的种检索表.新种与G.k.kruegeri及G.k.fukienensis相似,其主要区别见表1.词源:新种的背条纹和领条纹,以及背条纹和肩前上点均完全间断,故取名间纹小叶春蜓.     

中国云南省奇春蜓属一新种(蜻蜓目:春蜓科)

记述中国新记录属——奇春蜓属Perissogomphus Laidlaw,1922和1新种——朝氏奇春蜓P.asahinai,sp.nov.,模式标本保存在大理学院。     

汉森安春蜓(Amphigomphus hansoni Chao)的雌性记述(蜻蜓目:春蜓科)

首次记述汉森安春蜓（Amphigomphus hansoni Chao,1954）的雌性,标本存放于漳州教育学院生物标本室。     

云南钩尾春蜓亚科二新种(蜻蜓目:春蜓科)

记述采白云南省春蜒科2新种：卢氏奈春蜒Nychogomphus lui sp．nov．和文山刀春蜒Scalmogomphus wenshanensis,sp．nov．。模式标本保存于浙江自然博物馆昆虫标本室。     

《中国春蜓分类》

<正> 本书由福建农学院生物防治研究所赵修复教授著,福建科学技术出版社1991年2月出版。 本书是我国第一本最完备的春蜓分类专著。该书分总论和各论两大部分。总论分4章,论述中国春蜓分类研究简史、形态特征、中国春蜓地理分布和中国春蜓科分类系统。形态特征一章,除列举重要分类特征外,还选择双峰弯尾春蜓作外部形态详细研究,使本科分类建立在坚实的形态学基础上。各论分4章,记述本科的4个亚科、33属、145种,内含在本书中发表的2新属、11新     

蜓类一新属——莎车蜓（Shachella）

文章描述了塔里木西南缘上石炭威宁阶下部（莫斯科阶下部）蜓类一新属莎车蜓（Ｓｈａｃｈｅｌｌａ）,此属与Ｐｒｏｆｕｓｕｌｉｎｅｌｌａ特征相似,但外圈出现蜂巢状构造（微孔构造）,但外圈出现蜂巢状构造（微孔构造）,这种构造与希瓦格蜓科之典型蜂巢层无本质之区别,可称为细蜂巢层。     

Entwicklungsgeschichte und Ultrastruktur von Pollenkitt und Exine bei nahe verwandten entomophilen und anemophilen Angiospermensippen derAlismataceae,Liliaceae, Juncaceae,Cyperaceae, Poaceae undAraceae

Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout.

     

Identification and Characterization of the First Equine Parainfluenza Virus 5

正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various     

Pathogenic Characterization and Full Length Genome Sequence of a Reassortant Infectious Bursal Disease Virus Newly Isolated in Pakistan

<正>Dear Editor,Infectious bursal disease (IBD) is one of the most important diseases of the poultry. The IBD virus (IBDV), a nonenveloped virus belonging to the Birnaviridae family with a genome consisting of two segments of double-stranded RNA (segments A and B), targets B lymphocytes of bursa of Fabricious leading to immunosuppression. In Pakistan,poultry farming is the second biggest industry and IBD is the second biggest disease threating the poultry sector.However, there is limited genome information of IBDV     

Similar aerosol emission rates and viral loads in upper respiratory tracts for COVID-19 patients with Delta and Omicron variant infection

Highlights
1 Aerosol emission rates of Delta or Omicron patients were similar.
2 Viral loads in upper respiratory tract of Alpha, Delta and Omicron patients were similar.
3 Viral loads in upper respiratory tract of vaccinated or unvaccinated Delta patients had no difference.     

Recombinant human interferon-α1b inhibits SARS-CoV-2 better than interferon-α2b in vitro

Highlights
1) A comprehensive evaluation method for anti-SARS-CoV-2 drugs was established based on RT-qPCR, TCID₅₀ method, and immunofluorescence.
2) A significant antiviral effect of rHuIFN-α1b was shown with EC₅₀=0.12 IU/mL in Vero cells and EC₅₀=0.52 IU/mL in Calu-3 cells, which was better than rHuIFN-α2b (EC₅₀=0.25 IU/mL in Vero cells and EC₅₀=2.48 IU/mL in Calu-3 cells).
3) rHuIFN-α1b has a good potential in the application of anti-COVID-19 therapy.