中国皱茎飞虱属一新种（同翅目：飞虱科）

记述采自中国贵州省的飞虱科Ｄｅｌｐｈａｃｉｄａｅ皱茎飞虱属Ｏｐｉｃｏｎｓｉｖａ１新种：白边皱茎飞虱Ｏ．ａｌｂｉｍａｒｇｉｎａｔａ,ｓｐ．ｎｏｖ．。地贵州大学昆虫研究所。     

偏角飞虱属分类研究(同翅目,蜡蝉总科,飞虱科)

对偏角飞虱属Neobelocera Ding et Yang的种类进行了系统整理,共4种,即偏角飞虱Neobelocera asymmetrica Ding et Yang(云南)、浙江偏角飞虱N.zhejiangensis(Zhu)(浙江、安徽)、汉阴偏角飞虱N.hanyinensis Qn etYuan(陕西)、兰坪偏角飞虱N.lanpingensis Chen(云南).对属征进行了拟定,编制了种检索表,简述了已知种的分布、寄主.描记了采自湖南张家界国家森林公园的1新种,即侧刺偏角飞虱N.laterospina sp.nov.,提供了该新种及兰坪偏角飞虱N.lanpingensis Chen的特征图.研究标本及新种模式标本保存于贵州大学昆虫研究所.     

贵州害竹飞虱二新种记述(同翅目:飞虱科)

记述我国贵州省为害竹子的飞虱２新种,即基褐异脉飞虱Ｓｐｅｃｉｎｅｒｖｕｒｅｓ ｂａｓ９ｉｆｕｓｃａ Ｃｈｅｎ ｅｔ Ｌｉ,ｓｐ．ｎｏｖ和望谟竹飞虱Ｂａｍｂｕｓｉｐｔｈａｇａ ｗａｎｇｍｏｅｎｓｉｓ Ｃｈｅｎ ｅｔ Ｌｉ,ｓｐ．ｎｏｖ．。模式标本保存在贵州大学昆虫研究所。     

凹距族飞虱一新属一新种(同翅目:飞虱科)

本文记述飞虱科凹距族１新属,脊额飞虱属Ｃａｒｉｎｏｆｒｏｎｓ Ｃｈｅｎ ｅｔ Ｌｉ,ｇｅｎ．ｎｏｖ．,１新种,斑翅脊额飞虱Ｃ．ｍａｃｕｌａｔｉｐｅｎｎｉｓ Ｃｈｅｎ ｅｔ Ｌｉ,ｓｐ．ｎｏｖ．。模式标本保存于贵州大学昆虫研究所。     

中国短头飞虱属一新种记述(同翅目:飞虱科)

记述采自我国贵州省竹子上的短头飞虱属一新种,定名为齿突短头飞虱Ｅｐｅｕｒｙｓａ ｓｕｂｕｌａｔａ Ｃｈｅｎ ｅｔ Ｄｉｎｇ,ｓｐ．ｎｏｖ．,新种与台湾的Ｅ．ｍａｃｕｌａｔａ Ｙａｎｇ ｅｔ Ｙａｎｇ和Ｅ．ｓｉｎｏｂａｍｂｕｓａｅ Ｙａｎｇｅｔ Ｙａｎｇ近似,但可从以下综合特征来区别：１）前翅无翅斑;２）尾节腹中突尖齿状;３）阳茎基突结节为半圆形;以及阳基侧突的形状等。正模♂,贵州望谟,１９９７－     

灰飞虱类酵母型共生菌18S rDNA序列变异及系统发生

分离纯化了云南楚雄、宁夏银川、北京通县、上海七宝镇、四川西昌５个地区的灰飞虱体内类酵母型共生菌（Ｙｅａｓｔ－ｌｉｋｅ Ｓｙｍｂｉｏｎｔｓ,ＹＬＳ）,并对其１８ＳｒＤＡＮ的约６００ｂｐ的序列进行了测定。结合已有的序列,构建了不同宿主的ＹＬＳ的分子系统树。结果表明,灰飞虱的ＹＬＳ属于子囊菌亚门Ｐｙｒｅｎｏｍｙｃｅｔｅｓ纲,与此纲的Ｈ．ｃｈｒｙｓｏｓｐｅｒｍｕｓ亲缘关系最近。我国各地区及日本的灰飞虱体内     

中国西北地区飞虱科四新记录种

作者于1987和1988年对中国西北地区的飞虱种类进行了初步调查和采集,经整理鉴定,发现4种中国新记录种,均属于飞虱亚科(Delphacinae)、飞虱族(Delphacini),其中绿飞虱属Chloriona 2种,黎氏飞虱属Ribautodelphax和古北飞虱属Javesella各1种,而且黎氏飞虱属为我国首次记录。     

飞虱科中国一新记录属和新记录种

本文报道采自中国江苏地区的飞虱科Ｄｅｌｐｈａｃｉｄａｅ中国１新记录属和新记录种。标本保存在南京农业大学植物保护系。     

叉飞虱属(同翅目,飞虱科)分类研究

研究了叉飞虱属Garaga Anufriev的种类,共记述6个种,其中包括1新种G. trifurca Guo et Liang,sp.nov和中国大陆1新纪录种G.pallida Yang,补绘了已知种荻叉飞虱G.miscanthi Ding的特征图,并编制了叉飞虱属的分种检索表.     

古北飞虱属中国三新记录种

在整理鉴定东北地区飞虱种类时,发现古北飞虱属Jave sella Fennah,1963三个中国新记录种,其中古北飞虱J.pellucida已有文献报道在瑞典传播燕麦不孕矮缩病(Oat sterile dwarf),在欧洲、以色列传播玉米粗缩病(Maize rough dwarf),是一个值得注意的种类。 古北飞虱属全世界已知13种,均分布于古北区,其中有2种分布到新北区。本属种类体色多有变异,形态特征和雄外生殖器构造极为相似,很难确切地区分开来,故本文将其属种特征报道如下,以供鉴定时参考。     

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.     

Continued antigenic variation of highly pathogenic avian influenza A (H7N9) virus in laying hens in China, 2020–2021

Highlights
1. 13 strains of H7N9 viruses from laying hens in 2020 and 2021 were identified.
2. H7N9 viruses in China comprised at least 11 genotypes.
3. H7N9 viruses are high pathogenic in chickens, not in ducks.
4. The most H7N9 viruses cross-reacted poorly with H7-Re3 antiserum.
5. The H7-Re3 vaccine was unable to prevent H7N9 infection.