中国管巢蛛属三新种记述（蜘蛛目：管巢蛛科）

本文记述了我国管巢蛛属Clubiona 3新种,即双凹管巢蛛Clubiona duoconcava、拟喙管巢蛛Clubiona subrostrata和针管巢蛛Clubiona acifermis.     

中国管巢蛛属三新种及一雄性新发现(蜘蛛目:管巢蛛科)

记述中国管巢蛛科Clubionidae管巢蛛屑Clubiona 4种蜘蛛。其中脊管巢蛛Clubiona lirata sp.nov.,钳形管巢蛛Clubiona forcipa sp nov.和冀形管巢蛛Clubiona pterogona sp.nov．为3新种。另白马管巢蛛Clubiona baimaensis Song et zhu,199l的雄性为新发现。     

中国管巢蛛属两新种记述(蜘蛛目,管巢蛛科)

报道采自太行山区的管巢蛛科管巢蛛属2新种:白石山管巢蛛Clubiona baishishan sp. nov.和克氏管巢蛛Clubiona kropfi sp. nov. .模式标本保存在河北大学生命科学学院.文中测量单位为mm.白石山管巢蛛,新种Clubiona baishishan sp.nov.(图1)正模♂,副模2♀♀,河北省涞源县(39.3°N,114.7°E)白石山,1999年7月4日,海拔1 300～1 400 m,张锋、张俊霞采;副模7♂♂,3♀♀,河北省平山县驼梁,1999年6月5日,海拔1 500～1 700 m,张锋采.新种与沟岸管巢蛛Clubiona riparia L. Koch, 1866相似,但有以下3点区别:1)本种雄蛛触肢的胫节突复杂,而后者较为简单;2)本种外雌器呈"门"字形,而后者不同于此;3)本种螯肢的后齿堤2齿,而后者为4齿.词源学:新种的种名依模式标本的产地拟定.克氏管巢蛛,新种Clubiona kropfi sp. nov.(图2)正模♀,副模1♀,河北省涞源县白石山,1999年7月16日,海拔1 300 m,张锋采.新种近似巴氏管巢蛛Clubiona bakurovi Mikhailov,1990,但本种的外雌器后缘硬化部分超越生殖沟向后延伸,后中部形成一舌状的突起.词源学:新种的种名以瑞士蛛形学家克罗普夫博士(Dr. C. Kropf)的姓氏拟定,以感谢他对此研究工作的支持.     

西藏和四川省管巢蛛属三新种记述(蜘蛛目,管巢蛛科)

在进行中国管巢蛛科系统学研究时,发现了产自西藏和四川的管巢蛛属3新种:波密管巢蛛Clubiona bomiensis sp.nov.,心形管巢蛛Clubiona cordata sp.nov.和指管巢蛛 Clubiona dactyla sp.nov,.这3新种均属于管巢蛛属的拟管巢蛛种组(group paraclubiona).所有标本均保存在河北大学生命科学学院.文中测量单位为mm.     

台湾管巢蛛和樟木管巢蛛的雄性新发现(蜘蛛目,管巢蛛科)

作者在进行中国管巢蛛属系统学研究时,发现了管巢蛛科管巢蛛属2雄性新发现:台湾管巢蛛Clubiona taiwanica Ono,1994和樟木管巢蛛Clubiona zhangmuensis Hu et Li,1987.这两种以前描述时均只有雌性,在此予以补充描述.所有标本保存在河北大学生命科学学院.文中测量单位为mm.     

我国管巢蛛属两种蜘蛛的修订（蜘蛛目：管巢蛛科）

本文对我国管巢蛛属Clubiona两种蜘蛛进行了修订,列出了新的同物界名,纠正了配对错误,并附有外生殖器结构图。还说明了每个种的地理分布。     

棕管巢蛛的生物学特性观察

棕管巢蛛Clubiona japonicola 在山东日照沿海地区1年发生1代,以幼蛛在树皮下、针叶基部、杂草丛中越冬.翌年4月上旬出蛰,4月下旬发育为成蛛.5月上旬开始交配产卵,卵期7.6 d, 幼蛛期321.4 d,成蛛期71.2 d.雌雄性比为3∶2.成蛛日均食松大蚜 Cinara pinea 5.8头.是多种害虫的重要天敌.     

中国管巢蛛属一新种及一新纪录种记述(蜘蛛目:管巢蛛科)

记述了产自中国海南和云南的2种管巢蛛:双羽管巢蛛,新种Clubiona bipinnata sp.nov.和拉玛管巢蛛Clubiona rama DankittipakulSingtripop,2008,新纪录种。提供了2个物种的外生殖器手绘点线图、显微照片及采集记录图。标本保存于贵州师范学院动物标本室。     

中国管巢蛛属六亲新种：（蜘蛛目：管巢蛛科）

本文记述管巢蛛属Ｃｌｕｂｉｏｎａ６新种,即环管巢蛛Ｃｌｕｂｉｏｎａ ｃｉｒｃｕｌａｔａ ｓｐ．ｎｏｖ,以齿管巢蛛Ｃｈｕｂｉｏｎａ ｄｉｄｅｎｔａｔａ ｓｐ．ｎｏｖ,丝歧管巢蛛Ｃｌｕｂｉｏｎａ ｆｉｌｏｒａｍｕｌａ ｓｐ．ｎｏｖ,异管管巢蛛Ｃｌｕｂｉｏｎａ ｈｅｔｅｒｏｄｕｃｔａ ｓｐ．ｎｏｖ．,曲管巢蛛Ｃｌｕｂｉｏｎａ ｔｏｒｔｕｏｓａ ｓｐ．ｎｏｖ,列管巢蛛Ｃｌｕｂｉｏｎａ ｔｒａｎｓｖｅｒｓａ     

中国管巢蛛属六新种(蜘蛛目:管巢蛛科)

本文记述管巢蛛属Ｃｌｕｂｉｏｎａ６新种,即环管巢蛛Ｃｌｕｂｉｏｎａｃｉｒｃｕｌａｔａｓｐ．ｎｏｖ．,双齿管巢蛛Ｃｌｕｂｉｏｎａｄｉｄｅｎｔａｔａｓｐ．ｎｏｖ．,丝歧管巢蛛Ｃｌｕｂｉｏｎａｆｉｌｏｒａｍｕｌａｓｐ．ｎｏｖ．,异管管巢蛛Ｃｌｕｂｉｏｎａｈｅｔｅｒｏｄｕｃｔａｓｐ．ｎｏｖ．,曲管巢蛛Ｃｌｕｂｉｏｎａｔｏｒｔｕｏｓａｓｐ．ｎｏｖ．,横列管巢蛛Ｃｌｕｂｉｏｎａｔｒａｎｓｖｅｒｓａｓｐ．ｎｏｖ．。     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.     

Perinatal Vertical Transmission of Chikungunya Virus in Ruili,a Town on the Border between China and Myanmar

正Dear Editor,Chikungunya virus (CHIKV), an arbovirus in the family of Togaviridae, genus Alphavirus, is transmitted by the A.aegyptii or A. albopictus mosquito, and causes disease in humans characterized by fever, rash, and arthralgia (Silva and Dermody 2017; Suhrbier 2019). It was first reported in 1953 in Tanzania, and caused only a few outbreaks and sporadic cases in Africa and Asia in last century. However, in the epidemic in 2004, CHIKV acquired mutations that conferred enhanced transmission by the A. albopictus mosquito(Schuffenecker et al. 2006). Since then, it has successively caused outbreaks in Africa, the Indian Ocean, South East Asia, the South America, and Europe (Zeller et al. 2016).