中国倍叉(责)属三新种(责翅目:叉(责)科)

记述我国倍叉(责)属Amphinemura 3新种: 尖突倍叉(责)Amphinemura acutata sp. nov.、双突倍叉(责)Amphinemura didyma sp. nov.、单突倍叉 (责)Amphinemura singularis sp. nov..     

新疆倍叉(虫责)属一新种记述(襀翅目:叉(虫责)科)

本文记述了采自新疆喀纳斯的倍叉[虫责]属Amphinemura 1新种：环齿倍叉[虫责]Amphinemura tricintusidens Wang＆Zhu,sp．nov。根据肛侧突中叶端部有3或4个环绕的小齿和肛上突背骨片端部形成的圆形腔可将该新种与其它种类相区别。正模♂,新疆喀纳斯,2005-Ⅷ—01,朱江艳等采。副模1♂,采集资料同正模。新种的模式标本保存在扬州大学昆虫标本馆。     

贵州新虫责属二新种记述1(襀翅目:虫责科:虫责亚科)

记述采自中国贵州的新虫责属 2新种 ,即双瘤新虫责 Neoperla bituberculata,sp.nov.和曲囊新虫责 N eoperla flexiscrotata,sp.nov.。模式标本存扬州大学植物保护系昆虫标本室 ( YU)     

贵州钩(虫责)属一新种记述((襀)翅目:(虫责)科)

记述采自贵州宽阔水保护区的钩(虫责)属l新种:巨刺钩(虫责)Kamimuria grandispinata Du ＆Sun,sp.nov.,该新种的阳茎特征与长刺钩虫责K.longispina Wu相似,但长刺钩(虫责)阳茎囊背面近端部有1膜质突起,上面生有粒状微刺,而新种阳茎囊背面近端部是1个近似三角形的刺斑,无突起...     

中国瘤(虫责)属一新种记述(襀翅目:(虫责)科)

记述采自中国陕西佛龙的瘤(虫责)属Tyloperla 1新种:双凹瘤(虫责)Tyloperla bihypodroma Du, sp. nov.,该种与尖突瘤(虫责)Tyloperla attenuata很相近,但前者第8背板近后缘形成1个隆起脊、其中部有1凹陷,后者则在背板中部形成1近圆形的隆起、其上的锥状感觉器比前者多;前者第9背板中央微凹、其前缘骨化明显、极小的锥状感觉器稀少,后者中部有1丛明显的锥状感觉器;前者翅透明,后者翅微烟褐色.新种的模式标本保存在扬州大学昆虫标本馆.     

中国钮虫责属种类记述(襀翅目:鰿科:钮虫责亚科)

记述中国钮虫责属 Acroneuria Pictet昆虫 4种 ,其中包括 2新种 :莫氏钮虫责Acroneuria morsei,sp.nov.和多锥钮虫责 Acroneuria multiconata,sp.nov.。模式标本存扬州大学植物保护系昆虫标本室 ( YU)和西北农林科技大学昆虫博物馆 ( NW-STUAF)。     

四川诺(虫责)属(襀翅目,卷(虫责)科)一新种记述

记述采自四川1新种,李氏诺Rhopalopsole lii sp.nov.,并讨论了其与近似种的区别.模式标本保存在中国农业大学标本馆.     

中国介(虫脩)属一新种(虫脩)目,(虫脩)科)

描记了中国(虫脩)目(虫脩)科介(虫脩)属Interphasma Chen et He 1新种:雷公山介(虫脩)Interphasma leigongshanense sp.nov..模式标本保存在贵州大学昆虫研究所.     

云南省(虫齿)目二新种和灰背蛇(虫齿)的记述((虫齿)目:厚(虫齿)科、叉(虫齿)科、围(虫齿)科)

本文记述了云南省(虫齿)目二新种,Tapinella bannana sp.n.和Peripsocus plurimaculatus sp.n.及一新种记录种Ophiodopelma semicets Lee and Thornton,其雄虫为首次记载。     

湖南鳞(虫兆)属种类记述(弹尾目,鳞(虫兆)科)

记述采自湖南省的弹尾目Collembola鳞(虫兆)科Tomoceridae鳞(虫兆)属Tomocerus 3种,包括2新种:六斑鳞(虫兆)Tomocerus(Tomocerus)hexipunctatus sp. nov.和多毛鳞(虫兆)Tomocerus(Tomocerus)multisetus sp. nov.和1个已知种T.(T.)kinoshitai Yosii,1954.     

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.     

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     

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.     

鸡传染性法氏囊病病毒研究进展

传染性法氏囊病(Infection bursal disease, IBD)是由鸡传染性法氏囊病毒(Infectious bursal disease virus, IBDV)引起的鸡和火鸡的一种高度接触性传染病,给世界各国的禽养殖业带来了巨大损失.自IBDV发现至今新的变异株不断出现,分子结构的改变导致病毒致病力的改变及宿主对疫苗应答的改变,使得传统的疫苗已不能控制其流行,因此各国学者对其基因组结构和功能进行了广泛深入的研究,并积极研制新型有效的疫苗以达到防治的目的.     

Development of a Novel Reverse Transcription Loop-Mediated Isothermal Amplification Method for Rapid Detection of SARS-CoV-2

In conclusion, the novel visual RT-LAMP assay is a simple, rapid, and sensitive approach for detection of SARS-CoV-2, and it is ready for application in primary care and community hospitals or health care centers, and even patients' own houses in response to the current SARS-CoV-2 epidemic because the assay does not require sophisticated equipment and skilled personnel. Furthermore, it is also ready to be used in fields for screening samples from wild animals and environments to facilitate the identification of potential intermediate hosts that mediate the cross-species transmission of SARS-CoV-2 from bats to humans.     

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).