中国新(帻)属(襀翅目,(帻)科)一新种记述

记述采自台湾1新种,赛氏新(赜)Neoperla siveci sp.nov.,并讨论了其与近似种的区别.模式标本保存分别在中国农业大学昆虫博物馆和河南科技学院标本馆.赛氏新(帻),新种Neoperla siveci sp.nov.(图1～4)新种腹部第7背板隆突和第8背板的骨化突特征与邵氏新(赜)Neoperla sauteri Klapalek,1912非常近似.二者的主要区别在于:新种雄虫阳茎囊非常短,约为阳茎管的1/5,阳茎囊腹面刺较少,顶端略直;而邵氏新(赜)雄虫阳茎囊长度略短于阳茎管,阳茎管囊腹面刺较多,端部呈钩状.正模♂,台湾屏东石门村,2010-11-08,杨定采.副模1 ♂,同正模.词源:新种种名源自襀翅学家Ignac Sivce博士的姓氏.     

云南鲤科鱼类一新属新种(鲤形目:鲤科:(鱼丹)亚科)

本文记述采自云南澜沧江水系的鲤科(鱼丹)亚科鱼类一新属新种。新属裸(鱼丹)属Gymnodanio gen.nov.在侧线、臀鳍条数目等特征上近似于低线(?)属Barilius,但以其除侧线鳞外体裸露无鳞,具不完全之腹棱等而与其及(鱼丹)亚科现有各属相区别。新种命名为条纹裸(鱼丹)G.strigatus sp.nov.。     

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..     

西藏鳞(虫兆)亚属二新种记述(弹尾目,鳞(虫兆)科)

记述采自西藏地区的弹尾目Collembola鳞(虫兆)科Tomoceridae鳞(虫兆)亚属Tomocerus(Tomocerus)2新种:黑带鳞(虫兆)Tomocerus(Tomocerus)nigrofasciatus sp.nov.(西藏:洛扎生格)和背崩鳞(虫兆)Tomocerus(Tomocerus)baibungensis sp.nov.(西藏:墨脱背崩),给出鉴别特征图以及在西藏地区的种检索表.新种模式标本保存在中国科学院动物研究所.     

威(虫兆)属一新种及阔(虫兆)属在我国的发现(昆虫纲:弹尾目)

描述了采自上海地区的威(虫兆)属一新种Willemia shanghaiensis,并报道中国新纪录种厚角阔(虫兆)Oncopodura crassicornis Shoebotham,1911.新种模式标本存放于中国科学院上海昆虫研究所标本馆.     

越南新棘(螩)族一新纪录属陈(螩)属及一新种记述((螩)目,(螩)科,长角棒(螩)亚科)

记述越南新棘(螩)族1新纪录属,陈(螩)属 Cheniphasma Ho,2012,并记述1新种,粒突陈(螩) Cheniphasma granulatum sp.nov..新种模式标本保存于中国科学院动物研究所.     

中国海南省短角枝(螩)属分类研究((螩)目,(螩)科,克(螩)亚科)

对海南省短角枝(螩)属Ramulus Saussure进行分类整理,共计9种,含l新种,吊罗山短角枝(螩)Ramulus diaoluoshanse Ho,sp.nov.;及1新组合,尖峰岭短角枝(螩)Ramulus jianfenglingense(Chen et He,2008)comb.nov.,新种模式标本存放于广州中山大学生物博物馆.     

中国广西金线(鱼巴)属盲鱼一新种及其生境(鲤科，(鱼巴)亚科)

2002年8月28日在广西田林县平山乡一洞穴地下河中采到1尾鱼类标本,经鉴定为鲤科(鱼巴)亚科金线属(鱼巴)鱼类1新种,定名为田林金线(鱼巴)Sinocyclocheilus tianlinensis sp. nov..鉴别特征:眼退化;吻突出,呈鸭嘴状;头后部急剧隆起,形成一向前不分叉的额骨;新鲜标本体半透明.新种与白斑金线(鱼巴)S.albeoguttatus、鸭嘴金线(鱼巴)S.anatirostris、无眼金线(鱼巴)S. anophthalmus和透明金线(鱼巴)S.hyalinus较相近,而与其他已知种不同.模式标本保存中国科学院动物研究所.     

中国(虫穴)螨科二新种记述(蜱螨亚纲:中气门亚目)

记述(虫穴)螨科二新种:花副(虫穴)螨Parazercon floralis sp.nov.和拟重卡(虫穴)螨Caurozercon duplexoideus sp.nov.,副(虫穴)螨属和卡(虫穴)螨属为中国首次发现.     

越南华枝(虫骨)属一新种((虫骨)目:异(虫骨)科)

记述了华枝(虫骨)属Sinophasma Gnther一新种越北华枝(虫骨)Sinophasma vietnamense新种.描述了新种的外部形态特征,并与近似种比较区别,附主要特征图.     

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.     

Enterovirus 71 3C proteolytically processes the histone H3 N-terminal tail during infection

Highlights
1. The N-terminal tail of histone H3 is specifically cleaved during EV71 infection.
2. Viral protease 3C is identified as a protease responsible for proteolytically processing the N-terminal H3 tail.
3. Our finding reveals a new epigenetic regulatory mechanism for Enterovirus 71 in virus-host interactions.     

Detection of EBV and HHV6 in the Brain Tissue of Patients with Rasmussen’s Encephalitis

Rasmussen’s encephalitis (RE) is a rare pediatric neurological disorder, and the exact etiology is not clear. Viral infection may be involved in the pathogenesis of RE, but conflicting results have reported. In this study, we evaluated the expression of both Epstein-Barr virus (EBV) and human herpes virus (HHV) 6 antigens in brain sections from 30 patients with RE and 16 control individuals by immunohistochemistry. In the RE group, EBV and HHV6 antigens were detected in 56.7% (17/30) and 50% (15/30) of individuals, respectively. In contrast, no detectable EBV and HHV6 antigen expression was found in brain tissues of the control group. The co-expression of EBV and HHV6 was detected in 20.0% (6/30) of individuals. In particular, a 4-year-old boy had a typical clinical course, including a medical history of viral encephalitis, intractable epilepsy, and hemispheric atrophy. The co-expression of EBV and HHV6 was detected in neurons and astrocytes in the brain tissue, accompanied by a high frequency of CD8⁺ T cells. Our results suggest that EBV and HHV6 infection and the activation of CD8⁺ T cells are involved in the pathogenesis of RE.     

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).     

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.