大膜叶蜂属分类研究（膜翅目：叶蜂亚目：蕨叶蜂科）

记述中国新记录属大膜叶蜂属1新种：紫蓝大膜叶蜂Bornea purpurata,sp．nov．。该属分布于亚洲东南部,仅知模式种1种。新种与模式种的主要区别是：头胸部蓝紫色,腹部2-5节黄色,触角全部黑色,足大部黑色,爪齿很长大。编制了分种检索表,绘制了新种形态特征图。文中还简要讨论了大膜叶蜂属与近缘属的鉴别特征。模式标本保存于中国科学院动物研究所。     

麦叶蜂属七新记述（膜翅目：叶蜂亚目：叶蜂科）

本文记述中国麦叶蜂属７新种：齿瓣麦叶蜂Ｄｏｌｅｒｕｓ ｄｅｎｔｉｐｅｎｉｓ ｓｐ．ｎｏｖ．,李氏麦叶蜂Ｄ．ｌｉｉ ｓｐ．ｎｏｖ．,长尾麦叶蜂Ｄ．ｌｏｎｇｉｃｅｒｃｕｓ ｓｐ．ｎｏｖ．,长海麦叶蜂Ｄ．ｍｉｒａｎｄｕｓ ｓｐ．ｎｉｖ．,奇鞘麦叶蜂Ｄ．ｍｉｒａｎｄｕｓ ｓｐ．ｎｏｖ．,上海麦叶蜂Ｄ．ｓｈａｎｇｈａｉｅｎｓｉｓｓｐ．ｎｏｖ．,毛翅麦叶蜂Ｄ．ｔｈａｕｎｍａｔｕｓ ｓｐ．ｍｏｖ,西藏麦叶蜂Ｄ．     

中国叶蜂亚科二新种(膜翅目,叶蜂科)

记述中国叶蜂亚科2新种:孙氏金蓝叶蜂Metallopeus sunae Wei et Zhang,sp.nov.和光额横带叶蜂 Tenthredo nitidifrontalia Wei et Zhang,sp.nov.前者隶属于金蓝叶蜂属Metallopeus Malaise,1934,后者隶属于叶蜂属Tenthredo Linnaeus,1758的横带叶蜂种团T.pompilina group.金蓝叶蜂属的分布纪录向北延伸约10个纬度.     

中国宽腹叶蜂属五种新种（膜翅目：叶蜂亚目：叶蜂科）

本文记述中国宽腹叶蜂属５新种：长腹宽腹叶腹Ｍ．ｄｏｌｉｃｈｏｇａｓｔｅｒ Ｗｅｉｅｔ Ｍａ,ｓｐ．ｎｏｖ．,缨鞘宽腹叶蜂Ｍ．ｐｉｌｏｔｈｅｃａ,ｓｐ．ｎｏｖ．,童氏宽腹叶蜂Ｍ．ｔｏｎｇｉ Ｗｅｉ ｅｔ Ｍａ,ｓｐ．ｎｏｖ．,赵氏宽腹叶蜂Ｍ．ｚｈａｏｃａｅ Ｗｅｉ,ｓｐ．ｎｏｖ．,郑氏宽腹叶蜂Ｍ．ｚｈｅｎｇｉ Ｗｅｉ,ｓｐ．ｍｏｖ．。模式标本均保存于中南林学院昆虫标本室。文中还将尖唇宽腹叶蜂黄柄亚种     

潜叶蜂族研究（膜翅目：叶蜂科）

本文记述中国潜叶蜂Ｆｅｎｕｓｉｎｉ６属８种，其中包括２新属６新种及４新组合种：大眼闻潜叶蜂Ｚｈｅｎｇｉｎａ ｍｅｇｏｍｍａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ。，吕氏华潜叶蜂Ｓｉｎｏｆｅｎｕｓａ ｌｕｉ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．，沟缝脊潜叶蜂Ｐａｒｎａ ｄｉｓｔｉｎｃｔａ ｓｐ．ｎｏｖ．，黄首原潜叶蜂Ｐｒｏｆｅｎｕｓａ ｘａｎｔｈｏｃｅｐｈａｌａ ｓｐ．ｎｏｖ．，Ｑｉ树雅潜叶蜂Ａｎａｆｅｎｕｓａ ａｃ     

中国蕨叶蜂亚科三新种(膜翅目,叶蜂科)

记述中国蕨叶蜂亚科3新种:美斑长片叶蜂Neothrinax formosula Wei et Xiao,sp.nov,.糙眶侧齿叶蜂Neostromboceros punctiorbita Wei et Xiao,sp.nov和.周氏侧齿叶蜂Neostromboceros zhousyi Wei et Liu,sp.nov。.     

中国广西平背叶蜂亚科三新种(膜翅目,叶蜂科)

记述平背叶蜂亚科3新种:薛氏片爪叶蜂Darjilingia xueae Wei et Liu,sp.nov.,黑痣狭腹叶蜂Athlophorusnigrostigmata W ei,sp.nov.,斑背蔡氏叶蜂Caiina maculoterga W ei et Niu,sp.nov.。     

中脉叶蜂族系统分类研究(膜翅目:叶蜂科)

本文系统厘订了中国中脉叶蜂族叶蜂,记述了１个新记录属种和２个新种：斑角狭脉叶蜂Ｍｅｇａｄｉｎｅｕｒａ ｇｒａｎｄｉｓ Ａｎｄｒｅ中国新纪录属种,黑背樟叶蜂Ｍｏｒｉｃｅｌｌａ ｎｉｇｒｉｔａ ｓｐ．ｎｏｖ．新种,中华中脉叶蜂Ｍｅｓｏｎｅｕｒａ ｓｉｎｉｃａ ｓｐ．ｎｏｖ．新种。恢复樟叶蜂属Ｍｏｒｉｃｅｌｌａ Ｒｏｈｗｅｒ的有效属地位,该属与近缘的Ｍｅｓｏｎｅｕｒａ属在上颚、触角、复眼、淡膜区、爪、翅     

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.