中国湖南省刺齿属一新种(弹尾目:长角科)

本文描述了中国湖南省刺齿虫兆属一新种：多毛刺齿虫兆Ｈｏｍｉｄｉａｐｏｌｙｓｅｔａ,ｓｐ．ｎｏｖ．（图１～１３）。该种与叶毛刺齿虫兆Ｈ．ｌａｔｉｆｏｌｉａＣｈｅｎ＆Ｌｉ,１９９８相似,下唇基节（ｍｅｎｔｕｍ）均具叶状刚毛;但以头和身体各部分具较多的刚毛可与后者相区别。正模♀,副模１♀,湖南张家寨天子山,１９９５－ＶＩＩ－７,存南京大学生物系。     

中国鳞属Tomocerus一新种(弹尾目:鳞科)

本文记述了中国鳞属1新种:王朗鳞Tomocerus(Tomocerina)wanglangensis,sp.nov.。模式标本保存于西南科技大学生命科学与工程学院昆虫标本室。王朗鳞虫兆Tomocerus(Tomocerina)wanglangensis,新种(图1~9)本新种和白鳞虫兆T.(Tomocerina)calceusLiuetal.1999非常相似,但新种爪内缘齿为1,1,1;弹器齿节刺简单、不具褶,刺序为2/1,Ⅰ,1,Ⅰ;弹器端节间齿数为2。正模♀,四川省平武县王朗,1800m,06-Ⅹ-2002,刘永琴;副模:3♀♀,5♂♂,同正模。     

中国江西省刺齿属一新种(弹尾目: 长角科)

本文描述了中国刺齿属１新种—李氏刺齿（Ｈｏｍｉｄｉａｌｅｅｉ，ｓｐ．ｎｏｖ．），它的体色斑纹与Ｈ．ＳａｕｔｅｒｉＢｒｎｅｒ，１９０９极为相似，但上唇乳突，下唇刚毛Ｅ，腹管毛序以及弹器基上刺的数量可区分两者     

中国安徽省刺齿珧属一新种(弹尾目:长珧科)(英文)

本文记述弹尾目刺齿属一新种,即安徽刺齿Homidiaanhuiensisspnov．。该种有些特征与H.speciosaSzeptycki1973相似,但第4腹节毛序,上唇无乳突及下唇三角区刚毛E纤毛状可与后者区分。     

中国江西省刺齿Yao属一新种：弹尾目：长角Yao秤

本文描了中国刺齿属１新种－李氏刺齿Ｙａｏ，它的体色斑纹与Ｈ．ＳａｕｔｅｒｉＢｏｒｎｅｒ，１９０９极为相似，但上唇乳突，下唇刚毛Ｅ，腹管毛序以及弹器基上刺的数量可区分两者。     

中国湖南省刺齿Yao属一新种：弹尾目：长角Yao科

本文描述了中国湖南省刺齿Ｙａｏ属一新种：多毛刺齿ＹａｏＨｏｍｉｄｉａ ｐｏｌｙｓｅｔａ,ｓｐ．ｎｏｖ．。该种与叶毛刺齿ＹａｏＨ．ｌａｔｉｆｏｌｉａ Ｃｈｅｎ ＆ Ｌｉ,１９９８相似,下唇基节均具叶状刚毛．但以头和身体各部分具有较多的刚毛可与后者相区别。     

草螽属二新种记述(直翅目:草螽科)(英文)

作者在整理在广东所采的螽斯标本时,发现草螽属二新种,即广东草螽Conocephalusguangdon-gensissp．nov．和异刺草螽Conocephalusdifferentussp.nov.,模式标本保存于中山大学昆虫学研究所。广东草螽Conocephalusguangdongensissp.nov．和二齿草螽ConocephalusbidentatusShietZhent、Conocephalusoceanicus（LeGuillou）相似,同前者的主要区别：雄性尾须内侧的一对刺粗壮,前足股节腹面内侧具2齿,雌性下生殖板后端宽;同后者的主要区别：头顶狭,雄性尾须内的一对刺粗壮。异刺草螽Conocephalusdifferentussp.nov.和沟额草螽ConocephalussulcifrontisXiaetLiu相似,中足股节腹面外侧具1齿,雄性尾须内侧的刺也不同。     

中国齿棘圆属一新种(弹尾目:圆科)(英文)

本文记述了中国圆科齿棘圆属一新种,南京齿棘圆Arrhopalitesnanjingensissp.nov.。该圆的许多形态特征与A.octacathus相近,但可根据围肛附器等结构的不同将二者区分。     

中国浙江省刺齿虫兆属一新种(弹尾目:长角虫兆科)

本文记述了中国刺齿虫兆属１新种——天台刺齿虫兆Ｈｏｍｉｄｉａｔｉａｎｔａｉｅｎｓｉｓ,ｓｐ．ｎｏｖ．。该种色斑明显不同于此属所有已知种。它的许多特征与朝鲜的Ｈ．ｆｌａｖｏｎｉｇｒａＳｚｅｐｔｙｃｋｉ,１９７３相似,但上唇、下唇和弹器齿节基部等处的刚毛及腹部第ＩＩ节的毛序可区分两者。正模♀,浙江天台山,采集号８５３７,１９９６－ＶＩＩ－１６;副模５♀♀,采集号８５３５、８５３６和８５３７,其它同正模。模式标本保存于南京大学生物系。     

中国安徽省刺齿虫兆属一新种(弹属目:长角虫兆科)

本文记述刺齿虫兆属１新种：祁门刺齿虫兆Ｈｏｍ ｉｄｉａ ｑｉｍ ｅｎｅｎｓｉｓ, ｓｐ． ｎｏｖ． （图１～１２）。该种在颏部具有叶状毛与Ｈ． ｌａｔｉｆｏｌｉａ Ｌｉ＆ Ｃｈｅｎ １９９９和Ｈ． ｐｏｌｙｓｅｔａ Ｃｈｅｎ １９９８相似,主要区别在于体色斑纹和头部背面、下唇基部、颏部及第４腹节等部位毛序。正模♀,副模２♀♀,安徽祁门牯牛降国家自然保护区,１９９４－ Ⅷ－ ２５,存于南京大学生物科学与技术系。     

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.