瘤瘿螨属四新种记述（蜱螨亚纲：瘿螨科）

记述瘿螨亚科Eriophyinae瘤瘿螨属4新种：柳州瘤瘿螨Aceria liuzhouensis sp．nov．，采自柳州的木芙蓉；狗肝菜瘤瘿螨Aceria dicliptera sp．nov．，采自武鸣县的狗肝菜；上思瘤瘿螨Aceria shangsiensis sp．nov．和破布叶瘤瘿螨Aceria microcis sp．nov．，分别采自防城市的降真香和破布叶。     

中国叶刺瘿螨亚科四新种记述

记述叶刺瘿螨亚科4新种:野葛藤裂柄瘿螨 Dichopelmus puerariae,sp.nov.,猪肚勒上三脊瘿螨 Calepitrimerus jasmini,sp.nov.,环江顶冠瘿螨 Tegolophus huanjiangensis,sp.nov.,类芦新四瘿螨 Neotetra neyraudiae,sp.nov..模式标本保存在广西大学农学院.     

中国瘿螨科二新种记述

记述瘿螨科Eriophyidae2新种：叶同学瘿螨亚科Phyllocoptinae小丽瘿螨族Acaricalini的橄榄裂柄瘿螨Dichopelmus canarii Kuang,Xu et Zeng,sp.nov,伪足瘿螨亚科Nothopodinae伪足瘿螨族Nothopodini的博白合位瘿螨Cosella bobainensis Kuang,sp.nov。     

中国叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

记述叶刺瘿螨亚科4新种：粗毛榕上三脊瘿螨Calepitrimerus fici Wei,sp．nov．,大叶紫珠上瘿螨Epitrimerus callicarpae Wei et Li,sp．nov．,木姜子五脊瘿螨Pentamerus litseae Wei et Chen,sp．nov．和三又苦顶背瘿螨Tegonotus evodiae Wei,sp．nov．。模式标本保存在广西大学农学院。     

中国瘿螨科二新种记述(蜱螨亚纲)

记述瘿螨科Eriophyidae 2新种 :叶刺瘿螨亚科Phyllocoptinae小丽瘿螨族Acaricalini的橄榄裂柄瘿螨DichopelmuscanariiKuang ,XuetZeng ,sp .nov .;伪足瘿螨亚科Nothopodinae伪足瘿螨族Nothopodini的博白合位瘿螨CosellabobainensisKuang ,sp .nov .。     

广西十万大山瘿螨一新属五新种(蜱螨亚纲,瘿螨科)

新属为拟叶剌瘿螨属Paraphyllocoptes gen.nov.,模式种为十万山拟叶刺瘿螨Paraphyllocoptes shiwanshanensis sp.nov..5个新种是十万山拟叶剌瘿螨Paraphyllocoptes shiwanshanensis sp.nov.,假蒌上瘿螨Epitrimerus piper sp.nov.,润楠叶剌瘿螨Phyllocoptes machilus sp.nov.,广西斜背瘤瘿螨Vasates guangxiensis sp.nov.和棋子豆分位瘿螨Disella cylindrokeluphae sp.nov..     

中国瘿螨科五新种记述(蜱螨亚纲:瘿螨总科)

5新种是丁香顶冠瘿螨Tegolophus syringae sp.nov.,寄主为丁香;黍顶冠瘿螨Tegolophus panici sp.nov.,寄主为黍;胡枝子顶冠瘿螨Tegolophus lessedezae sp.nov.,寄主为胡枝子;毛竹畸瘿螨Abacarus phyllostachyis sp.nov.,寄主为毛竹;渝畸瘿螨Abacarus yunensis sp.nov.,寄主为竹。     

中国羽爪瘿螨亚科四新种记述(蜱螨亚纲,羽爪瘿螨科)

记述羽爪瘿螨亚科Diptilomiopinae 4新种：树参羽爪瘿螨Diptilomiopus dendropanacis sp.nov.,长毛柃羽爪瘿螨Diptilomiopus euryae sp.nov.,华南桦双羽爪瘿螨Diptacus betulae sp.nov.和大明山双羽爪瘿螨Diptacus damingshanensis sp.nov.。     

中国南方叶刺瘿螨亚科3新种记述（蜱螨亚纲，瘿螨总科）

本文记述了叶刺瘿螨亚科Phyllocoptinae3新种：菝葜离子瘿螨Leipothrix smilaxsp．nov．,白饭树顶冠瘿螨Tegolophus virosae sp．nov．,鸡爪簕顶冠瘿螨Tegolophus randiae sp．nov．。本文所用量度单位均为微米（μm）。模式标本保存在广西大学农学院。     

叶刺瘿螨亚科三新种记述(蜱螨亚纲:瘿螨科)

记述了瘿螨科3新种,芒萁丽瘿螨Calacarus dicranopteris sp.nov.,黄肉楠上三脊瘿螨Calepitrimerus actinodaphnis sp.nov.和蒲葵上三脊瘿螨Calepitrimerus livistonae sp.nov.。均采自广西南宁市。     

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.