广西波蚱属二新种记述(直翅目:蚱总科:短翼蚱科)

记述采自广西短翼蚱科波蚱属Bolivaritettix 2新种,即黑股波蚱Bolivaritettix nigrifemurus,sp.nov.及六万山波蚱Bolivaritettix liuwanshanensis,sp.nov.。模式标本保存在陕西师范大学动物研究所标本室。     

云南省波蚱属二新种（直翅目：蚱总科：短翼蚱科）

记述采自云南省短翼蚱科昆虫2新种,即云南波蚱Bolivaritettix yunnanensis sp.nov.及福贡波蚱Bolivaritettix sp.nov.,模式标本保存于陕西师范大学动物研究所。     

云南波蚱属二新种记述(直翅目,蚱总科,短翼蚱科)

记述云南波蚱属Bolivaritettix昆虫2新种,即黑翅波蚱Bolivaritettic nigropennis sp. nov.及大围山波蚱Bolivaritettix daweishanensis sp. nov..模式标本保存于陕西师范大学动物研究所标本室.     

滇西横断山地区短翼蚱科四新种记述（直翅目：蚱总科）

记述采自云南省西部横断山地区短翼蚱科4新种,即无量山大磨蚱Macromotettix wuliangshana,sp．nov．,小翅波蚱Bolivaritettix microptera,sp．nov．,片马波蚱Bolivaritettix pianmaensis,sp．nov．及无量山波蚱Bolivaritettix wuliangshanensis．sp．nov．。模式标本保存于西南林学院保护生物学院昆虫标本室。     

广西大瑶山地区蚱总科六新种记述(直翅目)

记述扁角蚱科及短翼蚱科昆虫6新种及1种雄性新发现,即齿股扁角蚱Flatocerus dentifemura sp.nov.,钩顶棒蚱Rhopalotettix uncusivertex sp.nov.,金秀玛蚱Mazarredia jinxiuensis sp.nov.,断隆玛蚱Mazarredia interrupta sp.nov.,短背波蚱Bolivaritettix brachynotus sp.nov.,圆肩波蚱Bolivaritettix circinihumerus sp.nov.及湖南希蚱Xistrella hunanensis Wang雄性新发现。模式标本保存于中国科学院动物研究所。     

广西短翼蚱科一新种记述(直翅目,蚱总科)

记述采自广西河池地区短翼蚱科波蚱属Bolivaritettix 1新种,即罗城波蚱Bolivaritettix luochengensis sp.nov..模式标本保存在陕西师范大学动物研究所标本室.     

云南波蚱属二新种（直翅目：短翼蚱科）

记述采自云南省绿春县牛孔乡的直翅目短翼蚱科波蚱属2新种:长跗波蚱Bolivaritettix longitarsus Liang,sp.nov.,绿春波蚱Bolivaritettix luchunensis Liang,sp.nov.。模式标本保存于中山大学生物博物馆和中国林业科学研究院。     

西藏地区蚱总科三新种及西藏拟科蚱雄性的发现（直翅目）

记述采自西藏墨脱地区的蚱总科3新种,即弧肩波蚱Bolivaritettix arcihumerus sp.nov.,短角蚱Tetrix brevicornis sp.nov.及墨脱悠背蚱Euparatettix motuoensis sp.nov.。同时报道西藏拟科蚱Cotysoidestibetanus(Zheng)雄性新发现。     

广西西北部布柳河地区蚱总科四新种记述(直翅目:蚱总科)

本记述采自广西布柳河地区蚱总科昆虫4新种,即拟宽股庭蚱Hedotettix latifemoroides．sp．nov．,拟瘤背蚱Tetrix torulosinotoides,sp．nov．,平缘蚱Tetrix rectimargina,sp．nov．及拟黑背悠背蚱Euparatettix pseudomelanotus,sp．nov．此外还首次记述短翼蚱科波蚱属的二种雌性及一种雄性,即荔波波蚱Bolivaritettix liboensis Zheng et al,黄条波蚱Bolivaritettix luteolineatus Zheng et al及圆肩波蚱Bolivaritettix circimhumerus Zheng,模式标本保存于陕西师范大学动物研究所标本室。     

江西省蚱总科五新种记述(直翅目)

记述采自江西省九连山地区蚱总科5新种,即短翼蚱科的九连山狭蚱Xistra jiulianshanensis sp.nov.、江西玛蚱Mazarredia jiangxiensis sp.nov.、短背拟大磨蚱Macromotettixoides brachynota sp.nov.、波背波蚱Bolivaritettix unduladdoraslis sp.nov.及蚱科的黑胫版纳蚱Bannatettix nigritibialis sp.nov..模式标本保存于陕西师范大学动物研究所昆虫标本室及河北大学博物馆.     

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.