云南省蚱总科四新种(直翅目)

记述采自云南省蚱总科昆虫4新种,即断脊羊角蚱Criotettix interrupticostus sp.nov.,勐腊波蚱Bolivaritettix menglaensis sp nov.,黄条尖顶蚱Teredorus flavistrial sp.nov.及昆明微翅蚱Alulatettix kunmingensissp.nov.,此外记述云南羊角蚱Criotettix yunnanensis Zheng et Ou及瘤背大磨蚱Macromotettix torulisinota Zheng的新发现的雄性.模式标本保存于陕西师范大学动物研究所昆虫标本室.     

云南省西南部刺翼蚱科二新种(直翅目,蚱总科)

记述采自云南省西双版纳及普洱地区刺翼蚱科2新种,即三角羊角蚱 Criotettix triangularis sp.nov.,和长背赫蚱Hebarditettix dolichonota 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.     

海南省羊角蚱属二新种记述 (直翅目：蚱总科，刺翼蚱科)

 记述了海南省刺翼蚱科Scelimenidae羊角蚱属Criotettix两 新种：海南羊角蚱Criotettix hainanensis sp.nov.和长翅羊角蚱Criotettix longi pennis sp.nov.。模式标本保存在中山大学昆虫学研究所标本室。     

云南省刺翼蚱科四新种记述(直翅目,蚱总科)

报道采自云南省刺翼蚱科4新种,即尖翅刺翼蚱Scelimena spicupennis sp．nov．、云南羊角蚱Criotettix yun-nanensis sp．nov．、龙陵羊角蚱Criotettix longlingensis sp．nov．及无量山真角蚱Eucriotettix wuliangshanensis sp．nov．。模式标本保存于西南林学院昆虫标本室。     

广西那坡地区蚱总科三新种(直翅目:蚱总科)

记述了刺翼蚱科及短翼蚱科昆虫3新种,即那坡羊角蚱Criotettix napoensis sp.nov.,黑胫波蚱Boli-varitettix nigritibialis sp.nov.及长翅大磨蚱Macromotettix longipennis sp.nov.。模式标本保存在中国科学院动物研究所。     

云南省蚱总科两新种（直翅目）

记述采自云南省西双版纳傣族自治州及大理白族自治州蚱总科2新种,即瘤背羊角蚱Criotettix torulisinotus sp.nov,及保山蚱Tetrix baoshanensis sp.nov.,模式标本保存于陕西师范大学生命科学学院动物研究所标本室。     

云南省西部地区蚱总科四新种记述(直翅目)

记述采自云南省西部地区蚱总科4新种,包括刺翼蚱科的盈江羊角蚱Criotettix yingjiangensis,sp.nov.和长背优角蚱Eucriotettix longidorsalis,sp.nov.,短翼蚱科的黑胫玛蚱Mazarredia nigritibia,sp.nov.及腾冲波蚱Bolivaritetti...     

云南省蚱总科四新种记述(直翅目)

记述采自云南省瑞丽和东川地区蚱总科4新种,即瑞丽羊角蚱Criotettix ruiliensis,sp.nov.,凹缘台蚱Formosatettix curvimarginus,sp.nov.,东川台蚱Formosatettix dongchuanensis,sp.nov.及缺翅悠背蚱Euparatettix apterus.sp.nov..模式标本保存于陕西师范大学动物研究所及西南林学院云南省森林灾害预警与控制重点实验室标本室.     

广西羊角蚱属三新种记述(直翅目:蚱总科:刺翼蚱科)

记述分布于广西的羊角蚱属昆虫3新种,即百色羊角蚱Criotettixbaiseensis,sp.nov.,广西羊角蚱Criotettixguangxiensis,sp.nov.和宽股羊角蚱Criotettixlatifemurus,sp.nov.。新种模式标本保存在陕西师范大学动物研究所标本室。     

广西北部地区蚱总科七新种记述(直翅目)

记述采自广西北部蚱总科昆虫7新种,即黑股羊角蚱Criotettix nigrifemurus,sp．nov．,横刺羊角蚱Criotettix transpinius,sp．nov．,拟圆头波蚱Bolivaritettix circocephalosoides．sp．nov．,宜州蚱Tetrix yizhouensis,sp．nov．,丘背蚱Tetrix cliva,sp．nov．,白条悠背蚱Euparatettix albostriatus,sp．nov．及九万山悠背蚱Euparatettix jiuwanshanensis,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。     

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.