中国四川褶蜢属一新种(直翅目,蜢总科,蜢科)

记述了采自四川的褶蜢属Ptygomastax B.-Bienko,1959 1新种,阿坝褶蜢Ptygomastax abaensis sp.nov.,新种同黑马河褶蜢Ptygomastax heimahoensis Cheng et Hang,1974近似,不同之处为:颜面隆起几何平行;触角15节;后足胫节具15～17刺.正模♂,四川阿坝,海拔3443 m,2011-08-24,叶保华采.雄性 未知.词源:新种种名源自模式标本产地地名.     

大别山地区比蜢属一新种(直翅目:蜢总科)

本文记述在大别山区采到的比蜢属一新种三齿比猛 Pielomastax tridentata sp. nov.,新种近似于细尾比蜢 Pielomastax tenuicerca Hsia et Liu,模式标本保存于山东大学生物系及陕西师范大学生物系。     

湖南省比蜢属一新种记述（直翅目：蜢总科）

本文记述采自湖南省壶瓶山自然保护区比蜢属一新种，即尖尾比蜢PieLomastax axuticerca sp.nov。模式标本保存于陕西师范大学动物研究所。     

江西省比蜢属一新种记述（直翅目：蜢总科）

本文记述采自江西省比蜢属１新种：武夷山比蜢Ｐｉｅｌｏｍａｓｔａｘ ｗｕｙｉｓｈａｎｅｎｓｉｓ，ｓｐ．ｎｏｖ．。模式标本保存于山东大学生物系。     

湖北神农架比蜢属一新种：直翅目：蜢总科

本文记述在湖北省采到的比蜢属一新种,神农架比蜢Ｐｉｅｌｏｍａｓｔａｘｓｈｅｎｎｏｎｇｊｉａｅｎｓｉｓｓｐ．ｎｏｖ．,模式标本保存于山东大学生物系。     

中国蜢总科五新种记述：直翅目：蜢总科

蜢总科Eumastacoidea是一类较罕见而又较原始的小型昆虫,其中有些还被认为是第三纪残遗下来的幸存种类。由于头部颜面的特殊,状似马面被称为马面蜢,又由于触角较短于前足股节也称为短角蜢。大多数种类生活在热带和亚热带的灌木丛或林区内。迄今全世界已知在300种以上。我国对这类昆虫的研究报道甚少,仅知23种,分别隶属于13     

中国比蜢属一新种记述(直翅目:蜢总科)

在调查河南省蝗虫中,发现比蜢属一新种。模式标本保存于中国科学院上海昆虫研究所。 肛翘比蜢Pielomastax lobata新种(图1—6)     

中国比蜢属二新种记述（直翅目：蜢总科）

本文记述采自处牯牛降自然保护区及湖北省神农架比蜢属２新种,即牯牛降比蜢Ｐｉｅｌｏｍａｓｔａｘ ｇｕｌｉｕｊｉａｎｇｅｎｓｉｓ,ｓｐ．ｎｏｖ。及钝齿比蜢Ｐｉｅｌｏｍａｓｔａｘ ｏｂｔｕｓｉｄｅｎｔａｔａ。ｓｐ．ｎｏｖ。模式标本保存于陕西师范大学动物研究所标本室。     

浅谈蚱、蜢、蝗

蝗虫、炸姓是昆虫纲Insec匕、直翅目orthoptera中很大的类群,不少种类是农林牧业的重要害虫,其中有的种类可猖撅发生并形成蝗灾,如沙漠蝗dehistocercagrngarla（ForS－kal）、飞蝗LDcustamlgratoriaL．、意大利蝗Ca帅tamusitalicusL．、西伯利亚蝗Gompho－ceruss汕irlcusL．、印度黄脊蝗Patangasucc～nc贼hnnaeus）、黄脊竹蝗Ceracris伍ngsu＊。等。①沙漠蝗的记述可追溯到古埃及印制的书籍中和古墓内的壁滩上。在史前时期,它就是北非、西非和印度等沿热带地区之河谷、绿洲上的农业害虫。在古波斯人所用的楔形文字中也论及沙漠蝗。…     

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.