海南省细须螨属二新种（蜱螨亚纲：细须螨科）

本文对采自海南省细须螨科，１９１３、细须螨属，１８７５的种，儋县细须螨，新种Ｔｅｎｕｉｐａｌｐｕｓ ｄａｎｘｉａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．和三亚细须螨，新种Ｔｅｎｕｉｐａｌｐｕｓ ｓａｎｙａｅｎｓｉｓ ｓｐ。ｎｏｖ。进行详细功述，并与近种进行了比较，模式标本保存在沈阳农业大学植保系。     

中国江西棉田棉足绒螨新种记述(蜱螨亚纲：绒螨科)

记述了中国江西省棉田的绒螨一新种,即棉足绒螨的幼螨后螨态。新种的成螨成其它种类的区别为须胫节仅具1根刺状毛,冠脊权有1根前中毛。     

长须螨属一新种和一新纪录（蜱螨亚纲：长须螨科）

本文记述长须螨属一新种和一新纪录。天目长须螨，新种Ｓｔｉｇｍａｅｕｓ ｔｉａｎｍｕｅｎｓｉｓ ｓｐ．ｎｏｖ．新种模式标本保存于上海复旦大学环境和资源生物学系。     

中国细须螨属一新种：蜱螨亚纲：细须螨科

本文记述我国细须螨属一新种－郑州细须螨Ｔｅｎｕｉｐａｌｐｕｓ ｚｈｅｎｇｚｈｕｕｅｎｓｉｓｓｐ．ｎｏｖ．新种采自河南省郑州市玉兰上。模式标本存于沈阳农业大学植保系。     

中国平单梳螨属1新种记述（蜱螨亚纲：肉食螨科）

记述了肉食螨科Cheyletidae 1新种,南昌平单梳螨Acaropsella nanchangensis;该新种后背板6对匙状毛,须肢股节膨大,长约为宽的1.2倍。     

中国蚌螨属水螨一新种记述(蜱螨亚纲,蚌螨科)

记述了从我国江西省淡水蚌中采到的蚌螨科Unioncolidae水螨1新种,簇刺蚌螨U.(Anodontinatax)penicillatus sp.nov.,模式标本保存于南昌大学生物科学工程系.簇刺蚌螨,新种Unionicola(Anodontinatax)penicillatus sp.nov.(图1～11)正模♂,副模1♀,江西鄱阳湖,1998-11-11,文春根采自背角无齿蚌A.woodiana woodiana(Lea).鉴别特征新种近似于中间蚌螨U.(Anodontinatax)intermedia(Koenike,1882),但通过以下特征区别后者:雄螨具有背小板,雄螨Ⅳ-L-4-5的密刺毛数量为8～10和22～24(后者为18～20和17～19),射精复合体的形状和须肢的分叉腹小爪.词源:拉丁词"penicillatus"意思为"一簇毛的",指新种因雄螨Ⅳ-L-4-5有一簇刺毛而命名.     

中国赤螨两新种（蜱螨亚纲：赤螨科）

醉语言忆述赤螨科２属２新种。朱亭纤赤螨Ｌｅｐｔｕｓ ｚｈｕｉｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．,外寄生于刺股钩臂叶甲和一种蝉,新种与Ｌ．ｄｒａｃｏ Ｓｏｕｔｈｃｏｔｔ近似,前感毛基部位于骨化程度较低之盾片上,但新种Ｖｓ刚毛位于足Ⅱ膝节上,而不象Ｌ．ｄｒａｃｏ位于足Ｉ膝节上,新种须肢股节上刚毛为披针形,而Ｌ．ｄｒａｃｏ为棒状,以资区别。湖南查丽赤螨Ｃｈａｒｌｅｔｏｎｉａ ｈｕｎａｎｅｎｓｉｓ ｓｐ．ｎｏ     

福建狭跗线螨属一新种(蜱螨亚纲:跗线螨科)

在研究跗线螨期间,我们发现一个新种。隶属于跗线螨科Tarsonemidae Kramer,1877狭跗线螨属Steneotarsonemus Beer,1954拟叉毛狭跗线螨Steneotarsonemus su-bfurcatus,新种模式标本保存于福建省农科院植保所。文中长度单位为μm。 拟叉毛狭跗线螨Steneotarsonemus subfurcatus新种(图1—6) 雄成螨 体长177—190(从颚体须肢的前端至生殖乳突的末端),体宽87—90(测量3个标本的数据)。     

二爪螨属和中Xue螨属各一新种（蜱螨亚纲，前爪螨科，Xue螨科）

记述尾足螨股前爪螨科二爪螨属1新种,具齿二爪螨Dinychus dentatus sp.nov．和革螨股Xue螨科中Xue螨属1新种,敦化中Xue螨Mesozercon dunhuaensis sp．nov．,中Xue螨属在中国为首次记录。     

中国蝠螨属一新种及肪刺螨属一新纪录（蜱螨亚纲：蝠螨科,巨刺螨科）

本文报道采自新疆蝙蝠的革螨一新种,即类柯蝠螨,中国一新纪录,盖氏肪刺螨,新种与柯氏蝠螨,１９１０相似。     

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.