中国粉螨科一新属新种（蜱螨亚纲：真螨目）

本文记述从江西南昌市的东方伏翼Ｐｉｐｉｓｔｒｅｌｌｕｓ ａｂｒａｍｕｓ及花斑皮蠹Ｔｒｏｇｏｄｅｒｍａｖａｒｉａｂｉｌｅ上采到粉螨科一新属、新种：华皱皮螨属Ｓｉｎｏｓｕｉｄａｓｉａ ｇｅｎ．ｎｏｖ．、东方华皱皮螨Ｓ．ｏｒｉｅｎｔａｌｉｓ ｓｐ．ｎｏｖ．,华皱皮螨属与皱皮螨属Ｓｕｉｄａｓｉａ近似。     

中国粉螨科—新属新种──（蜱螨亚纲：真螨目）

本文记述从江西南昌市的东方伏翼Ｐｉｐｌｓｔｒｒｌｌｕｓａｂｒａｍｕｓ及花斑皮蠢Ｔｒｏｇｏｄｅｒｍａｖａｒｉａｂｉｌｅ上采到粉螨科一新属、新种：华皱皮螨属Ｓｉｎｏｓｕｉｄａｓｉａｇｅｎ．ｎｏｖ．、东方华皱皮螨Ｓ．ｏｒｉｒｎｔａｌｉｓｓｐ．ｎｏｖ,华皱皮螨属与皱皮螨属Ｓｕｉｄａｓｉａ近似。     

纳氏皱皮螨生活史的研究

纳氏皱皮螨Suidasia nesbitti Hughes是我国重要储藏物螨类之一.在我国大陆和台湾省,腐食酪螨Tyrophagus putrescentiae (Schrank)是最重要的储藏物螨类,其次是皱皮螨属Suidasia的二个种,即大陆的纳氏皱皮螨和台湾省的棉兰皱皮螨S. medanensis Oudemans.本文研究了纳氏皱皮螨的生活史,并对生活史各发育阶段的形态进行描述.本文还对纳氏皱皮螨和棉兰皱皮螨的形态,分布和为害情况列表进行比较.     

拱顶螨属1新种（蜱螨亚纲：拱顶螨科）

描述福建省树干上的拱顶螨属1新种:皱皮拱顶螨Camerobia rugulosa sp.nov.。     

中国粉螨科一新属新种（蜱螨亚纲：真螨目）

本文记述从江西南昌芝麻中采到的粉螨科一新属新种;华脂螨属Sinolardoglyphus gen. nov.,南昌华脂螨S.nanchangersis sp.nov.,本属与脂螨属Lardoglyphus近似,主要不同点在于华脂螨属的sce和sci几乎等长,受精囊漏斗形,雌螨各足的爪分叉,仅端部分离,肛毛a特别长。     

湖北神农架华厉螨属一新种（蜱螨亚纲：厉螨科）

本文记述采自湖北省神农架林区华厉螨属一新种,即柳氏华厉螨Ｓｉｎｏｌａｅｌａｐｓ ｌｉｕｉ ｓｐ．ｎｏｖ。并与近似种猪尾鼠华厉螨．Ｓｙｐｈｌｏｍｙｄｉｓ Ｇｕ ｅｔ Ｗａｎｇ,１９７９,武夷华厉螨Ｓ．ｗｕｙｉｅｎｓｉｓ Ｗａｎｇ,１９８２和云南华厉螨Ｓ．ｙｕｍｍａｎｅｎｓｉｓ Ｔｉａｎ,９１８８进行了比较。     

小黑螨科一新属新种（蜱螨亚纲：辐螨亚目）

建立了小黑螨科一新属：华颚螨属Ｓｉｎｏｇｎａｔｈｕｓ ｇｅｎ．ｎｏｖ．;描述了模式种：王氏华颚螨Ｓ．ｗａｎｇａｅ ｓｐ．ｎｏｖ．,并列出了该科分属检索表。     

尿螨病的病原学研究

探讨引起尿螨病的病原螨种类,以离心沉淀法浓缩尿液或用铜丝筛（100目／寸）过滤,分离尿液中的螨,直接镜检鉴定螨种,从69例尿螨阳性者的尿液中共分离出17种病原螨,即：粗脚粉螨Acarus siro,腐食酪螨Tyrophagus putrescentiae,长食酪螨T.longior,椭圆食粉螨Aleuroglyphus ovatus,伯氏嗜木螨Caloglyphus berlesei,食菌嗜木螨C.mycophagus,纳氏皱皮螨Suidasianesbitti,河野脂螨Lardoglyphus konoi,家食甜螨Glycyphagus domesticus,甜果螨Carpoglyphuslactis,害嗜鳞螨Lepidoglyphus destructor,粉尘螨Dermatophagoides farinae,屋尘螨D.pteronyssinus,梅氏嗜霉螨Euroglyphus maynei,赫氏蒲螨Pyemotes hughesi,谷跗线螨Tarsonemus granarus,人跗线螨T.hominis,在同一受检者尿液中检出成螨者19例,检出幼螨者18例,同时发现成螨和幼螨者11例,成螨和卵同时检出者3例,成螨,幼螨和卵同时检出者11例,幼螨和卵同时检出者6例,休眠休和卵同时检出者1例;分别占尿螨阳性总数的27．54％,26．09％,15.94%,4.35%,15.94%,8.70%,1.44%.69例悄螨病患者每200mL尿液中检出螨数0．5个以下者32人,0．6－1个者25人,1．1＝－1．5个者10人,1．5个以上者2人,引起尿螨病的病原螨种类较多,其中粉螨是主要的病原螨。     

腾岛螨科一新属新种（蜱螨亚纲：前气门亚目）

本文记述腾岛螨科一新属一新种－华腾岛螨属Ｓｉｎｏｔｅｎｅｒｉｆｆｉａ ｇｅｎ．ｎｏｖ．，光裸华腾岛螨Ｓｉｎｏｔｅｎｅｒｆｆｉａ ｎｕｄａ ｓｐ．ｎｏｖ．。新种采自辽宁省朝阳市的桧柏上，模式标本保存于沈阳农业大学植保系。     

乳突寄螨雌螨描述(蜱螨亚纲: 革螨股: 寄螨科)

乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 ,在所查到的文献中 ,仅记载有生殖区、头盖和螯钳的形状 [1 ,2 ] ,无其它描述。国内根据丹东标本曾描述该螨雄螨和后若螨 [3] 。本文根据朝鲜标本详细描述其雌螨。文中测量单位为 μm,括号内为测量均值。图 1- 7　乳突寄螨 Parasitus mammillatus (Berlese)1.背面 ;2 .腹面 ;3.头盖 ;4 .螯钳 ;5 .颚角 ;6 .须肢 ;7.跗节 乳突寄螨 Parasitus mammillatus ( Berlese,1 90 4 )雌螨 (图 1 - 7)体黄色 ,卵圆形 ,长 71 2 - 793( 758) ,宽 4 0 2 - 483( 4 50 )。背板覆盖整个背面 ,前背…     

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).