贵州远盲属蚯蚓二新种：单向蚓目：巨蚓科

本文报道发现于贵州的远盲属蚯蚓二个新种－少腺远盲蚓,新种Ａｍｙｎｔｈａｓ ｍｅｉｏｇｌａｎｄｕｌａｒｉｓ ｓｐ．ｎｏｖ．和簇腺远盲蚓,新种Ａｍｙｎｔｈａｓ ｆａｓｃｉｃｕｌｕｓ ｓｐ．ｎｏｖ．。文中作者对新种的外部形态和内部构造进行了详细的描述,并与各自的相似种类进行了比较。二个新种的模式标本均于１９８８年５月采于贵州雷公自然保护区。     

贵州远盲属蚯蚓一新种记述（单向蚓目：巨蚓科）

本文报道发现于贵州的远盲属蚯蚓一新种,命名为陈氏远盲蚓Ａｍｙｎｔｈａｓｃｈｅｎｉｓｐ．ｎｏｖ．。模式标本采于贵州省梵净山。     

中国线蚓科的研究Ⅰ.半线蚓属的新种及新记录

本文氡线蚓科（Ｅｎｃｈｙｔｒａｅｉｄａｅ）半线蚓属（Ｈｅｍｉｅｎｃｈｙｔｒａｅｕｓ）４种,其中２种为新种,即扁毛半线蚓（Ｈ．ｐｌａｎｉｓｅｔｏｓｕｓ ｓｐ．ｎｏｖ）和短囊半线蚓（Ｈ．ｂｒａｃｈｙｔｈｅｃｕｓ ｓｐ．ｎｏｖ）。另２种是国内新记录,即史氏半线蚓（Ｈ．ｓｔｅｐｈｅｎｓｏｎｉ）和洛氏半线蚓（Ｈ．ｌｏｋｓａｉ）。     

长白山杜拉属蚯蚓一新种（寡毛纲：链胃蚓科）

本文报告长白山地区杜拉属蚯蚓一新种,长白山杜拉蚓Ｄｒａｗｉｄａｃｈａｎｇｂａｉｓｈａｎｓｉｓｓｐ．ｎｏｖ。模式标本保存存于杭州师范学院生物系。     

中国海蚓属蚯蚓（寡毛纲：舌文吲科）一新种

本文描述了于１９９３－１９９４年在广东茂名发现的海蚓属蚯蚓一新种－－广东海蚓Ｐｏｎｔｏｓｃｏｌｏｘ ｇｕａｎｇｄｏｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．,模式标本存放于杭州师范学院生物系。     

四川丽蝇族三新种：双翅目：丽蝇科

１９８０－１９９４年在四川一些地区采获的蝇类标本中,发现丽蝇族Ｃａｌｌｉｐｈｏｒｉｎｉ３新种,分别命名为二郎山蚓蝇Ｏｎｅｓｉａ ｅｒｌａｎｇｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．花蚓蝇Ｏｎｅｓｉａ ｆｌｏｒａ ｓｐ．ｎｏｖ．大叶陪丽蝇Ｂｅｌｌａｒｄｉａ ｍｅｇａｌｏｂａ ｓｐ．ｎｏｖ．,模式示本存于作者所在单位。     

玛利安蚓属一新种(环节动物门:寡毛纲:线蚓科)

描述线蚓科Ｅｎｃｈｙｔｒａｅｉｄａｅ玛利安蚓属Ｍａｒｉｏｎｉｎａ Ｍｉｃｈａｅｌｓｅｎ１８８９一新种－－长白山玛利安蚓Ｍ．ｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓ Ｘｉｅ,Ｌｉａｎｇ ｅｔ Ｗａｎｇ,ｓｐ．ｎｏｖ。该种的主要特点为：刚毛线束２～４条直棒状,一束内志长度不等;肾管在隔膜前仅包含肾漏斗;储精囊单个,发达,受精囊腔有２个近球形的分支,分支内具精子环。     

甘肃省丽盲蝽属二新种（半翅目：盲蝽科）

本文记述分布于甘肃省的丽盲蝽属新丽盲蝽亚属（ｓｕｂｇ．Ｎｅｄｙｇｕｓ）二新种,修长丽盲蝽Ｌｙｇｏｃｏｒｉｓ（Ｎｅｏｌｙｕｇｓ）ｅｌｏｎｇａｔｕｌｕｓｐ．ｎｏｖ．和甘肃丽盲蝽Ｌｙｇｏｃｏｒｉｓ（ｎｅｏｌｙｇｕｓ）ｇａｎｓｕｅｎｓｉｓｓｐ．ｎｏｖ模式标本均存放南开大学生物系。     

广西瘤瘿螨属四新种记述：蜱螨亚纲：瘿螨科

４个新种是紫薇瘤瘿螨Ａｃｅｒｉａ ｌａｇｅｒｓｔｒｏｅｍｉａｅ Ｋｕａｎｇｅｔ Ｙａｎｇ,ｓｐ．ｎｏｖ．,路边青瘤瘿螨Ａｃｅｒｉａ ｇｅｉ Ｋｕａｎｇ ｅｔＬｕ,ｓｐ．ｎｏｖ．,广西瘤瘿螨Ａｃｅｒｉａ ｇｕａｎｘｉｅｎｓｅ ＫｕａｎｇｅｔＬｕ,ｓｐ．ｎｏｖ．和梧州瘤瘿螨Ａｃｅｒｉａ ｗｕｚｈｏｕｅｎｓｉｓ Ｋｕａｎｇｅｔ Ｙａｎｇ,ｓｐ．ｎｏｖ。     

单爪螯蜂属二新种：膜翅目：螯蜂科;单爪螯蜂亚科

本文记述单爪螯蜂属二新种;梳垫单瓜螯蜂Ａｎｔｅｏｎ ｐｅｃｔｉｎａｒｏｌｉｕｍ,ｓｐ．ｎｏｖ。和滑盾单爪螯蜂Ａｎｔｅｏｎ ｂｌａｎｄｕｓｃｕｔｕｍ,ｓｐ．ｎｏｖ。新种的模式标本保存在浙江农业大学植物保护系。     

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.