河南伏牛山缘脊叶蝉亚科种类记述：同翅目：叶蝉科

本文论述河南省伏牛山缘脊叶蝉亚科３属５种,其中包括１新属：管茎叶蝉属Ｆｉｓｔｕｌａｔｕｓ ｇｅｎ．ｎｏｖ．和３新种：中华管茎叶蝉Ｆｉｓｔｕｌａｔｕｓ ｓｉｎｅｎｓｉｓ ｓｐ．ｎｏｖ．河南胫槽叶蝉Ｄｒａｂｅｓｃｕｓ ｈｅｎａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．细茎胫槽叶蝉Ｄｒａｂｅｓｃｕｓ ｍｉｎｉｐｅｎｉｓ ｓｐ．ｎｏｖ。此外还厘订新异２个。新种模式标本分别保存在中国农业大学,中国科学院动物研究所,中山大     

脊额叶蝉属三新种：同翅目：叶蝉科：横脊叶蝉亚科

本文记述脊额叶蝉属Ｃａｒｉｎａｔａ３新种,即枝茎脊额叶蝉Ｃ．ｂｒａｎｃｈｅｒａ Ｗａｎｇ ｅｔ Ｌｉ。ｓｐ．ｎｏｖ,弯突脊额叶蝉Ｃ．ｒｅｃｕｒｖａｎａ Ｗａｎｇ ｅｔ Ｌｉ,ｓｐ．ｎｏｖ．一点脊额叶蝉Ｃ．ｕｎｉｐｕｎｃｔａ Ｗａｎｇ ｅｔＬｉ,ｓｐ,ｎｏｖ．模式标本保存在贵州农学院     

云南狭顶叶蝉属二新种（同翅目：叶蝉科：横脊叶蝉亚科）

本文记述狭顶叶蝉属Ａｎｇｕｓｔｅｌｌａ２新种,即：白斑狭顶叶蝉Ａ．ａｌｂｏｎｏｔａｔａ．ｓｐ．ｎｏｖ,黑背狭顶叶蝉Ａ．ｎｉｇｒｉｎｏｔａｓｐ．ｎｏｖ,模式标本保存在中国科学院动物研究所。     

脊额叶蝉属四新种（同翅目：叶蝉科：横脊叶蝉亚科）

记述脊额叶蝉属Ｃａｒｉｎａｔａ４新种,即：周氏脊额叶蝉Ｃ．ｃｈｏｕｉ,ｓｐ．ｎｏｖ．;短地蝉Ｃ．ｂｒａｃｈｙ ｆｕｒｃａｔａ,ｓｐ。ｎｏｖ．;倒钩脊额叶蝉Ｃ．ｂａｒｂｕｌａｔａ,ｓｐ．ｎｏｖ．及双突脊额叶蝉Ｃ．ｂｉｆｕｒｃａ,ｓｐ。ｎｏｖ．模式标本分别保存在西北农业大学昆虫博物馆,中国科学院动物研究所和中山大学。     

横脊叶蝉科－新属三新种（同翅目：叶蝉总科）

本文记述横脊叶蝉科Ｅｖａｃａｎｔｈｉｄａｅ１新属,凸冠叶蝉属Ｃｏｎｖｅｘａｎａｇｅｎ．ｎｏｖ．,３新种：黑额凸冠叶蝉Ｃｏｎｖｅｘａｎａｎｉｇｒｉｆｒｏｎｔａｓｐ．ｎｏｖ．;白脊凸冠叶蝉Ｃｏｎｖｅｘａｎａａｌｂｉｃａｒｉｎａｔａｓｐ．ｎｏｖ．;红色凸冠叶蝉Ｃｏｎｖｅｘａｎａｒｕｆａｓｐ．ｎｏｖ．。详细描述新属的外部形态及雄性外生殖器特征,并与近似属ＯｎｕｋｉａＭａｔｓｕｍｕｒａ１９１２相比较。     

隐脉叶蝉族一新属新种(同翅目:叶蝉科:隐脉叶蝉亚科)

本文记述隐脉叶蝉族１新属,凹片叶蝉属Ｃｏｎｃａｖｅｐｌａｎａ ｇｅｎ．ｎｏｖ．,１新种,端刺凹片叶蝉Ｃ．ｓｐｉｎａｔａ ｓｐ．ｎｏｖ．,２新组合,红线凹片叶蝉Ｃ．ｒｕｆｏｌｉｎｅａｔａ（Ｋｕｏｈ）,ｃｏｍｂ．ｎｏｖ．和三带凹片叶蝉Ｃ．ｔｒｉｆａｓｃｉａｔａ（Ｈｕａｎｇ）,ｃｏｍｂ．ｎｏｖ．,模式标本保存于贵州农学院。     

中国大叶蝉科一新记录属及一新种一新组合（同翅目：叶蝉总科）

记述大叶科１中国新记录属－长冠叶蝉属Ｓｔｅｎａｔｋｉｎａ Ｙｏｕｎｇ及１新种－双斑长冠叶蝉Ｓｔｅｎａｔｋｉｎａ ｂｉｍａｃｕｌａｔａ,ｓｐ,ｎｏｖ．和１新种组合－角突长冠叶蝉Ｓｔｅｎａｔｋｉｎａ ａｎｇｕｓｔａｔａ,ｃｏｍｂ,ｎｏｖ．模式标本保存在贵州大学昆虫研究所。     

碧蝉属Hea Distant研究：同翅目：蝉科

本文对碧蝉属ＨｅａＤｉｓｔａｎｔ做了研究,并记述该属１新种──云南碧蝉Ｈｅａｙｕｎｎａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．,模式标本保存在中国科学院动物研究所。     

无齿角蝉属四新种记述(同翅目:角蝉科)

本文记述无齿角蝉属ＮｏｎｄｅｎｔｉｃｅｎｔｒｕｓＹｕａｎｅｔＣｈｏｕ４新种,即：秦岭无齿角蝉Ｎ．ｑｉｎｌｉｎｇｅｎｓｉｓ,ｓｐ．ｎｏｖ．,长角无齿角蝉Ｎ．ｌｏｎｇｉｃｏｒｎｉｓ,ｓｐ．ｎｏｖ．,金黄无齿角蝉Ｎ．ａｕｒｅｕｓ,ｓｐ．ｎｏｖ．,和亮斑无齿角蝉Ｎ．ｆｕｌｇｉｐｕｎｃｔａｔｕｓ,ｓｐ．ｎｏｖ．。模式标本保存于西北农业大学昆虫博物馆。     

弯头叶蝉属一新种记述（同翅目：叶蝉科：横脊叶蝉亚科）

本文记述弯头叶蝉属１新种：黑色弯头叶蝉Ｖａｎｇａｍａｐｉｃｅａｓｐ．ｎｏｖ模式标保存在贵州农学院。     

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.     

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     

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.     

鸡传染性法氏囊病病毒研究进展

传染性法氏囊病(Infection bursal disease, IBD)是由鸡传染性法氏囊病毒(Infectious bursal disease virus, IBDV)引起的鸡和火鸡的一种高度接触性传染病,给世界各国的禽养殖业带来了巨大损失.自IBDV发现至今新的变异株不断出现,分子结构的改变导致病毒致病力的改变及宿主对疫苗应答的改变,使得传统的疫苗已不能控制其流行,因此各国学者对其基因组结构和功能进行了广泛深入的研究,并积极研制新型有效的疫苗以达到防治的目的.     

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.     

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).     

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.