中国花翅跳小蜂族二新纪录属和二新种(膜翅目:跳小蜂科)

描述了跳小蜂２新种,好寄生蜚蠊Ｂｌａｔｔａｒｉｄ的弯带敌蟑跳小蜂,新种Ｄｉｃａｒｎｏｓｉｓ ｓｉｎｕａｔｉｓ Ｘｕ,ｓｐ．ｎｏｖ．和采自陕西杨陵寄生寄蝇Ｔａｃｈｉｎｌｄ的斜棒蝇克跳小蜂,新种Ｅｘｏｒｉｓｔｏｂｉａ ｈｌｉｎｏｃｌａｖａｌａＸｕ,ｓｐ．ｎｏｖ．。敌蟑跳小蜂属Ｄｉｃａｒｎｏｓｉｓ Ｍｃｒｃｅｔ和蝇克跳小蜂属Ｅｘｏｒｉｓｔｏｂｉａ Ａｓｈｍｅａｄ在我国为新纪录属。     

寄生于红腹缢管蚜的蚜小蜂属二新种（膜翅目：蚜小蜂科）

红腹缢管蚜为陆稻的重要根部害虫,云南文山州发现其有效寄生天敌,经研究为蚜小蜂属２新种：文山蚜小蜂Ａｐｈｅｌｉｎｕｓ ｗｅｎｓａｎｕｓ ｓｐ．ｎｏｖ．及缢管蚜小蜂Ａｐｈｅｌｉｍｕｓ ｒｈｏｐａｄｏｓｉｐｈｉｐｈａｇｕｓ ｓｐ．ｎｏｖ．,本文详加描述、比较、并略论及中国蚜小蜂科概况,新种模式标本存北京农业大学昆虫标本馆。     

扁角跳小蜂二新种记述

本文座蜡蚧中育出的扁角跳小蜂二新种,即食红市区扁跳小蜂Ａｎｉｃｅｔｕｓ ｒｕｂｅｎｓｉ ｓｐ．ｎｏｖ．和毛扁角跳小蜂Ａｎｉｃｅｔｓ ｒａｒｉｓｅｔｕｒｓ ｓｐ．ｎｏｖ,前者育自红蜡蚧,后者育自日本蜡蚧、工蜡蚧和角蜡蚧。     

中国微翅缨小蜂属二新种记述(膜翅目:小蜂总科:缨小蜂科)

记述中国东北地区缨小蜂科Ｍｙｍａｒｉｄａｅ微翅缨小蜂属Ａｌａｐｔｕｓ Ｗｅｓｔｗｏｏｄ中的２新种;１）辽宁微翅缨小蜂,新种Ａｌａｐｔｕｓ ｌｉａｏｎｉｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．,新种雌性触角索节由正常的６节组成,这一特征与本属所有其它种类有明显区别;２）长尾微翅缨小蜂,新种Ａｌａｐｔｕｓ ｌｏｇｉｃａｕｄａｔｕｓ ｓｐ．ｎｏｖ,新种产卵器特别发达,此特征与Ａ．ｅｘｔｒｅｍｕｓ Ｓｏｙｋａ近似,     

中国犁沟茧蜂属四新种记述：膜翅目;茧蜂科：软节茧蜂亚科

本文报道犁沟茧蜂属Ａｕｌｏｓａｐｈｅｓ Ｍｕｅｓｅｂｅｃｋ４新种,即中华犁沟茧蜂Ａ．ｃｈｉｎｅｎｓｉｓ ｓｐ．ｎｏｖ,福建犁沟茧蜂Ａ;ｆｕｊｉａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,两色犁沟茧蜂Ａ．ｂｉｃｏｌｏｒ ｓｐ．ｎｏｖ。和缩颊犁沟茧蜂Ａ．ｃｏｎｓｔｒａｃｔｕｓ ｓｐ．ｎｏｖ。该属为我国新记录属。所有模式标本保存在浙江农业大学。     

伏牛山小蜂科二新种：膜翅目：小蜂总科

本文记述河南省伏牛山膜翅目小蜂总科小蜂科２新种：吉丁锥腹小蜂Ｔｒｉｇｏｎｕｒａ ｃｈｒｙｓｏｂａｔｈｒａ ｓｐ．ｎｏｖ．,青冈梳角小蜂Ｃｈｉｒｏｃｅｒａ ｇｌａｕｃａ ｓｐ．ｎｏｖ。２新种所隶属的属均为中国新记录属。新种的模式标本存在中国林业科学研究院森林保护研究所标本室。     

中国尖腹蛛属一新种记述：蜘蛛目：园蛛科

本文记述分布于我国陕西太白山的园蛛科Ａｒａｎｅｉｄａｅ尖腹蛛属Ａｃｕｌｅｐｅｒｉａ一新种,太白尖腹蛛Ａｃｕｌｅｐｅｒｉａｔａｉｂａｉｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．,模式标本分别保存河北教育学院和西安师范学院。     

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。     

中国平背叶蜂亚科二新属（膜翅目：叶蜂科）

本文记述中国平背叶蜂亚科二新属新种：扁角隙臀叶蜂Ｂｌｅｎｎａｌｌａｎｔｕｓ ｃｏｍｐｒｅｓｓｉｃｏｒｎｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,红胸宽背叶蜂Ａｌｌａｎｅｍｐｒｉａ ｒｕｆｉｔｈｏｒａｃｉｃａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．。隙臀叶蜂属Ｂｌｅｎｎａｌｌａｎｔｕｓ ｇｅｎ．ｎｏｖ．形态十分特殊：唇基三齿型;颚眼距长于单眼直径２倍,上颚对称双齿型;后颊脊全缘式;触角侧扁,１０节,基部２节宽显著大     

竹类害虫的六种寄生蜂及二新种记述（膜翅目：跳小峰科）

本文报导与竹类害虫有关的６种跳小蜂。长缘刷盾跳小蜂Ｃｈｅｉｌｏｎｅｕｒｕｓｃｌａｖｉｇｅｒ及优赛跳小蜂Ｅｕｓｅｍｉｏｎｃｏｒｎｉｇｅｒｕｍ,寄生竹巢粉蚧Ｎｅｓｔｉｃｏｃｃｕｓｓｉｎｅｎｓｉｓ的初寄生者花翅跳小蜂Ｍｉｃｒｏｔｅｒｙｓｓｐｐ．;瓢虫隐尾跳小蜂Ｈｏｍａｌｏｔｙｌｕｓｆｌａｍｉｎｉｕｓ,寄生黑缘光瓢虫Ｅｘｏｃｈｏｍｕｓ（Ｘａｎｔｈｏｃｏｒｎｓ）ｎｉｇｒｏｍａｒｇｉｎａｔｕｓ;白胫短缘跳小蜂Ｚａｏｍｍａｅｒｉｏｃｏｃｉ（Ｔａｃｈｉｋａｗａ）中国新记录,寄生竹巢粉蚧的初寄生者花翅跳小蜂;四斑长索跳小蜂ＡｎａｇｙｒｕｓｑｕａｄｒｉｍａｃｕｌａｔｕｓＸｕｅｔＨｅ,ｓｐ．ｎｏｖ,寄生竹绒粉蚧Ｅｒｉｏｃｏｃｃｕｓｔｒａｎｓｖｅｒｓｕｓ;长脉卵跳小蜂ＯｏｅｎｃｙｒｔｕｓｌｏｎｇｉｖｅｎｏｓｕｓＸｕｅｔＨｅ,ｓｐ．ｎｏｖ,寄生竹卵圆蝽Ｈｉｐｐｏｔｉｓｃｕｓｄｏｒｓａｌｉｓ。标本及模式标本保存在浙江农业大学寄生蜂标本室。     

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).