中国四川厕蝇属六新种(双翅目,厕蝇科)

记述厕蝇科厕蝇属6新种,分别命名为:拟明厕蝇Fannia similiserena sp.nov.,巨斑厕蝇Fannia maximiguttatus sp.nov.,铗叶厕蝇Fannia labidocerca sp.nov.,毛簇厕蝇Fannia dasytophacela sp.nov.,毛胫厕蝇Fannia hirtitibia sp.nov.和长跗厕蝇Fannia tanotarsis sp.nov..模式标本保存于沈阳师范大学昆虫研究所.     

中国真叶蝇属六新种及中国种类检索表（双翅目：叶蝇科）

记述中国真叶蝇属6新种:短须真叶蝇P.brevipalpis sp.nov.,瘤突真叶蝇P.gangliiformisa sp.nov.,李氏真叶蝇P.lii sp.nov.,长毛真叶蝇P.longisetae sp.nov.,黑腹真叶蝇P.melanogastera sp.nov.和黑缘真叶蝇P.nigrimarginata sp.nov.,编制了本属中国种类的检索表.     

中国四川粉蝇族五新种记述(双翅目,丽蝇科,丽蝇亚科)

记述中国粉蝇族Polleniini(丽蝇科,丽蝇亚科)5新种,分别为二郎山粉蝇Pollenia erlangshanna sp.nov.,四川粉蝇Pollenia sichuanensis sp. nov.,伪黑尾金粉蝇Xanthotryxus pseudomelanurus sp.nov.,长阳墨粉蝇Morinia proceripenisa sp.nov.,橙黄瘦粉蝇Dexopollenia aurantifulva sp. nov..模式标本保存于中国科学院上海生命科学研究院植物生理生态研究所.     

河北大学博物馆馆藏迷食蚜蝇亚科分类研究(双翅目,食蚜蝇科)

在系统整理河北大学博物馆馆藏食蚜蝇科Syrphidae昆虫标本的基础上,鉴定出中国迷食蚜蝇亚科Milesiinae 9族,21属37种,其中9新种:红腹柄角蚜蝇Monoceromyia rufipetiolata sp.nov.、暗红黑蚜蝇Cheilosia erubescense sp.nov.、樟木黑蚜蝇Cheilosia zhangnuensis sp.nov.、北方管蚜蝇Eristalis borealis sp.nov.、无斑管蚜蝇Eristalis immaculatis sp.nov.、漠河管蚜蝇Eristalis mohensis sp.nov.、郑氏管蚜蝇Eristalis zhengi sp.nov.、黄绿毛管蚜蝇Mallota viridiflavescentis sp.nov.、四川蜂蚜蝇Volucella sichuanensis sp.nov..新种正模标本保存于河北大学博物馆,副模标本保存于陕西理工学院陕西省资源生物重点实验室.     

新疆阳蝇属四新种(双翅目:蝇科)

报告采自新疆蝇科阳蝇属Helina R.-D.4新种,即眼鬃阳蝇Helina ocellijuba sp.nov.,粘叶阳蝇Helina mallocerca sp.nov.,狭跗阳蝇Helina stenotarsis sp.nov.和板刺阳蝇Helina sterniteoacaena sp.nov.。模式标本保存于中国科学院动物研究所。     

中国四川阳蝇属五新种(双翅目:蝇科)

报告采自四川西部山区的蝇科阳蝇属HelinaR.-D.五新种,即：亚喜密阳蝇Helina subevecta sp.nov,阳阳蝇Helina solata sp.nov,用公山阳蝇Helina zhougongshanna sp.nov,康定阳蝇Helina kangdingen-sis sp.nov和赘脉阳蝇Helina appendicivena sp.nov。模式标本保存于中国军事医学科学院微生物流行病研究所医学昆虫标本馆。     

中国四川西部蝇科五新种（双翅目）

记述采用四川西部山区蝇科5新种：黄肩妙蝇Myospila flavihumera,sp.nov。炎黄肩妙蝇Myospila flavihumeroides,sp.nov.,大雄棘蝇Phaonia daxiongi,sp.nov,,盾叶阳蝇Helina aspidocerca,sp.nov。及世纪阳蝇Helina shijia,sp.nov,模式标本存北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

中国妙蝇属五新种(双翅目:蝇科)

报道分布于中国蝇科妙蝇属（Myospila Rondani,1856）的5新种：百色妙蝇（M.boseica sp．nov．）;棕色妙蝇（M.brunnea sp.nov.）;黑股妙蝇（M.nigrifemura sp．nov．）;拟双色妙蝇（M.binoides sp．nov．）;天目妙蝇（M.tiamushanica sp．nov．）。模式标本存北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

中国阳蝇属四新种(双翅目,蝇科)

记述蝇科Muscidae棘蝇亚科Phaoniinae中的阳蝇属Helina Robineau-Desvoidy,1830 4新种:西北阳蝇H.borehesperica sp.nov.,兴凯阳蝇H.xingkaihuica sp.nov.,毛尾阳蝇H.dasyouraea sp.nov.和锐叶阳蝇H.acocerca sp.nov..模式标本保存于军事医学科学院微生物流行病研究所医学昆虫标本馆.     

四川省阳蝇属五新种（双翅目：蝇科）

记述采自中国四川西部山区阳蝇属Helina R.-D.,1980的5新种,分别命名为金阳蝇Helina aureolicolorata,sp.nov.;羽胫阳蝇Helina plumipostitibia,sp.nov.;茂汶阳蝇Helina maowenna,sp.nov.;雨阳蝇Helina hyeta,sp.nov.;类介阳蝇Helina mimintermedia,sp.nov.。模式标本存北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

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.