云南省棘蝇属四新种(双翅目:蝇科)

报道了采自云南省怒江流域的蝇科棘蝇Phaonia R.-D.4新种,分别命名为球棒棘蝇Phaonia bulbiclauvla sp.nov。,畸尾棘蝇Phaonia deformicauda sp.nov.泸水棘蝇Phaomia lushuiensis sp.nov,和豹爪棘蝇Phaonia pardiungula sp.nov。,隶属于4个不同种团,模式标本保存于沈阳师范学院昆虫研究所。     

山西省晋北地区棘蝇属四新种：双翅目：蝇科

整理1982—1986年采自山西省北部地区的有瓣蝇类标本中,于棘蝇属中发现四新种,命名为范氏棘蝇,新种Phaonia,fani sp.nov.;阳高棘蝇,新种Phaonia yonggaoensis sp.nov.;三条棘蝇,新种Phaonia tristriolata sp.nov.;亚山棘蝇,新种Phaonia submontana sp.nov.模式标本存于辽宁省卫生防疫站。     

中国四川(束束)蝇属一新种团及四新种(双翅目:蝇科)

记述分布于中国四川的棘蝇属Phaonia R.-D.,1830 1新种团：曲股棘蝇种团Phaonia blaesomera group nov.及4新种：曲股棘蝇Phaonia blaesomera sp.nov.:类半月棘蝇Phaonia semilunaroida sp.nov.:黑肩棘蝇Phaonia nigeritegula sp.nov.;黄胫棘蝇Phaonia helvitibia 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。     

云南棘蝇属三新种

报道了采自云南省的蝇科棘蝇属Phaonia R.-D.3新种， 分别命名为明斑棘蝇Phaonia luculentimacula s p.nov.、刺尾棘蝇Phaonia spinicauda sp.nov.和毛盾棘蝇Phaonia villiscute llata sp.nov.，均隶属于棕斑棘蝇种团Ph.fuscatagroup。模式标本保存于沈阳师范学院昆虫研究所。     

中国四川省有瓣蝇类三新种(双翅目:厕蝇科,蝇科)

报道采自中国四川省西部山区有瓣蝇类Calyptraae3新种：厕蝇科Fanniiade厕蝇属Fannia2新种：五枝厕蝇Fannia quinquiramula sp.nov.,虞氏厕蝇Fannia yui sp.nov.;蝇科Muscidae棘蝇属Phaonia 1新种：太子棘蝇Phaonia taizipingga sp.nov.。新种虞氏侧蝇的命名,系对虞以新教授在中国蠓科Ceratopogoinidae等医学昆虫研究所作杰出贡献的敬意。厕蝇科模式标本存中国沈阳师范学院昆虫研究所;蝇科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。     

云南棘蝇属二新种 (双翅目:蝇科)

报道云南省蝇科棘蝇属Phaonia R.D2种,分别命名为滇西棘蝇Phaonia dianxiia sp.nov.和极乐棘蝇Phaonia paradisia sp.nov.,均隶属于仿游荡棘蝇种团P.simulans-group中的褐基棘绳亚种团P.fuscicoxa-subgroup。模式标本保存于沈阳师范学院昆虫研究所。     

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。     

贵州省棘蝇属三新种记述（双翅目：蝇科）

本文记述采自贵州地区的棘蝇属Phaonia 3新种:变色棘蝇,新种Ph.varicolor sp.nov.宽阔水棘蝇,新种Ph.kuankuoshuiensis sp. nov.及曲叶棘蝇,新种Ph.curvicercalis sp.nov.。文中绘有各新种雄尾器特征图。     

中国棘蝇属二新种：双翅目：蝇科

1983年采自吉林省长白山和1984年采自四川省周公山的棘蝇属标本,发现游荡棘蝇种团(erransgroup)中两个新种。命名为拟游荡棘蝇,新种 Phaonia mimerrans Ma,sp.nov.和次游荡棘蝇,新种Phaonia suberrans Feng,sp.nov.。前者与游荡棘蝇 Phaonia,errans(Meigen,1826)极近似,但新种的额较宽,间额明显;前陉有2—3个中位后鬃,可以区别,后者的后气门前肋裸,体大型,第一腹板裸,侧颜较狭等特征,可与本种团其他各种(errans,pseudoerrans Hennig,1963,asierrans Zinovjev,1981及mimerrans Ma,sp.nov.)区别。     

四川棘蝇属一新种（双翅目：蝇科）

本文报道四川棘蝇属一新种:蒙山棘蝇,新种Phaonia mengshanensis sp.nov.。模式标本存于四川省雅安地区卫生防疫站。     

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.     

Entwicklungsgeschichte und Ultrastruktur von Pollenkitt und Exine bei nahe verwandten entomophilen und anemophilen Angiospermensippen derAlismataceae,Liliaceae, Juncaceae,Cyperaceae, Poaceae undAraceae

Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout.

     

Identification and Characterization of the First Equine Parainfluenza Virus 5

正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various