浙江省秽蝇属四新种：双翅目：蝇科

本文记述浙江省庆元地区百山祖山区产蝇科四新种,分别命名为葫尾秽蝇Ｃｏｅｎｏｓｉａ ｌａｇｅｎｉｃａｕｄａ ｓｐ．ｎｏｖ．,匙叶秽蝇Ｃｏｅｎｏｓｉａ ｓｐａｔｕｌｉｓｆｏｒｃｅｐｓ ｓｐ．ｎｏｖ．大秽蝇Ｃｏｅｎｏｓｉａ ｇｒａｎｄｉｓ ｓｐ．ｎｏｖ．和山栖秽蝇Ｃｏｅｎｏｓｉａｗ ｍｏｎｔｉｃｏｌａ ｓｐ．ｎｏｖ。等。     

四川西部秽蝇族四新种

本文报道四川秽蝇亚科Ｃｏｅｎｏｓｉｉｎａｅ秽蝇族 Ｃｏｅｎｏｓｉｉｎｉ４新种；短指秽蝇，新种Ｃｏｅｎｏｓｉａ ｂｒａｃｈｙｏｄａｃｔｙｌａ ｓｐ．ｎｏｖ．；虎爪溜芒蝇，新种Ｃａｒｉｃｅａ ｕｎｇｕｌｉｔｉｇｒｉｓ ｓｐ．ｎｏｖ．；后侧叶溜芒蝇，新种Ｃａｒｉｃｅａ ｐｏｓｔｉｆｏｌｉｆｅｒａ ｓｐ．ｎｏｖ；寒溜芒蝇，新种Ｃａｒｉｃｅａ ｆｒｉｇｉｄａ ｓｐ．ｎｏｖ。模式标本存沈阳师范学院昆虫研究所。     

中国秽蝇属二新种（双翅目：蝇科）

本文记述分别采自山西和陕西的秽蝇属２新种：斑股秽蝇Ｃｏｅｎｏｓｉａ ｐｕｎｃｔｉｆｅｍｏｒａｔａ ｓｐ．ｎｏｖ．和太白山秽蝇Ｃｏｅｎｏｓｉａ ｔａｉｂａｉｓｈａｎｎａ ｓｐ．ｎｏｖ．。模式标本分别保存于沈阳师范学院生物系和西北农业大学昆虫博物馆。     

中国厕蝇属一新种记述(双翅目:厕蝇科)

记述采自浙江龙王山蝇属一新种,三叉厕蝇Ｆａｎｎｉａ ｔｒｉａｅｎｏｃｅｒａｃａ Ｘｕｅ ｅｔ Ｙａｎｇ,ｓｐ．ｎｏｖ．新种与裂叶厕蝇Ｆａｎｎｉａ ｓｃｉｓｓｉｆｏｌｉａ Ｘｕｅ,Ｗａｎｇ ｅｔ Ｈｕａｎｇ,１９９７近似,但是复眼具明显疏长发,前胫县１亚中位前背景,肛尾叶中在分三叉,分村中中间交长的１／２,侧尾叶上侧突内缓小刺在端部,下估侧面观较细长县无毛等特征可区别。正模♂,浙江龙王山１９９６－０     

中国有瓣蝇类三新种：（双翅目：丽蝇科,蝇科）

本文报道采自中国四川的瓣蝇类丽蝇科蜗蝇属Ｍｅｌｉｎｄａ Ｒｏｂｉｎｅａｕ－Ｄｅｓｖｏｉｄｙ １新种：端钩蜗蜗Ｍｅｌｉｎｄａ ａｐｉｃｉｈａｍａｔａ ｓｐ．ｎｏｖ;蝇科移属Ｃｏｅｎｏｓｉａ Ｍｅｉｇｅｎ２新种：黑杂移蝇Ｃｏｅｎｏｓｉａ ｎｉｇｒｉｍｉｘｔａ ｓｐ．ｎｏｖ,黄杂移蝇Ｃｏｅｎｏｓｉａ ｆｌａｒｉｍｉｘｔａ ｓｐ．ｎｏｖ。模式标本保存于沈阳师范学院昆虫研究所。     

中国棘蝇属二新种（双翅目：蝇科）

本文报道了采自中国贵州省梵净山的棘蝇属Ｐｈａｏｎｉａ Ｒｏｂｉｎｅａｕ－Ｄｅｓｖｏｉｄｙ,１８３０二新种：拱腹棘蝇Ｐ．ａｒｃｕａｔｉｃａｕｄａ Ｃｈｅｎ ｅｔ Ｘｕｅ,ｓｐ．ｎｏｖ．,板齿棘蝇Ｐ．ｌａｍｉｎｉｄｅｎｔａ Ｘｕｅ ｅｔ Ｃｕｉ,ｓｐ．ｎｏｖ．。模式标本保存于沈阳师范学院生物系。     

中国厕蝇属二新种记述

本文记述分别采自山西省和湖南省厕蝇属２新处,多突厕蝇Ｆａｎｎｉａ ｐｏｌｙｓｔｙｌａｔａ Ｗａｎｇ ｅｔ Ｘｕｅ,ｓｐ．ｎｏｖ,新种与Ｆａｎｎｉａ ｆｕｓｃｉｎａｔａ Ｃｈｉｌｌｃｏｔｔ,９１６１近缘,但触角街道经节长为宽的２．５倍,盾片具暗褐色纵条,前中鬃呈２列,腋瓣淡黄色,产股、胫节黄色,后股无后复鬃列等中区别。正模,山西省沁水,１９９１－０６－１６,王明福采,裂叶厕蝇Ｆａｎｎａｓｃｉｓｓｉｆ     

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。     

中国刺中属半月棘蝇种团及三种记述（双翅目：蝇科）

报道采自四川地区棘蝇属Ｐｈａｏｎｉａ Ｒｏｂｉｎｅａｕ－Ｄｅｓｖｉｄｙ,１８３０半月棘蝇种团Ｐｈａｏｎｉａ ｓｅｍｉｌｕｎａｒａ ｇｒｏｕｐ及３种新：半月棘蝇Ｐｈａｏｎｉａ ｓｅｍｉｌｕｎａｒａ Ｆｅｎｇ,ｓｐ．ｎｏｖ．,亚半月棘蝇Ｐｈａｏｎｉａ ｓｕｂｓｅｍｉｌｕｎａｒａ Ｆｅｎｇ,ｓｐ．ｎｏｖ．及宝麟棘蝇Ｐｈａｏｎｉａ ｂａｏｌｉｎｉ Ｆｅｎｇ,ｓｐ．ｎｏｖ．。模式标本存北京军事医学科学院医学     

齿股蝇属一新种和一新亚种记述：（双翅目：蝇科）

作者在整理我国内蒙古和东北地区采集的蝇科标本,发现齿股蝇属Ｈｙｄｒｏｔａｅａ Ｒ．－Ｄ．,１９３０中一新种和一新亚种。昭盟齿股蝇Ｈｙｄｒｏｔａｅａ ｚｈａｏｍｅｎｇａ Ｘｕｅ,ｓｐ．ｎｏｖ．和长白齿股蝇Ｈｙｄｒｏｔａｅａ ｓｃａｍｂｕｓ ｃｈａｎｇｂａｉｅｎｓｉｓ ｓｓｐ．ｎｏｖ．模式标本存于沈阳师范学院昆虫研究所。     

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