中国贞琵甲属昆虫及一新种记述(鞘翅目:拟步甲科)

对中国贞琵甲属Agnaptoria Reitter,1887进行了初步总结,描述西藏1新种：芒康贞琵甲Agnaptoria markama,sp．nov．,给出了贞琵甲属已知种检索表。模式标本保存于河北大学博物馆。     

中国琵甲属八新种（鞘翅目：拟步甲科：琵甲族）

记述中国琵甲属8新种：甘孜琵甲Blaps garzica,sp,nov,叉尾琵甲B.furcala,sp.nov。,太原琵甲B.taiyuanica,Sp,nov.,尖角琵甲B.acutangula,sp.nov., 周氏琵甲B.choui,sp.nov.,多毛琵甲Bpilosa,sp.,nov.,短体琵甲B.brevis,sp.nov和圆形琵甲B.ratalaria,sp,nov。模式标本保存在河北大学博物馆。     

中国琵甲族一新属二新种(鞘翅目：拟步甲科)

记述了鞘翅目拟步甲科琵甲族1新属2新种,即新琵甲属Neoblaps gen.nov.,会泽新琵甲N.huizensis sp.nov.;波密地琵甲Dila bomiana sp.nov.。列出了机关报属和新种与近缘属或种的视差鉴别特征或检索表,模式标本保存在河北大学博物馆。     

中国齿琵甲属昆虫及一新种记述(鞘翅目,拟步甲科,琵甲族)(英文)

对中国齿琵甲属Itagonia Reitter昆虫进行了整理,并记述中国西藏齿琵甲属1新种:巴宿齿琵甲I.baxoica sp.nov..列出了该属中国已知种检索表.模式标本保存于河北大学博物馆.     

宽额甲属分类研究(鞘翅目,拟步甲科)

对宽额甲属Ascelosodis昆虫进行了分类研究.描述采自中国西藏3新种,即小粒宽额甲A.granata sp.nov.,郑氏宽额甲A.zhengi sp.nov.和班戈宽额甲A.baingoinana sp.nov..给出了已知种名录和检索表.模式标本保存于河北大学博物馆.     

江苏泗洪下草湾中中新世脊椎动物群——6.鸟纲

本文记述了近年来在江苏泗洪下草湾组中补采到的6种鸟类,其中包括天岗琵鹭 Platalea tiangangensis sp. nov.和松林庄古石鸡 Palaeoalectoris songlinensis gen. et sp. nov.,前者系琵鹭属迄今最早的记录,后者为雉科鹑族目前已知最早的成员.     

黄山土壤甲螨三新种（蜱螨亚纲：甲螨亚目）

本记述了黄山甲螨三新种：多纹细珠甲螨Allodamaeus polygrammus. sp.nov.,顶盖细珠甲螨A.lectorius. sp.nov．和山地树穴甲螨Truncopes montanus,sp．nov．该中对新种的形态特征作了描述,并与近似种进行了比较．     

中国毒甲属分类研究(鞘翅目,拟步甲科,毒甲族)

记述中国毒甲属Toxicum 6新种:扁角毒甲T.planicornus sp.nov.,扁指毒甲T.digitatum sp.nov.,刀角毒甲T.gladicornus sp.nov.,尖角毒甲Toxicum angustum sp.nov.,突角毒甲T.horridus sp.nov.,斜角毒甲T.obliqucornum sp.nov..模式标本保存在河北大学博物馆.     

寡毛跳甲属中国种类(叶甲科,跳甲亚科)记述

记述了寡毛跳甲属Luperomorpha Weise的中国种类,共计27种,其中有6新种,新种为陈氏寡毛跳甲Luperomorpha cheni Wang et Ge,sp.nov.,光胸寡毛跳甲Luperomorpha glabricollis Wang et Ge,sp.nov.,广西寡毛跳甲Luperomorpha guangxiana Wang et Ge,sp.nov.,海南寡毛跳甲Luperomorpha hainana Wang et Ge,sp.nov.,膨梗寡毛跳甲Luperomorpha pedicelis Wang et Ge,sp.nov.,古铜寡毛跳甲Luperomorpha similimetallica Wang et Ge,sp.nov.。模式标本保存在中国科学院动物研究所昆虫标本馆。     

中国树栖拟步甲铜树甲属分类研究

对中国及其毗邻地区铜树甲属Ainu Lewis进行了系统整理,描述3新种:A.grandis sp nov(广西),A.angustus sp nov.(广西,四川)和A medogamnussp.nov(西藏墨脱).给出本属已知种目录和检索表.模式标本保存于河北大学博物馆.     

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.     

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