中国角腹蚁属分类研究及一新种记述（膜翅目∶蚁科）

本文记述华南地区角腹蚁属１新种,光亮角腹蚁Ｒｅｃｕｒｖｉｄｒｉｓ ｇｌａｂｒｉｃｅｐｓ ｓｐ．ｎｏｖ．。新种与皮克氏角腹蚁Ｒ．ｐｉｃｋｂｕｒｎｉ Ｂｏｌｔｏｎ相似,但有如下不峭：头部及前胸背板光亮;并胸腹节刺较粗;结节具长的腹柄下突。文中还提供我国已知３种角腹蚁工蚁分种检索表,新种正模标本保存于广西师范大学生物系,副模标本保存于嘉道理农场暨植物园和广西师范大学生物系。     

中国角腹蚁属分类研究及一新种记述(膜翅目: 蚁科)

本文记述华南地区角腹蚁属 1新种 ,光亮角腹蚁 Recurvidris glabricepssp.nov.。新种与皮克氏角腹蚁 R.pickburni Bolton相似 ,但有如下不同 :头部及前胸背板光亮 ;并胸腹节刺较粗 ;结节具长的腹柄下突。文中还提供我国已知 3种角腹蚁工蚁分种检索表。新种正模标本保存于广西师范大学生物系 ,副模标本保存于嘉道理农场暨植物园和广西师范大学生物系。     

中国厚结蚁属分类研究（膜翅目：蚁科：猛蚁亚科）

本文记述中国厚结蚁属ＰａｃｈｙｃｏｎｄｙｌａＦ．Ｓｍｉｔｈ昆虫１５种,其中描述２新种：片突厚结蚁Ｐ．ｌｏｂｏｃａｒｅｎａ新种和郑氏厚结蚁Ｐ．ｚｈｅｎｇｉ新种。还报道２个中国新记录种,并根据该属的现代概念对１０个种作了重新组合。模式标本保存于云南昆明,西南林学院森林保护系昆虫标本室。     

湖北蚁科二新种记述(膜翅目,蚁科)

记述了采自湖北省的蚁科昆虫2新种,即九宫山凹头臭蚁Phildris jiugongshanensis sp.nov.和七齿前结蚁Prenolepis septemdenta sp.nov．。文中提供了凹头臭蚁属Philidris Shattuck和前结蚁属Prenlepis Mayr在我国所有种的检索表。新种模式标本保存于湖北民族学院昆虫标本室。     

广西大头蚁属分类研究及三新种记述(膜翅目:蚁科)(英文)

记述广西大头蚁属昆虫１３种,其中３新种,即奇大头蚁Ｐ．ａｐｈｒａｓｔａｓｐ．ｎｏｖ．,长柄大头蚁Ｐ．ｌｏｎｇｉｓｃａｐａｓｐ．ｎｏｖ．和淡黄大头蚁Ｐ．ｆｌａｖｅｒｉａｓｐ．ｎｏｖ．,中国１新纪录种费氏大头蚁Ｐ．ｆｅａｅＥｍｅｒｙ,提出１新地位种香港大头蚁Ｐ．ｈｏｎｇｋｏｎｇｅｎｓｉｓＷｈｅｅｌｅｒ,ｎｅｗｓｔａｔｕｓ。新种奇大头蚁与香港大头蚁近似,主要不同为头部刻纹,尤其是头部的奇特形状,即不仅头顶具横形凹陷,头侧也具斜形凹陷。新种长柄大头蚁与阿伦大头蚁Ｐ．ａｌａｎｉＢｉｎｇｈａｍ相似,不同之处为：唇基具中脊;唇基前缘凹陷;第１结节上缘完整。此外,小型工蚁触角极长,柄节比达１６４～１６７,在同属各种中也是少见的。新种淡黄大头蚁与兴起湖大头蚁Ｐ．ｆｕｎｋｉｋｏｅｎｓｉｓＷｈｅｅｌｅｒ相似,主要区别为大型工蚁头长大于宽;唇基不具中脊;小型工蚁后头缘具粗大网状刻纹。后一特征可与同属中大多数种类相区别。新种正模标本保存于陕西师范大学动物研究所,副模标本及其余研究标本保存于广西师范大学生物系。     

中国西南地区曲颊猛蚁属一新种（膜翅目：蚁科：猛蚁亚科）

本文记述中国西南地区曲颊猛蚁属Ｇｎａｍｐｔｏｇｅｎｙｓ　Ｒｏｇｅｒ１新种──版纳曲颊猛蚁Ｇ．ｂａｎｎａｎａ,ｓｐ．ｎｏｖ．,本新种与双色曲颊猛蚁Ｇ．ｂｉｃｏｌｏｒ（Ｅｍｅｒｙ）接近,但前者后头角向后延长成叶状突;头、胸、腹柄和腹部第１节具粗糙窝状刻纹;头和足黑色。文中提供了该属中国已知５种的检索表。模式标本保存于陕西师范大学动物研究所昆虫标本室。     

云南猛蚁属四新种记述（膜翅目：蚁科）

记述云南高黎贡山自然保护区猛蚁属 4新种。至此已在中国记载猛蚁属昆虫 12种 :中华猛蚁 P. sinensis Wheeler,阿里山猛蚁 P. alisana Terayama,知本猛蚁 P. chipo-nensis Terayama,五齿猛蚁 Ponera pentodontos Xu,勐腊猛蚁 Ponera menglana Xu,南贡山猛蚁 Ponera nangongshana Xu,龙林猛蚁 Ponera longlina Xu,巴卡猛蚁 Ponera ba-ka Xu,黄色猛蚁 Ponera xantha,sp. nov.,坝湾猛蚁 Ponera bawana,sp. nov.,二齿猛蚁 Ponera diodonta,sp. nov.、片马猛蚁 Ponera pianmana,sp. nov.。编制了中国猛蚁属 12种工蚁分种检索表并附插图。模式标本保存于西南林学院资源学院昆虫标本室。新种示差鉴别特征及模式标本情况如下 :1.黄色猛蚁 Ponera xantha,新种 (图 13～ 15 )本新种近似巴卡猛蚁 P. baka Xu (图 10～ 12 ) ,但背面观腹柄结近三角形 ,长宽相等 ;侧面观腹柄下突后下缘无齿。正模 :工蚁 ,No.A97- 2 70 ,云南省腾冲县界头乡大营 ,2 0 0 0 m,1999- V- 0 2 ,付磊采于中山湿性常绿阔叶林内2.坝湾猛蚁 Ponera bawana,新种 (图 19～ 2 1)本新种近似日本猛蚁 P. japonica Wheeler(图 37～ 39) ,但头部正面观头侧缘较直 ,后头角较突出 ;并胸腹节背面长于斜面 ;腹柄下突后下缘仅具 1微小的齿 ,窗孔小而圆。正模     

中国扁胸切叶蚁属一新种及红蚁属一新纪录种(膜翅目,蚁科)

报道了采自湖北西部地区的扁胸切叶蚁属1新种和红蚁属中国1新纪录种,即亮颚扁胸切叶蚁Vollenhovialucimandibula sp.nov.和乌尔班红蚁Myrmica urbanii Radchenko et Elmes.新种与埃氏扁胸切叶蚁V.emeryi Wheeler相似,但新种身体黑褐色,第2结节背面具密集粗糙刻点,上颚光亮无刻点.模式标本保存于湖北民族学院昆虫标本室.     

扁胸切叶蚁属一新种：膜翅目：蚁科

扁胸切叶以属(Vollenhovia Mayr)昆虫分布于亚洲、大洋洲及非洲的塞舌尔群岛,通常生活于树木洞穴或朽木中。扁胸切叶蚁为捕食性昆虫,捕食等翅目、双翅目和鳞翅目成虫和幼虫。该属全世界记载有61种,我国仅记载了分布于台湾的1种,即台湾扁胸切叶蚁Vollenhovia satoi Santschi。现增加1新种,分布于湖南省南部。模式标本保存于中国林业科学研究院林业研究所昆虫标本馆。     

中国红蚁属一新种记述(膜翅目,蚁科)

描述陕西佛坪红蚁属1新种,即郑氏红蚁Myrmica zhengi sp.nov.。新种体色极浅;头部正面观方形;前中胸背板刻纹横形,但极不规则;并胸腹节刺粗壮,基部宽;后腹第1节背板基侧具明显细纵刻纹与近似种类相区别。模式标本保存于陕西师范大学动物研究所,副模标本分存于广西师范大学生命科学学院、西北农林科技大学昆虫博物馆、东北师范大学生命科学学院和西南林业大学标本馆昆虫标本室。     

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).