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1.
记述中国中沟细蜂属 Parthenocodrus Pschorn-Walcher 5种,其中包括4新种:梵净山中沟细蜂P.fanjingshanensis He et Xu,sp.nov.、褐足中沟细蜂P.fu scipes He et xu,sp.nov.、鼓鞭中沟细蜂P.tumidiflagellum He et ...  相似文献   

2.
记述了我国细蜂科叉齿细蜂属Exallonyx 叉齿细蜂亚属Exallonyx的环柄细蜂种团cingulatus-group 2新种:强脊叉齿细蜂Exallonyx firmus sp.nov.和无凹叉齿细蜂Exallonyx exfoveatus sp.nov..描述了其形态特征并与近似种做了比较.模式标本存于浙江大学寄生蜂标本室.  相似文献   

3.
记述了我国脊额细蜂属6种,其中2新种:卜氏脊额细蜂P.buisp.nov.和黑胫脊额细蜂P.nigritibialis sp.nov.;2新纪录种:冠脊额细蜂P.cristatus Townes et Townes和点柄脊额细蜂P.punctibasis Townes et Townes;新种和新纪录种均附有详细特征图,并编制了我国脊额细蜂属分种检索表。模式标本保存于浙江大学膜翅目寄生蜂标本馆(ZJUH)。  相似文献   

4.
中国叉齿细蜂属网腰细蜂种团二新种记述(膜翅目:细蜂科)   总被引:1,自引:1,他引:0  
记录我国叉齿细蜂属Exallonyx叉齿细蜂亚属Exallonyx网腰细蜂种团dictyotus-group2新种:采自陕西和浙江的黑唇叉齿细蜂Exallonyxnigrolabius,sp.nov.和采自贵州的短脊叉齿细蜂Exallonyxbrevicarinus,sp.nov.。模式标本保存于浙江大学寄生蜂标本室。  相似文献   

5.
记述中国短细蜂属Brachyserphus Hellén 5种,其中包括4新种:周氏短细蜂Brachyserphus choui He et Xu,sp.nov.、天目山短细蜂Brachyserphus tianmushanensis He et Xu,sp.nov.、贵州短细蜂Brachyserphus guizho...  相似文献   

6.
中国细蜂族一新属一新种(膜翅目:细蜂科)   总被引:2,自引:1,他引:1  
细蜂科Serphidae的细蜂族Serphini主要特征为:盾纵沟缺或不明显仅由一浅洼痕显出;腹部通常具柄(除无翅细蜂属Paracodrus);上颚常具1齿(中沟细蜂属Parthenocodrus具2齿);后胸侧板前方的无刻皱区通常小于侧板的0.35倍;前翅长约为宽的3.0倍,翅有时退化为短翅型或缺如;第一盘室和第二盘室愈合,但肿额细蜂属Codrus有时例外;并胸腹节背表面中等长至长。该族已记载有7个属,我国已知有5个属,但有1属没有种的报道。据记载大多种类寄生于甲虫幼虫,特别是隐翅虫科Staphilinidae、步甲科Carabidae和叩甲科Elateridae;还有1种曾从蜈蚣Lithobius中养出。  相似文献   

7.
首次报道柄脉细蜂属Mischoserphus在我国发现,并记述2种,其中1新种:中华柄脉细蜂Mischoserphus sinensis,sp.nov.和1中国新记录种:佐村柄脉细蜂Mischoserphus samurai(Pschorn-Walcher)。描述了其形态特征并与近似种做了比较。模式标本保存于浙江大学寄生蜂标本室。  相似文献   

8.
本文记述在我国河南省伏牛山发现的细蜂科Proctotrupidae细蜂亚科Proctotrupinae 1新属新种:中华强脊细蜂Carinaserphus sinensis gen. et sp. nov.。描述了其形态特征并与近似属做了比较。模式标本存浙江大学寄生蜂标本室。  相似文献   

9.
何俊华  储吉明 《昆虫学报》1990,33(1):102-104
离颚细蜂亚科Vanhorniinae隶于细蜂总科Serphoidea细蜂科Serphidae,是一种十分珍异的蜂类,全世界仅知2属4种,即离颚细蜂属Vanhornia 2种,分别产于美国和瑞典;卵腹细蜂属Heloriserphuas 2种,均产于智利。本文记述从贵州省采到的一新属新种。该亚科在我国和东洋区也是首次报道。模式标本存浙江农业大学生物防治研究室。 华颚细蜂属Sinicivanhornia新属 模式种:贵州华颚细蜂Sinicivanhornia quizhouensis新种。 上颊很宽;后头脊中央稍下凹;上颚极宽,具4个三角形的齿,齿尖更偏向下方,两上  相似文献   

10.
首次记述锤角细蜂亚科Diapriinae 1中国新记录属--长痣锤角细蜂属Entojmacis Foerster,1856,并记述该属1新种:巾华长痣锤角细蜂 Entomacissinensis,sp,nov..模式标本保存于华南农业大学昆虫标本室.  相似文献   

11.
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.  相似文献   

12.
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  相似文献   

13.
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.  相似文献   

14.
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16.
鸡传染性法氏囊病病毒研究进展   总被引:3,自引:0,他引:3  
闫笑  李天宪 《中国病毒学》2003,18(2):191-195
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.  相似文献   

17.
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.  相似文献   

18.
Shen  Jia-Yuan  Li  Man  Xie  Lyu  Mao  Jia-Rong  Zhou  Hong-Ning  Wang  Pei-Gang  Jiang  Jin-Yong  An  Jing 《中国病毒学》2021,36(1):145-148
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).  相似文献   

19.
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.  相似文献   

20.
Rasmussen’s encephalitis (RE) is a rare pediatric neurological disorder, and the exact etiology is not clear. Viral infection may be involved in the pathogenesis of RE, but conflicting results have reported. In this study, we evaluated the expression of both Epstein-Barr virus (EBV) and human herpes virus (HHV) 6 antigens in brain sections from 30 patients with RE and 16 control individuals by immunohistochemistry. In the RE group, EBV and HHV6 antigens were detected in 56.7% (17/30) and 50% (15/30) of individuals, respectively. In contrast, no detectable EBV and HHV6 antigen expression was found in brain tissues of the control group. The co-expression of EBV and HHV6 was detected in 20.0% (6/30) of individuals. In particular, a 4-year-old boy had a typical clinical course, including a medical history of viral encephalitis, intractable epilepsy, and hemispheric atrophy. The co-expression of EBV and HHV6 was detected in neurons and astrocytes in the brain tissue, accompanied by a high frequency of CD8+ T cells. Our results suggest that EBV and HHV6 infection and the activation of CD8+ T cells are involved in the pathogenesis of RE.  相似文献   

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