共查询到20条相似文献,搜索用时 62 毫秒
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.
报遭窄腹细蜂属Ropronia Provancher 2 新种:梵净山窄腹细蜂R.fanjingshanensis He et Chen.sp.nov.和双斑窄腹细蜂R.bimaculata He et Chen,sp.nov。均采自贵州省。描述了形态特征并与近似种做了比较。模式标本保存于杭州浙江大学植物保护系寄生蜂标本室。 相似文献
3.
4.
5.
6.
本记述采自云南昆明的小腹茧蜂属Microgaster Latreille一新种,云南小腹茧蜂Microgaster yunnanensis Xu et He,sp nov. 相似文献
7.
辽西义县组细蜂总科(昆虫纲,膜翅目)昆虫化石 总被引:4,自引:0,他引:4
描述了产自辽宁北票上园地区黄半吉沟上株罗统义县组下部细蜂总科(Proctotrupoidea)昆虫化石10属12种,其中8属12新种,这些化石分属于3科,其中Gurvanotrupes stolidus sp.nov.,Gurvanotrupes exiguus sp.nov.,Liaoserphus perarus gen.et sp.no.,alloserphus saxosus gen.et sp.nov.,Scalprogaster fossilis gen.et sp.nov.,steleoserphus beipiaoensis gen.et sp.nov.,Saucrotrupes decorosus gen.et sp.nov和Ocnoserbphous sculptus gen.et sp.nov.归入细蜂科(Serphidae=Proctotrupidae);Protocyrtus validus sp.nov.和Spherogaster cornoata gen.et sp,nov。归入柄腹细蜂科(heloridae);Liaoropronia leonina gen.et sp.nov和Liaoropronia regia gen.et sp.nov.归入窄腹细蜂科(Roproniidae),对我们中生代细蜂总科化石的研究状况作了回顾。 相似文献
8.
黑龙江侧沟茧蜂属-新种记述(膜翅目:茧蜂科:小腹茧蜂亚科) 总被引:4,自引:1,他引:3
本记述采自黑龙江的侧沟茧蜂属Microplitis Foerster一新种,杨二尾舟蛾侧沟茧蜂Microplitis menciana Xu et He,sp nov.。 相似文献
9.
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
10.
首次报道曲柄锤角细蜂属Vadana Rajmohana et Narendran,2000在我国分布,并记述采自广东的1新种:皱胸曲柄锤角细蜂Vadana rugosa,sp.nov..模式标本保存在华南农业大学膜翅目标本室.皱胸曲柄锤角细蜂Vadana rugosa,新种(图1~4)本新种与分布于印度的Vadana ... 相似文献
11.
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
12.
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
13.
14.
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
15.
16.
Meng Miao Gang Deng Xiaobei Xiong Yang Qiu Wenda Huang Meng Yuan Fei Yu Shimei Bai Xi Zhou Xiaolu Zhao 《中国病毒学》2022,37(2):314-317
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
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
17.
Dong Liu Xin Wang Yisong Wang Peigang Wang Dongying Fan Sichang Chen Yuguang Guan Tianfu Li Jing An Guoming Luan 《中国病毒学》2018,33(5):402-409
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
18.
19.
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
20.
Renfei Lu Xiuming Wu Zhenzhou Wan Yingxue Li Lulu Zuo Jianru Qin Xia Jin Chiyu Zhang 《中国病毒学》2020,35(3):344-347
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