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Sequencing and comparison of the Rickettsia genomes from the whitefly Bemisia tabaci Middle East Asia Minor I

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Insect Science 2016年第4期23卷 531-542页

作者： Dan-Tong Zhu wen-qiang xia Qiong Rao Shu-Sheng Liu Murad Ghanim xiao-Wei Wang Ministry of Agriculture Key Laboratory of Agricultural Entomology Institute of Insect Sciences Zhejiang University Hangzhou China Department of Entomology Agricultural Research Organization The Volcani Center Bet Dagan Israel School of Agriculture and Food Science Zhejiang Agriculture and Forestry University Lin'an Hangzhou China

The whitefly, Bemisia tabaci, harbors the primary symbiont ＇Candidatus Portiera aleyrodidarum＇ and a variety of secondary symbionts. Among these secondary symbionts, Rickettsia is the only one that can be detected both inside and outside the bacteriomes. Infection with Rickettsia has been reported to influence several aspects of the whitefly biology, such as fitness, sex ratio, virus transmission and resistance to pesticides. However, mechanisms underlying these differences remain unclear, largely due to the lack of genomic information of Rickettsia. In this study, we sequenced the genome of two Rickettsia strains isolated from the Middle East Asia Minor 1 （MEAM1） species of the B. tabaci complex in China and Israel. Both Rickettsia genomes were of high coding den- sity and AT-rich, containing more than 1000 coding sequences, much larger than that of the coexisted primary symbiont, Portiera. Moreover, the two Rickettsia strains isolated from China and Israel shared most of the genes with 100% identity and only nine genes showed sequence differences. The phylogenetic analysis using orthologs shared in the genus, inferred the proximity of Rickettsia in MEAM1 and Rickettsia bellii. Functional analysis revealed that Rickettsia was unable to synthesize amino acids required for complementing the whitefly nutrition. Besides, a type IV secretion system and a number of virulence- related genes were detected in the Rickettsia genome. The presence of virulence-related genes might benefit the symbiotic life of the bacteria, and hint on potential effects of Rickettsia on whiteflies. The genome sequences of Rickettsia provided a basis for further understanding the function of Rickettsia in whiteflies.

关键词： Bemisia tabaci comparison endosymbiont genome Rickettsia symbiosis

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并网型直流微电网主动协调控制方法研究

电工电能新技术 2017年第6期36卷 30-38页

作者：杜少飞谢文超朱永强文俊夏瑞华新能源电力系统国家重点实验室华北电力大学北京102206

本文设计了一种应用于并网型直流微电网的主动协调控制方法。该方法将并网型直流微电网中的微源分为三类基本控制节点,设定了各类节点的控制目标。在运行模式切换时,各节点能够根据事先约定的控制规则和控制目标主动调整自身的控制模式... 详细信息

本文设计了一种应用于并网型直流微电网的主动协调控制方法。该方法将并网型直流微电网中的微源分为三类基本控制节点,设定了各类节点的控制目标。在运行模式切换时,各节点能够根据事先约定的控制规则和控制目标主动调整自身的控制模式,以维护直流微电网系统的运行特性。在PSCAD/EMTDC上,搭建了典型的直流微电网仿真模型,并对该控制方法进行仿真分析。结果表明,在分布式电源或负荷功率波动以及储能达到容量限定值等各种工作状态下,各微源换流器均可做出快速响应,保证了并网型直流微电网供电的可靠性和稳定性。

关键词：并网型直流微电网主动协调控制节点划分

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑Life Lithium Metal Batteries

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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-Min Qin Zhongliang Li wen‑xia Su Jia‑Min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang Li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

Based on non-targeted metabolomics for differential components screening of Rosae Chinensis Flos and Rosae Rugosae Flos and their quality evaluation

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Traditional Medicine Research 2025年第2期10卷 1-15页

作者： Xu Liang Ni-Hui Zhang Zhi-Lai Zhan Guang-Lu Chang Yan Gao xia Li wen-Yuan Gao School of Pharmaceutical Science and Technology Faculty of MedicineTianjin UniversityTianjin 300193China State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs China Academy of Chinese Medical SciencesBeijing 100700China Key Laboratory of Modern Chinese Medicine Resources Research Enterprises Tianjin 300402China

Background:Rosa chinensis *** Rosa rugosa *** not only of ornamental value,but also edible flowers and the flower buds have been listed in the Chinese Pharmacopoeia as traditional *** two plants have some differences in efficacy,but the flower buds are easily confused for similar *** addition,large-scale cultivation of ornamental rose flowers may lead to a decrease in the effective components of medicinal ***,it is necessary to study the chemical composition and make quality evaluation of Rosae Chinensis Flos(Yueji)and Rosae Rugosae Flos(Meigui).Methods:In this study,40 batches of samples including Meigui and Yueji from different regions in China were collected to establish high-performance liquid chromatography ***,the fingerprints data was analyzed using principal component analysis,hierarchical cluster analysis,and partial least squares discriminant analysis analysis chemometrics to obtain information on intergroup differences,and non-targeted metabolomic techniques were applied to identify and compare chemical compositions of samples which were chosen from groups with large *** compounds were screened by orthogonal partial least-squares discriminant analysis and S-plot,and finally multi-component quantification was performed to comprehensively evaluate the quality of Yueji and ***:The similarity between the fingerprints of 40 batches roses and the reference print R was 0.73 to 0.93,indicating that there were similarities and differences between the *** principal component analysis and hierarchical cluster analysis of fingerprints data,the samples from different origins and varieties were intuitively divided into four *** least-squares discriminant analysis analysis showed that Meigui and Yueji cluster into two categories and the model was reliable.A total of 89 compounds were identified by high resolution mass spectrometry,mainly were flavonoids and flavon

关键词： Rosa chinensis Jacq. Rosa rugosa Thunb. metabolomics chemometrics multiple component quantification quality evaluation

Taxonomic notes on Leptonetidae(Arachnida,Araneae)from China,with descriptions of one new genus and eight new species

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Zoological Research 2020年第6期41卷 684-704页

作者： Chun-xia Wang Shu-qiang Li wen-Hui Zhu Hebei Key Laboratory of Animal Diversity College of Life ScienceLangfang Normal UniversityLangfangHebei 065000China Institute of Zoology Chinese Academy of SciencesBeijing 100101China Life Science College Shenyang Normal UniversityShenyangLiaoning 110034China

Species of the spider family Leptonetidae Simon,1890 from China are revised based on molecular and morphological data analyses.A new genus,Jingneta Wang&Li ***.,is erected,with Leptoneta cornea Tong&Li,2008 as the type ***-two Chinese species previously assigned to the genus Leptoneta Simon,1872 are revised,with eight transferred to Falcileptoneta Komatsu,1970,seven transferred to Jingneta ***.,five transferred to Leptonetela Kratochvil,1978,and one species each transferred to Longileptoneta Seo,2015 and Masirana Kishida,*** new species are described:i.e.,Falcileptoneta shuanglong Wang&Li ***.(♂),Jingneta caoxian Wang&Li ***.(♂♀),*** Wang&Li ***.(♂♀),Longileptoneta gutan Wang&Li ***.(♂♀),*** Wang&Li ***.(♂♀),*** Wang&Li ***.(♂♀),*** Wang&Li ***.(♂),and *** Wang&Li ***.(♂♀).In total,127 leptonetid species from six genera are documented from China:nine species of Falcileptoneta,nine species of Jingneta ***.,101 species of Leptonetela,six species of Longileptoneta,one species of Masirana,and one species of Rhyssoleptoneta Tong&Li,2007.

关键词： Asia Morphology New combination Taxonomy

Multidimensional Local Central Limit Theorem of Some Non-uniformly Hyperbolic Systems

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Acta Mathematica Sinica,English Series 2009年第4期25卷 565-580页

作者： Hong qiang xia College of Science Wuhan University of Science and Engineering No. 1 Fangzhi Road Wuhan 430073 P. R. China

We consider Young＇s nonuniformly hyperbolic system （X, T, u） where u is the SRB measure corresponding to the system （X, T）, and show that if the components of a Holder observable f ： X → R^d are cohomologously independent, then f satisfies the multidimensional central limit theorem. Moreover if f is aperiodic, then f satisfies the local multidimensional central limit theorem.

关键词： central limit theorem transfer operator nonuniform hyperbolic diIQ[eomorphism

Characterizations and Photothermal Properties of Narrow Bandgap Conjugated Polymer Nanoparticles

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Chinese Journal of Polymer Science 2020年第8期38卷 814-818,I0005页

作者： Yu-Lin Zhang Jun-Tao Ren Huai-Yu Gao Jia-Wei Liu wen-Jie xia wen-qiang Qiao Zhi-Yuan Wang State Key Laboratory of Fine Chemicals Department of Polymer Science&MaterialsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022China Department of Chemistry Carleton UniversityOntario K1S 5B6Canada

Photothermal therapy(PTT)is a minimally invasive treatment that kills cancer cells by converting photon energy into *** past few decades have witnessed the booming development of photothermal materials,mainly focusing on precious metal nanomaterials and carbon nanomaterials,such as nanogold and silver and nanocarbon materials for near-infrared(NIR)light-triggered *** precious metals are expensive and potentially harmful to humans,exploration and development of a new type of photothermal materials has become a research hotspot in this ***,we report narrow bandgap conjugated polymer nanoparticles(PDPP NPs)based on pyrrolo[3,4-c]pyrrole-1,4-dione(DPP)with intense NIR absorption at 900 nm,as well as a photothermal energy conversion efficiency of 75%.This polymer nanoparticle is essentially non-toxic,as the cell viability of mouse remained more than 90%,even when the concentration of PDPP NPs was at 0.5 mg·mL^-1.

关键词： Conjugated polymer Nanoparticle Photothermal property Biotoxicity

Recurrent testicular undifferentiated pleomorphic sarcoma

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Asian Journal of Andrology 2023年第4期25卷 541-543页

作者： Jun-Ping Han wen-xiao Luo Jun-wen Zeng wen-xia Ma qiang Zhao Yong-qiang Xie Zheng-Chao Zhang Department of Pathology The Third Affiliated Hospital of Gansu University of Traditional Chinese MedicineBaiyin 730900China Department of Urology The Third Affiliated Hospital of Gansu University of Traditional Chinese MedicineBaiyin 730900China Department of General Surgery The Second Hospital of Lanzhou UniversityLanzhou 730000China

Dear Editor,Undifferentiated pleomorphic sarcoma(UPS)is a subtype of soft tissue sarcoma first reported by O’Brien and Stout in 1964.1 It is a common soft tissue sarcoma in adults,commonly occurring in the extremities and retroperitoneum.2,3 However,the incidence of testicular UPS is extremely rare in China and the rest of the *** addition,radical orchiectomy is the preferred treatment for this disease,but the role of postoperative radiotherapy and chemotherapy remains *** paper reports the diagnosis,treatment process,and prognosis of a case of recurrent testicular *** performing a literature review,it was found that postoperative radiotherapy and chemotherapy may prolong the progression-free survival of the patient,so we present this paper to raise clinicians’understanding of the *** study was approved by the Ethics Committee of The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine(Baiyin,China;approval ***-X2-2020-018).The patient was informed of the content and significance of the study and signed an informed consent form.

关键词： sarcoma diagnosis approval

Rees-Shishikura's Theorem for Geometrically Finite Rational Maps

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Acta Mathematica Sinica,English Series 2017年第12期33卷 1587-1596页

作者： wen qiang SHEN Department of Mathematical Sciences Tsinghua University Beijing 100084 P. R. China

In this paper, we generalize Rees-Shishikura＇s theorem to the class of geometrically finite rational maps.

关键词： Geometrically finite rational map Rees-Shishikura's theorem homeomorphism