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Plastid genome evolution of a monophyletic group in the subtribe Lauriineae(Laureae,Lauraceae)

Plant Diversity 2022年第4期44卷 377-388页

作者： Chao liu Huan-Huan Chen li-zhou tang Phyo Kay Khine li-Hong Han Yu Song Yun-Hong Tan College of Biological Resource and Food Engineering Yunnan Engineering Research Center of Fruit WineQujing Normal UniversityQujingYunnan655011China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Ministry of Education) Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River BasinGuangxi Normal UniversityGuilinGuangxi541004China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan666303China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw05282Myanmar

litsea,a non-monophyletic group of the tribe Laureae(Lauraceae),plays important roles in the tropical and subtropical forests of Asia,Australia,Central and North America,and the islands of the Pacific.However,intergeneric relationships between litsea and Laurus,lindera,Parasassafras and Sinosassafras of the tribe Laureae remain unresolved.In this study,we present phylogenetic analyses of seven newly sequenced litsea plastomes,together with 47 Laureae plastomes obtained from public databases,representing six genera of the Laureae.Our results highlight two highly supported monophyletic groups of litsea taxa.One is composed of 16 litsea taxa and two lindera taxa.The 18 plastomes of these taxa were further compared for their gene structure,codon usage,contraction and expansion of inverted repeats,sequence repeats,divergence hotspots,and gene evolution.The complete plastome size of newly sequenced taxa varied between 152,377 bp(litsea auriculata)and 154,117 bp(litsea pierrei).Seven of the 16 litsea plastomes have a pair of insertions in the IRa(trnL-trnH)and IRb(ycf2)regions.The 18 plastomes of litsea and lindera taxa exhibit similar gene features,codon usage,oligonucleotide repeats,and inverted repeat dynamics.The codons with the highest frequency among these taxa favored A/T endings and each of these plastomes had nine divergence hotspots,which are located in the same regions.We also identified six protein coding genes(accD,ndhJ,rbcL,rpoC2,ycf1 and ycf2)under positive selection in litsea;these genes may play important roles in adaptation of litsea species to various environments.

关键词： litsea Phylogenetic analysis Divergent hotspots Gene evolution

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Phylogenomic relationships and molecular convergences to subterranean life in rodent family Spalacidae

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Zoological Research 2021年第5期42卷 671-674页

作者： Yuan-Ting Guo Jia Zhang Dong-Ming Xu li-zhou tang Zhen liu State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Kunming College of life Science University of Chinese Academy of SciencesKunmingYunnan 650204China Center for Yunnan Plateau Biological Resources Protection and Utilization College of Biological Resource and Food EngineeringQujing Normal UniversityQujingYunnan 655011China

All extant species in the rodent family Spalacidae are subterranean and have evolved various traits for underground life.However,the phylogenomic relationships among its three subfamilies(Myospalacinae,Spalacinae,and Rhizomyinae)and the molecular basis underlying their adaptations to underground life remain poorly understood.Here,we inferred the phylogenomic relationships among these subfamilies based on de novo sequencing the genome of the hoary bamboo rat(Rhizomys pruinosus).Analyses showed that 50%of the identified 11028 one-to-one orthologous protein-coding genes and the concatenated sequences of these orthologous genes strongly supported a sister relationship between Myospalacinae and Rhizomyinae.

关键词： underground life rodent

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Investigation on UV-curing Reprocessable Thermosets Bearing Hindered Urea Bonds and Their Composites with Modified Zinc Oxide Nanoparticles

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Chinese Journal of Polymer Science 2024年第6期42卷 751-765页

作者： Jun-Hao zhou li-Ming tang Key Laboratory of Advanced Materials of Ministry of Education of China Department of Chemical EngineeringTsinghua UniversityBeijing100084China

In this study,a series of hindered urea bond(HUB)containing polyurethane-urea methacrylate prepolymers and a none HUB containing polyurethane methacrylate prepolymer were prepared using isobornyl methacrylate as the reactive diluent via one-pot procedure.The prepolymers were characterized fully by various techniques.Then,their thermosets were fabricated via UV curing in presence of a photo initiator,and their mechanical property and thermal behavior were investigated and compared.Different from the none HUB containing thermoset,the HUB containing thermosets(defined as PUT)could be recycled and reprocessed by hot press under relatively mild conditions with high recovery ratio of mechanical property.Furthermore,zinc oxide(ZnO)nanoparticles were modified with 3-(trimethoxysilyl)propyl methacrylate and the modified ZnO(defined as ZnO-TPM)was dispersed and polymerized into PUT matrix to prepare their nanocomposites.The influence of ZnO-TPM on the mechanical performance of the composites was evaluated,which indicated that the Young’s modulus and tensile strength increased gradually to the maximum values at ZnO-TPM content of 1 wt%and then decreased.The composites also displayed good reprocessability with improved recovery ratio compared to the pure PUT sample.In addition,the composite materials exhibited strong UV absorption capacity,implying their potential application in the circumstance where UV-shielding was required.

关键词： Polyurethane-urea methacrylate Hindered urea bond ZnO nanoparticles Reprocessing UV curing

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Research on modeling and self-excited vibration mechanism in magnetic levitation-collision interface coupling system

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 873-890页

作者： Jinghu tang Chaofeng li Jin zhou Zhiwei WU School of Mechanical Engineering&Automation Northeastern UniversityShenyang 110819China Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education of China Northeastern UniversityShenyang 110819China School of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

The modeling and self-excited vibration mechanism in the magnetic levitation-collision interface coupling system are investigated.The effects of the control and interface parameters on the system's stability are analyzed.The frequency range of self-excited vibrations is investigated from the energy point of view.The phenomenon of self-excited vibrations is elaborated with the phase trajectory.The corresponding control strategies are briefly analyzed with respect to the vibration mechanism.The results show that when the levitation objects collide with the mechanical interface,the system's vibration frequency becomes larger with the decrease in the collision gap;when the vibration frequency exceeds the critical frequency,the electromagnetic system continues to provide energy to the system,and the collision interface continuously dissipates energy so that the system enters the self-excited vibration state.

关键词： magnetic levitation coupling system self-excited vibration mechanical interface vibration frequency

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Efficacy and safety of Chinese herbal medicine as adjunctive therapy in sepsis patients with bloodstream infection:a propensity-matched analysis

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Journal of Traditional Chinese Medicine 2024年第1期44卷 197-204页

作者： zhou Xianshi ZHONG Minlin XI Xiaotu li Jun tang Guanghua the Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou 510120China Emergency Department Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120China Guangdong Provincial Key Laboratory of Research on Emergency in TCM Guangzhou 510120China Guangzhou Key Laboratory of Traditional Chinese Medicine for Prevention and Treatment of Emerging Infectious Diseases Guangzhou 510120China Administration Department the First Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405China

OBJECTIVE:To investigate the efficacy and safety of Chinese herbal medicine in treating sepsis patients with bloodstream infection.METHODS:A 6-year retrospective study was carried out at a university hospital in China.Adult sepsis patients with bloodstream infection were included.The primary outcome was 28-day mortality after admission.Propensity score method was used to adjust for possible confounding.28-day mortality was estimated by KaplanMeier analysis and compared using the log-rank test.Cox regression analysis was carried out to identify factors impacting in-hospital mortality outcomes.RESULTS:Following the application of the propensity score method,a total of 176 patients were included.The all-cause 28-day mortality in the control group and Chinese herbal medicine group was 21.6%and 14.8%,respectively.Kaplan-Meier survival analysis showed that Chinese herbal medicine was associated with a lower hazard ratio(HR)in all-cause 28-day death compared with the control group[HR=0.44,95%CI(0.22,0.90),Plications were similar between the two groups(P>0.05).Blood-activating and stasis-eliminating herb administration was associated with reduced inhospital mortality among sepsis patients with bloodstream infection[HR=0.54,95%CI(0.34,0.94),Pliminating herb,might have certain efficacy and safety in treating sepsis patients with bloodstream infection.Clinicians should prescribe blood-activating and stasis-eliminating herb in treating these two coalescent critical diseases as long as no contraindications exist.However,further studies are needed to validate our results.

关键词： bacteremia medicine Chinese traditional herbal medicine sepsis propensity-matched analysis

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Diet and physical activity influence the composition of gut microbiota,benefit on Alzheimer's disease

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Food Science and Human Wellness 2024年第2期13卷 541-555页

作者： Jinyue zhou Min tang Wanyi li Rui Fang Chunlan tang Qinwen Wang 无 School of Public Health Health Science CenterNingbo UniversityNingbo 315211China Department of Neurology Ningbo Rehabilitation HospitalNingbo 3151000China Ningbo Institute of life and Health Industry University of Chinese Academy of SciencesNingbo 315100China Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province Ningbo 315100China

Alzheimer's disease is a neurodegenerative disease with complex etiology.Gut microbiota influences the gutbrain axis,which may affect pathways related to the pathogenesis of Alzheimer's disease.Additionally,diet and physical activity are likely to affect the pathology of Alzheimer's disease as well as the gut microbiota.This demonstrates that it may be possible to prevent or halt the progression of Alzheimer's disease by regulating the gut microbiota using diet and physical activity strategies.Therefore,the present study reviews the association between these two interventions and gut microbiota in the human body.It also summarizes how these two interventions benefit Alzheimer's disease.Furthermore,the primary limitations of these two interventions are discussed and promising strategies are proposed,which may be beneficial to further study and develop the intervening measure for the progression of Alzheimer's disease.

关键词： Alzheimer’s disease Gut microbiota Brain-gut axis Diet Physical activity

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Effect of the Particle Packing Configuration on Fixed Bed Performance

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China Petroleum Processing & Petrochemical Technology 2024年第1期26卷 152-160页

作者： li Ziqi Bao Di zhou Han tang Xiaojin SINOPEC Research Institute of Petroleum Processing Co. Ltd.Beijing 100083China

Fixed-bed reactors are generally considered the optimal choice for numerous multi-phase catalytic reactions due to their excellent performance and stability.However,conventional fixed beds often encounter challenges related to inadequate mass transfer and a high pressure drop caused by the non-uniform void fraction distribution.To enhance the overall performance of fixed beds,the impact of different packing configurations on performance was investigated.Experimental and simulation methods were used to investigate the fluid flow and mass transfer performances of various packed beds under different flow rates.It was found that structured beds exhibited a significantly lower pressure drop per unit length than conventional packed beds.Furthermore,the packing configurations had a critical role in improving the overall performance of fixed beds.Specifically,structured packed beds,particularly the H-2 packing configuration,effectively reduced the pressure drop per unit length and improved the mass transfer efficiency.The H-2 packing configuration consisted of two parallel strips of particles in each layer,with strips arranged perpendicularly between adjacent layers,and the spacing between the strips varied from layer to layer.

关键词： packing configurations fixed bed Computational Fluid Dynamics simulation pressure drop mass transfer

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Zinc lactate alleviates oxidative stress by modulating crosstalk between constitutive androstane receptor signaling pathway and gut microbiota profile in weaned piglets

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Animal Nutrition 2024年第1期16卷 23-33页

作者： Wenjie tang Xuan Xiang Houfu Wang Wentao zhou liuqin He Yulong Yin Tiejun li College of Animal Science and Technology Hunan Agricultural University Sichuan Academy of Animal Sciences Animal Breeding and Genetics Key Laboratory of Sichuan Province livestock and Poultry Biological Products Key Laboratory of Sichuan Province Sichuan Animtech Feed Co. Ltd Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Institute of Subtropical Agriculture Chinese Academy of Sciences College of Advanced Agricultural Science University of Chinese Academy of Sciences Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation Laboratory of Animal Nutrition and Human Health College of Life Sciences Hunan Normal University

This study aimed to determine the regulatory mechanism of dietary zinc lactate (ZL) supplementation on intestinal oxidative stress damage in a paraquat (PQ)-induced piglet model. Twenty-eight piglets (mean body weight 9.51±0.23 kg) weaned at 28 d of age were randomly divided into control, ZL, PQ, and ZL+PQ groups (n=7 in each group). The ZL-supplemented diet had little effect on growth performance under normal physiological conditions. However, under PQ challenge, ZL supplementation significantly improved average daily gain (Plity. ZL supplementation also enhanced the expression of antioxidant and antiinflammatory factor-related genes and decreased inflammatory cytokine expression and secretion in PQinduced piglets. Furthermore, ZL treatment significantly inhibited the activation of constitutive androstane receptor (CAR) signaling (Pling and gut microbiota.

关键词： Zinc lactate Intestinal barrier Oxidative stress Inflammation Constitutive androstane receptor Gut microbiota

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Deep-reinforcement-learning-based UAV autonomous navigation and collision avoidance in unknown environments

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Chinese Journal of Aeronautics 2024年第3期37卷 237-257页

作者： Fei WANG Xiaoping ZHU zhou zhou Yang tang School of Astronautics Northwestern Polytechnical UniversityXi’an 710072China School of Aeronautics Northwestern Polytechnical UniversityXi’an 710072China

In some military application scenarios,Unmanned Aerial Vehicles(UAVs)need to perform missions with the assistance of on-board cameras when radar is not available and communication is interrupted,which brings challenges for UAV autonomous navigation and collision avoidance.In this paper,an improved deep-reinforcement-learning algorithm,Deep Q-Network with a Faster R-CNN model and a Data Deposit Mechanism(FRDDM-DQN),is proposed.A Faster R-CNN model(FR)is introduced and optimized to obtain the ability to extract obstacle information from images,and a new replay memory Data Deposit Mechanism(DDM)is designed to train an agent with a better performance.During training,a two-part training approach is used to reduce the time spent on training as well as retraining when the scenario changes.In order to verify the performance of the proposed method,a series of experiments,including training experiments,test experiments,and typical episodes experiments,is conducted in a 3D simulation environment.Experimental results show that the agent trained by the proposed FRDDM-DQN has the ability to navigate autonomously and avoid collisions,and performs better compared to the FRDQN,FR-DDQN,FR-Dueling DQN,YOLO-based YDDM-DQN,and original FR outputbased FR-ODQN.

关键词： Faster R-CNN model Replay memory Data Deposit Mechanism(DDM) Two-part training approach Image-based Autonomous Navigation and Collision Avoidance(ANCA) Unmanned Aerial Vehicle(UAV)

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Forecasting the number of species of asexually reproducing fungi(Ascomycota and Basidiomycota)

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Fungal Diversity 2022年第3期114卷 463-490页

作者： Nalin N.Wijayawardene Alan J.L.Phillips Diana Santos Pereira Dong-Qin Dai AndréAptroot Josiane S.Monteiro Irina S.Druzhinina Feng Cai Xinlei Fan Laura Selbmann Claudia Coleine Rafael F.Castañeda-Ruiz Martin Kukwa Adam Flakus Patricia Oliveira Fiuza Paul M.Kirk Kunhiraman C.Rajesh Kumar Ilesha S.leperuma Arachchi Nakarin Suwannarach li-zhou tang Teun Boekhout Chen Shuhui Tan R.P.Prabath K.Jayasinghe Marco Thines Centre for Yunnan Plateau Biological Resources Protection and Utilization College of Biological Resource and Food EngineeringQujing Normal UniversityQujing 655011YunnanPeople’s Republic of China Section of Genetics Institute for Research and Development in Health and Social CareNo:393/3Lily AvenueOff Robert Gunawardane MawathaBattaramulla 10120Sri Lanka Faculdade de Ciências Biosystems and Integrative Sciences Institute(BioISI)Universidade de LisboaCampo Grande1749-016 LisbonPortugal Laboratório de Botânica/liquenologia Instituto de BiociênciasUniversidade Federal de Mato Grosso do SulAvenida Costa e Silva S/NBairro UniversitárioCampo GrandeMS CEP 79070-900Brazil Coordination of Botany Museu Paraense Emílio GoeldiBelémPA 66077830Brazil Fungal Genomics Laboratory(FungiG) College of Resources and Environmental SciencesNanjing Agricultural UniversityWeigang 1Nanjing 210095JiangsuPeople’s Republic of China The Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry UniversityBeijing 100083People’s Republic of China Department of Ecological and Biological Sciences University of TusciaViterboItaly Italian National Antarctic Museum(MNA) Mycological SectionGenoaItaly Alejandro de Humboldt’(INIFAT) Instituto de Investigaciones Fundamentales en AgriculturaTropicalSantiago de Las VegasHavanaCuba Department of Plant Taxonomy and Nature Conservation Faculty of BiologyUniversity of GdańskWita Stwosza 5980-308 GdańskPoland W.Szafer Institute of Botany Polish Academy of SciencesLubicz 4631-512 KrakowPoland Universidade Federal do Rio Grande do Norte(UFRN) Programa de Pós-Graduação em Sistemática e EvoluçãoCentro de BiociênciasCampus UniversitárioAv.Senador Salgado Filho3000Lagoa NovaNatalRN 59078-970Brazil Biodiversity Informatics and Spatial Analysis Jodrell LaboratoryRoyal Botanic GardensKewRichmond TW93DSSurreyUK National Fungal Culture Collection of India(NFCCI) Biodiversity and Palaeobiology GroupMACS Agharkar Research InstituteG.G.

Asexually reproducing fungi play a significant role in essential processes in managed and wild ecosystems such as nutrients cycling and multitrophic interactions.A large number of such taxa are among the most notorious plant and animal pathogens.In addition,they have a key role in food production,biotechnology and medicine.Taxa without or rare sexual reproduction are distinguished based on their sporulating structures and conidiomata in traditional morphology-based taxonomy.The number,variation and diversity of asexually reproducing taxa are insufficiently known,even though fungi capable of asexual reproduction may provide an untapped,rich biological resource for future exploitation.Currently,ca.30,000 asexual species belonging to ca.3800 genera have been reported(including 1388 coelomycetous and 2265 hyphomycetous genera).Recent reports(2017–2020)reiterate that the number of asexually producing fungi is higher than the number of frequently sexually-reproducing fungi.With the advent of molecular tools and the abandonment of the dual nomenclature system for pleomorphic fungi,priority criteria were established and revisited in the latest outline of fungi and fungus-like taxa.However,species numbers and taxonomic boundaries of pleomorphic taxa and their synanamorphs or synasexual morphs have yet to be addressed.The number of species of speciose genera(e.g.Alternaria,Aspergillus,Cercospora,Fusarium,Phoma and Pseudocercospora),cryptic species,species of pleomorphic genera,less studied life modes(such as lichenicolous taxa,taxa from extreme environments)and species from biodiversity-rich areas still need evaluation to achieve more reliable estimates of their diversity.This paper discusses the current knowledge on the matter,with diversity estimates,and potential obstacles in several chapters on(1)speciose genera;(2)pleomorphic genera;(3)cryptic species;(4)well-studied but insufficiently resolved taxa,e.***.leaf inhabiting species,marine fungi,(5)less studied life modes,e.***.lichenicolous,rock-inhabiting fungi,insect-assoc

关键词： Cryptic species DNA sequences Morphology Pleomorphism Speciose genera Species identificat

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