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Halophily reloaded:new insights into the extremophilic life-style of Wallemia with the description of Wallemia hederae ***

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Fungal Diversity 2016年第1期76卷 97-118页

作者： Sašo Jančič Polona Zalar Dragi Kocev Hans-Josef Schroers Sašo Džeroski nina gunde-cimerman Department of Biology Biotechnical FacultyJamnikarjeva 101SI-1000 LjubljanaSlovenia Department of Knowledge Technologies Jožef Stefan InstituteJamova cesta 39SI-1000 LjubljanaSlovenia Agricultural Institute of Slovenia Hacquetova 17p.p.2553SI-1000 LjubljanaSlovenia Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins(CIPKeBiP) Jamova cesta 39SI-1000 LjubljanaSlovenia

Wallemia comprises air-and food-borne,mycotoxigenic contaminants including the halophilic ***,xerotolerant *** and xerophilic *** isolates are easily overlooked and only a comparably small number of strains have been deposited in culture collections so *** order to better understand the natural distribution of Wallemia *** to encounter their natural habitats,we tested more than 300 low-water-activity substrates and 30 air samples from a wide geographical *** isolated more than 150 new Wallemia *** sebi and *** were isolated mostly from hypersaline water,low-water-activity foods,plant materials and *** muriae is the dominant Wallemia species in the air of natural and human influenced environments in *** isolates of *** were obtained from hypersaline environments such as brine,salt crystals,salty foods and MgCl_(2)-rich bitterns,and from the air of hay barns in *** halotolerant strains were recognised as a hitherto un-described species Wallemia hederae,the phylogenetic sister of the halophilic *** *** in-vitro growth on media that contain the chaotropic salt MgCl_(2).Wallemia ichthyophaga can grow in liquid medium enriched with 2 M MgCl_(2).Never before has a microorganism been grown on comparably high MgCl_(2) *** of the activity of a wide range of extracellular enzymes in the presence of NaCl also suggested that Wallemia iswell-adapted to substrates with a reduced water activity.

关键词： Chaophiles Ecophysiology Extracellular enzymes Exudates Machine learning Taxonomy

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Fungi between extremotolerance and opportunistic pathogenicity on humans

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Fungal Diversity 2018年第6期93卷 195-213页

作者： Cene Gostincar Janja Zajc Metka Lenassi Ana Plemenitas Sybren de Hoog Abdullah M.S.Al-Hatmi nina gunde-cimerman Department of Biology Biotechnical FacultyUniversity of LjubljanaJamnikarjeva 1011000 LjubljanaSlovenia Department of Molecular and Biomedical Sciences Jozˇef Stefan InstituteJamova 391000 LjubljanaSlovenia National Institute of Biology Vecˇna pot 1111000 LjubljanaSlovenia Institute of Biochemistry Faculty of MedicineUniversity of LjubljanaVrazov trg 21000 LjubljanaSlovenia Westerdijk Fungal Biodiversity Institute UtrechtThe Netherlands Center of Expertise in Mycology of RadboudUMC/Canisius Wilhelmina Ziekenhuis NijmegenThe Netherlands Directorate General of Health Services IbriOman

Numerous agents of infections in humans and other mammals are found among fungi that are able to survive extreme environmental conditions and to quickly adapt to novel ***,the relationship between opportunistic potential and polyextremotolerance was not yet studied systematically in ***,the link between polyextremotolerance and opportunistic pathogenicity is shown in a kingdom-wide phylogenetic analysis as a statistically significant co-occurrence of extremotolerance(*** and psychrotolerance)and opportunism at the level of fungal *** addition to extremotolerance,fungal opportunists share another characteristic—an apparent lack of specialised virulence *** is illustrated by a comparative genomic analysis of 20 dothideomycetous and eurotiomycetous black *** the genomes of specialised fungal plant pathogens were significantly enriched in known virulence-associated genes that encode secreted proteases,carbohydrate active enzyme families,polyketide synthases,and non-ribosomal peptide synthetases,no such signatures were observed in human *** the presented results have several *** infection of human hosts is a side effect of fungal stress tolerance and adaptability,the human body is most likely neither the preferred habitat of such species,nor important for their evolutionary *** defines opportunism as opposed to pathogenicity,where infection is advantageous for the species’*** opportunists are generally incapable of the host-to-host transmission,any host-specific adaptations are likely to be lost with the resolution of the infection,explaining the observed lack of specialised virulence *** this scenario opportunistic infections should be seen as an evolutionary dead end and unlikely to lead to true pathogenicity.

关键词： Virulence factor Extremotolerance Stress tolerance Mycosis Opportunistic infection Black yeast

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Dishwashers provide a selective extreme environment for human-opportunistic yeast-like fungi

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Fungal Diversity 2016年第1期76卷 1-9页

作者： Ramazan Gümral BetilÖzhak-Baysan Ayşegül Tümgör Mehmet Ali Saraçlı Şinasi Taner Yıldıran Macit Ilkit Jerneja Zupančič Monika Novak-Babič nina gunde-cimerman Polona Zalar GSybren de Hoog Department of Microbiology Gülhane Military Medical AcademyAnkaraTurkey Department of Microbiology Faculty of MedicineUniversity of AkdenizAntalyaTurkey Department of Microbiology Adana Numune Training and Research HospitalAdanaTurkey Division of Mycology Department of MicrobiologyFaculty of MedicineUniversity ofÇukurovaAdana 01330Turkey Department of Biology Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins(CIPKeBiP) LjubljanaSlovenia CBS-KNAW Fungal Biodiversity Centre UtrechtThe Netherlands Institute for Biodiversity and Ecosystem Dynamics University of AmsterdamAmsterdamThe Netherlands Research Center for Medical Mycology Peking University Health Science CenterBeijingChina Sun Yat-sen Hospital Sun Yat-sen UniversityGuangzhouChina Shanghai Institute of Medical Mycology Changzheng HospitalSecond Military Medical UniversityShanghaiChina Basic Pathology Department Federal University of ParanáStateCuritibaParanáBrazil King Abdulaziz University JeddahSaudi Arabia

Urban life has led to the creation of human-made environments that,from a microbiological perspective,provide extreme life *** non-ubiquitous microorganisms such as thermophilic members of the black yeast genus Exophiala are enriched within these habitats for which no counterpart is known in *** consistently accumulate a number of specific black,white and red yeasts on the rubber seals of doors and in stagnant water at the *** of these yeasts are primarily known as agents of human opportunistic *** this review,the literature data are supported by a screening study involving 937 households in 15 cities in *** were detected in 230 samples(24.5%).Using rDNA sequencing,the prevalent species were identified as Exophiala dermatitidis(n=116),Candida parapsilosis(n=44),***(n=35),Magnusiomyces capitatus(n=22),Rhodotorula mucilaginosa(n=15),and ***(n=14).The possible role of dishwashers in transmitting disease is discussed.

关键词： Candida parapsilosis Exophiala.Extremophile Indoor environment Magnusiomyces capitatus Opportunistic pathogen

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Delimiting species in Basidiomycota:a review

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Fungal Diversity 2021年第4期109卷 181-237页

作者： Bin Cao Danny Haelewaters Nathan Schoutteten Dominik Begerow Teun Boekhout Admir J.Giachini Sergio P.Gorjón nina gunde-cimerman Kevin D.Hyde Martin Kemler Guo-Jie Li Dong-Mei Liu Xin-Zhan Liu Jorinde Nuytinck Viktor Papp Anton Savchenko Kyryll Savchenko Leho Tedersoo Bart Theelen Marco Thines Michal Tomšovský Merje Toome-Heller Judith P.Urón Annemieke Verbeken Alfredo Vizzini Andrey M.Yurkov Juan Carlos Zamora Rui-Lin Zhao State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Faculty of Science University of South Bohemia37005ČeskéBudějoviceCzech Republic Research Group Mycology Department of BiologyGhent University9000 GhentBelgium Department of Botany and Plant Pathology College of AgriculturePurdue UniversityWest LafayetteIN 47907USA Department of Geobotany Ruhr-Universität Bochum44801 BochumGermany Westerdijk Fungal Biodiversity Institute 3508 AD UtrechtThe Netherlands Institute of Biodiversity and Ecosystem Dynamics University of Amsterdam1090 GE AmsterdamThe Netherlands Department of Microbiology Universidade Federal de Santa CatarinaFlorianópolisSC 88040-900Brazil Department of Botany and Plant Physiology University of Salamanca37007 SalamancaSpain Department of Biology Biotechnical FacultyUniversity of Ljubljana1000 LjubljanaSlovenia Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Innovative Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225China CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanChina Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei Collaborative Innovation Center of VegetableCollege of HorticultureHebei Agricultural UniversityBaoding 071001Hebei ProvinceChina Institute of Ecology Chinese Research Academy of Environmental SciencesBeijing 100012China Naturalis Biodiversity Center 2300 RA LeidenThe Netherlands Department of Botany Institute of AgronomyHungarian University of Agriculture and Life Sciences1518 BudapestHungary Institute of Ecology&Earth Sciences University of Tartu51014 TartuEstonia Department of Biological Sciences Butler UniversityIndianapolisIN 46219USA Center of Mycology and Microbiology University of Tartu14a Ravila50411 TartuEstonia Senckenberg Biodiversity and Climate Researc

Species delimitation is one of the most fundamental processes in *** undertakings,for instance,require explicit species concepts and criteria for species delimitation in order to be relevant and ***,a perfect species concept does not exist for ***,we review the species concepts commonly used in Basidiomycota,the second largest phylum of Fungi that contains some of the best known species of mushrooms,rusts,smuts,and jelly *** general,best practice is to delimitate species,publish new taxa,and conduct taxonomic revisions based on as many independent lines of evidence as possible,that is,by applying a so-called unifying(or integrative)conceptual ***,the types of data used vary considerably from group to *** this reason we discuss the different classes of Basidiomycota,and for each provide:(i)a general introduction with difficulties faced in species recognition,(ii)species concepts and methods for species delimitation,and(iii)community recommendations and conclusions.

关键词： Biological species concept Morphological species concept Phylogenetic species concept Taxonomy

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Silent battles:immune responses in asymptomatic SARS-CoV-2 infection

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Cellular & Molecular Immunology 2024年第2期21卷 159-170页

作者： nina Le Bert Taraz Samandari Program in Emerging Infectious Diseases Duke-NUS Medical SchoolSingaporeSingapore

SARS-CoV-2 infections manifest with a broad spectrum of presentations,ranging from asymptomatic infections to severe pneumonia and fatal *** review centers on asymptomatic infections,a widely reported phenomenon that has substantially contributed to the rapid spread of the *** such asymptomatic infections,we focus on the role of innate,humoral,and cellular ***,asymptomatic infections are characterized by an early and robust innate immune response,particularly a swift type 1 IFN reaction,alongside a rapid and broad induction of SARS-CoV-2-specific T ***,antibody levels tend to be lower or undetectable after asymptomatic infections,suggesting that the rapid control of viral replication by innate and cellular responses might impede the full triggering of humoral *** if antibody levels are present in the early convalescent phase,they wane rapidly below serological detection limits,particularly following asymptomatic ***,prevalence studies reliant solely on serological assays likely underestimate the extent of community exposure to the virus.

关键词： COVID-19 asymptomatic cellular immunity antibody

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Exploring changes of precipitation extremes under climate change through global variable-resolution modeling

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Science Bulletin 2024年第2期69卷 237-247页

作者： Wei Sun Jian Li Rucong Yu nina Li Yi Zhang State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Institute of Tibetan Plateau Meteorology China Meteorological AdministrationChengdu 610072China Department of Atmospheric Science Yunnan UniversityKunming 650091China National Meteorological Center China Meteorological AdministrationBeijing 100081China 2035 Future Laboratory PIESAT Information Technology Co.Ltd.Beijing 100105China

Understanding the responses of precipitation extremes to global climate change remains limited owing to their poor representations in models and complicated interactions with multi-scale *** we take the record-breaking precipitation over China in 2021 as an example,and study its changes under three different climate scenarios through a developed pseudo-global-warming(PGW)experimental framework with 60-3 km variable-resolution global ensemble *** to the present climate,the precipitation extreme under a warmer(cooler)climate increased(decreased)in intensity,coverage,and total amount at a range of 24.3%-37.8%(18.7%-56.1%).With the help of the proposed PGW experimental framework,we further reveal the impacts of the multi-scale system interactions in climate change on the precipitation *** the warmer climate,large-scale water vapor transport converged from double typhoons and the subtropical high marched into central China,enhancing the convective energy and instability on the leading edge of the transport *** a result,the mesoscale convective system(Mcs)that directly contributed to the precipitation extreme became stronger than that in the present *** the contrary,the cooler climate displayed opposite changing characteristics relative to the warmer climate,ranging from the large-scale systems to local environments and to the *** summary,our study provides a promising approach to scientifically assess the response of precipitation extremes to climate change,making it feasible to perform ensemble simulations while investigating the multi-scale system interactions over the globe.

关键词： Precipitation extreme Climate change Pseudo-global-warming experiment Variable-resolution modeling Multi-scale system interaction

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Taxonomy and phylogeny of the section Chaetoceros(Chaetocerotaceae,Bacillariophyta),with description of two new species

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Journal of Oceanology and Limnology 2024年第4期42卷 1286-1311页

作者： Xudan LU Mengyi ZHAI nina LUNDHOLM Yang LI Guangdong Provincial Key Laboratory of Biotechnology for Plant Development Guangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringCollege of Life ScienceSouth China Normal UniversityGuangzhou 510631China Natural History Museum of Denmark University of CopenhagenCopenhagen K 1353Denmark

Chaetoceros Ehrenberg is one of the most diverse genera of planktonic *** species in section Chaetoceros are characterized by cells and setae having numerous chloroplasts and being widely ***,the delimitations of some species are problematic because of limited morphological information in the classical *** strains of the section Chaetoceros were established,morphological features were studied using light and electron microscopy,and the hypervariable D 1-D 3 region of the nuclear ribosomal large subunit gene was sequenced to address phylogenetic *** species belonging to the section Chaetoceros were recorded,including two new species,*** *** *** *** hainanensis was characterized by straight chains,narrowly lanceolate to hexagonal apertures,sibling setae diverging in nearly right angles,stipule-shaped spines on terminal setae and arrowhead-shaped spines on intercalary *** had short straight chains,narrowly lanceolate apertures,arrowhead-shaped spines and circular poroids arranged in a grid pattern on terminal and intercalary *** phylogenetic analyses revealed six groups formed by 19 species within the section Chaetoceros,which was found to be *** subdivision of the section is still not well *** morphological characters within each group varied considerably and molecular information on more species are needed to enrich the phylogenetic profiling.

关键词： morphology large subunit ribosomal RNA encoding gene(LSU) section Chaetoceros Chaetoceros hainanensis Chaetoceros tridiscus

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Juvenile survival curves in a solitary ground squirrel with a prolonged hibernation:effects of individual characteristics,environment,and maternal investment

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Current Zoology 2024年第1期70卷 13-23页

作者： nina A.Vasilieva Liudmila E Savinetskaya Andrey V.Tchabovsky A.N.Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscow 119071Russia

Juvenile survival is a key life-history influence on population dynamics and adaptive *** analyzed the effects of individual chara-cteristics,early environment,and maternal investment on juvenile survival in a large solitary hibernating rodent-yellow ground squirrel Spermophilus fulvus using Cox mixed-effects *** 48%of weaned pups survived to dispersal and 17%survived to *** life expectancy was primarily determined by individual characteristics and,to a lesser extent,by the early *** strongest and pos-itive predictor of juvenile survival was body mass which crucially affected mortality immediately after *** suffered higher mortality than females after the onset of dispersal;however,the overall difference between sexes was partly masked by high rates of mortality in the first days after emergence in both *** emerged juveniles had lower life expectancy than the earliest *** overall effect of local juvenile density was *** lactation did not enhance juvenile survival:Pups nursed longer survived shorter than the young nursed for a shorter *** findings support the hypothesis that females of *** cannot effectively regulate maternal expenditures to mitigate the effects of unfavorable conditions on their *** strategy to deal with seasonal time constraints on life history in female *** suggests an early termination of maternal care at the cost of juvenile quality and *** female reproductive strategy corresponds to a"fast-solitary"life of folivorous desert-dwelling *** and other solitary ground squirrels with prolonged hibernation.

关键词： early-life conditions ground squirrels hibernation juvenile mortality maternal investment survival curves

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Evaluation and projection of marine heatwaves in the South China Sea: insights from CMIP6 multi-model ensemble

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Acta Oceanologica Sinica 2024年第7期43卷 15-25页

作者： Kai Liu Kang Xu Tongxin Han Congwen Zhu nina Li Anboyu Guo Xiaolu Huang National Marine Environmental Forecasting Center Beijing 100081China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China National Meteorological Center China Meteorological AdministrationBeijing 100081China Inner Mongolia Autonomous Region Meteorological Observatory Huhhot 010051China

This study evaluates the performance of 16 models sourced from the coupled model intercomparison project phase 6(CMIP6)in simulating marine heatwaves(MHWs)in the South China Sea(SCS)during the historical period(1982−2014),and also investigates future changes in SCS MHWs based on simulations from three shared socioeconomic pathway(SSP)scenarios(SSP126,SSP245,and SSP585)using CMIP6 *** demonstrate that the CMIP6 models perform well in simulating the spatial-temporal distribution and intensity of SCS MHWs,with their multi-model ensemble(MME)results showing the best *** reasonable agreement between the observations and CMIP6 MME reveals that the increasing trends of SCS MHWs are attributed to the warming sea surface temperature *** various SSP scenarios,the year 2040 emerges as pivotal juncture for future shifts in SCS MHWs,marked by distinct variations in changing rate and *** is characterized by an accelerated decrease in MHWs frequency and a notably heightened increase in mean intensity,duration,and total days after ***,the projection results for SCS MHWs suggest that the spatial pattern of MHWs remains consistent across future ***,the intensity shows higher consistency only during the near-term period(2021−2050),while notable inconsistencies are observed during the medium-term(2041−2070)and long-term(2071−2100)periods under the three SSP *** the nearterm period,the SCS MHWs are characterized by moderate and strong events with high frequencies and relatively shorter *** contrast,during the medium-term period,MHWs are also characterized by moderate and strong events,but with longer-lasting and more intense events under the SSP245 and SSP585 ***,in the long-term period,extreme MHWs become the dominant feature under the SSP585 scenario,indicating a substantial intensification of SCS MHWs,effectively establishing a near-permanent state.

关键词： marine heatwaves South China Sea global warming future projections CMIP6

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Particle Swarm Optimization Bat Algorithm Path Automatically Planning Research for Police Drones in Hilly Cities

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Journal of Systems Science and Information 2024年第1期12卷 125-144页

作者： Jing XUE Zefu TAN nina DAI Guoping LEI Chao HE Chongqing Three Gorges University Chongqing 404020China

Mountain cities are complex asymmetric dynamic network architectures,and the flight of UAVs in this environment is subject to various constraints,while efficiency is a crucial factor in the trajectory planning of police UAVs,which need to maintain high efficiency and safe flight paths between their starting and ending points,but the traditional trajectory planning method cannot meet the requirements of rapid maneuvering of police *** achieve this,a 3D terrain map is built,an objective function is established for the flight cost in the UAV trajectory planning process,and a planning algorithm called particle swarm optimization bat algorithm(PSOBA)is *** combines the characteristics of the bat algorithm(BA)and the particle swarm optimization algorithm(PSO)to improve population diversity and resolve the delayed convergence issue in the last phases of *** results show that PSOBA is more effective than BA,with a search time for the best solution that is approximately 20.43%shorter and a convergence value of the objective function that is approximately 38%*** is also able to plan a quicker,shorter,and safer flight path compared to other trail planning algorithms that enhance the bat *** findings suggest that PSOBA is a powerful algorithm with potential application value in UAV trajectory planning control in the mobile intelligence *** to the service of public social security.

关键词： hilly cities police drones asymmetrical trajectory planning particle swarm bat algorithm

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