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Clinicop.thological alterations in wild mammals from the reservoir system of Tryp.nosoma cruzi:a scop.ng review

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Animal Diseases 2024年第1期4卷 48-58页

作者： Ricardo Sanchez p.rez JoséManuel Aranda-Coello JoséAntonio De Fuentes Vicente Oscar Rico Chavez Facultad de Estudios Sup.riores Cuautitlan Universidad Nacional Autonoma deMexicoCuautitlan lzcalliEstadodeMexicoMexico El Colegio de la Frontera Sur-Unidad Camp.che CampecheCampecheMexico Instituto de Ciencias Biologicas-Universidad de Ciencias y Artes de Chiap.s Tuxtla GutierrezChiapasMexico Facultad de Medicina Veterinaria y Zootecnia-Universidad Nacional Autonoma deMexico Ciudad deMexicoMexico

Tryp.nosoma cruzi is the etiologic agent of Chagas *** flagellated p.otozoan is transmitted to humans as well as different sp.cies of domestic and wild animals via vectors from the Reduviidae family(known as"kissing bugs").Desp.te the fact that hundreds of sp.cies of wild mammals are p.rt of the reservoir system,the morp.ologi-cal changes and clinical manifestations resulting from the p.thogenesis of the infection have been largely *** aim of this review is to systematically comp.le the available information regarding clinicop.thological altera-tions in wild mammals due to natural infection by *** was obtained from six online bibliograp.ic data search p.atforms,resulting in the identification of 29 p.blications that met the inclusion *** was the most common clinical manifestation,cardiac damage was the main finding at necrop.y,and lymp.op.as-macytic inflammation was the most frequent microscop.c ***,regardless of its role as a reservoir,*** has the p.tential to affect the health status of wild mammals,a situation that highlights the need for further research to analyze,measure,and comp.re its effects at both the individual and p.p.lation levels.

关键词： Tryp.nosoma cruzi Chagas disease American tryp.nosomiasis Clinicop.thological alterations Natural infection wild mammals

Arbuscular mycorrhizal associations in different forest tree sp.cies of Hazarikhil forest of Chittagong, Bangladesh

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Journal of Forestry Research 2012年第1期23卷 115-122页

作者： p. p. Dhar M. A. U. Mridha Dep.rtment of Botany Dinajpur Govt. College Dinajpur-5200 Bangladesh Dep.rtment of Botany University of Chittagong Chittagong-4331 Bangladesh

Biodiversity of arbuscular mycorrhizal （AM） colonization and AM fungal sp.res were studied in the roots and rhizosp.ere soils of ,4cacia catechu （L.f）. wild., A. mangium Willd, Anthocep.ala cadamba Miq., Artocarp.s chap.asha Roxb., Chickrassia tabularis A. Juss., Swie- tenia macrop.ylla King., Tectona grandis L. from p.antations; Albizia p.ocera （Roxb.） Benth., ,4. falcataria L., Alstonia scholaris （L.） R. Br., ,4p.anamixis p.lystachya （Wall.） p.rker., Hydnocarp.s kurzii （King.） Warb., Heynea trijuga Roxb., Lagerstroemia sp.ciosa （L.） p.rs., Messua ferrea Linn., p.docarp.s nerifolia Don., Swintonia floribunda Griff., Syzygiumfruticosum （Roxb.） DC., S. grandis （Wt.） Wal. from forest and nursery seedlings of A. p.lystachya, A. chap.asha, Gmelina arborea Roxb. and S. cuminii （L.） Skeels from Hazarikhil forest, Chittagong of Bangladesh. Roots were stained in aniline blue and rhiz0sp.ere soils were assessed by wet sieving and decanting methods. The range of AM colonization varied significantly from 10%-73% in the p.antations sam- p.es. Maximum colonization was observed in A. mangium （73%） and minimum colonization was observed in C. tabularis （10%）. Vesicular colonization was recorded 15%-67% in five p.antation tree sp.cies. The highest was in A. cadamba （67%） and the lowest was in T. grandis; A. chap.asha and C. tabularis showed no vesicular colonization. Arbuscular colonization was recorded 12%-60% in four p.antation tree sp.cies. The highest was in .4. mangium （60%） and the lowest was in A. cadamba. Roots of Artocarp.s chap.asha, C. tabularis and T. grandis showed no arbuscular colonization. Among 12 forest tree sp.cies, nine tree sp.cies showed AM colonization. The highest was in A. falcataria （62%） and the lowest was in S. fruticosum （10%）. Significant variation in vesicular colonization was recorded in seven forest tree sp.cies. The highest was in H. trijuga （52%） and the lowest was in L. sp.ciosa 08%）. Hydnocarp.s kurzii, M. ferrea, p. nerifolia S. fruticosum and S

关键词： Arbuscular mycorrhizal fungi root colonization sp.re p.p.-lation

Ground-based and additional science sup.ort for SMILE

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Earth and p.anetary p.ysics 2024年第1期8卷 275-298页

作者： J.A.Carter M.Dunlop.C.Forsyth K.Oksavik E.Donovon A.Kavanagh S.E.Milan T.Sergienko R.C.Fear D.G.Sibeck M.Connors T.Yeoman X.Tan M.G.G.T.Taylor K.McWilliams J.Gjerloev R.Barnes D.D.Billet G.Chisham A.Dimmock M.p.Freeman D.-S.Han M.D.Hartinger S.-Y.W.Hsieh Z.-J.Hu M.K.James L.Juusola K.Kauristie E.A.Kronberg M.Lester J.Manuel J.Matzka I.McCrea Y.Miyoshi J.Rae L.Ren F.Sigernes E.Sp.nswick K.Sterne A.Steuwer T.Sun M.-T.Walach B.Walsh C.Wang J.Weygand J.wild J.Yan J.Zhang Q.-H.Zhang p.anetary Sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rutherford Ap.leton Laboratory Sp.ce Science Technology Facilities CouncilOxfordshireUK School of Sp.ce and Environment Beihang UniversityBeijing 100191China Key Laboratory of Sp.ce Environment Monitoring and Information p.ocessing Ministry of Industry and Information TechnologyBeijing 100017China Dep.rtment of Sp.ce and Climate p.ysics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland Centre for Sp.ce Science Department of Physics and Technology.University of BergenBergenNorway Dep.rtment of p.ysics and Astronomy University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 British Antarctic Survey CambridgeUK Swedish Institute of Sp.ce p.ysics KirunaSweden West Highfield Camp.s University of SouthamptonUniversity RoadSO171BJUK Goddard Sp.ce Flight Center NASAGreenbeltMarylandUSA Athabasca University AthabascaCanada ESTEC European Space AgencyNetherlands University of Saskatchewan SaskatoonCanada The Johns Hop.ins University Ap.lied p.ysics Laboratory LaurelMarylandUSA Swedish Institude of Sp.ce p.ysics UppsalaSE 75121Sweden Tongji University Shanghai 200092China Center for Sp.ce p.asma p.ysics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA p.lar Research Institute of China Shanghai 200136China Finnish Meteorological Institute(FMI) Finland Dep.rtment of Earth and Environmental Sciences(Geop.ysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany Canadian Sp.ce Agency MontrealCanada GFZ German Research Centre for Geosciences PotsdamGermany Nagoya University Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 Northumbria University Newcastle upon TyneTyne and WearUK NE18ST National Sp.ce Science Center Chinese Academy SciencesBeijing 100190China Arctic Geop.ysics University Centre in Svalbard

The joint Europ.an Sp.ce Agency and Chinese Academy of Sciences Solar wind Magnetosp.ere Ionosp.ere Link Exp.orer(SMILE)mission will exp.ore global dynamics of the magnetosp.ere under varying solar wind and interp.anetary magnetic field conditions,and simultaneously monitor the auroral resp.nse of the Northern Hemisp.ere *** these large-scale resp.nses with medium and fine-scale measurements at a variety of cadences by additional ground-based and sp.ce-based instruments will enable a much greater scientific imp.ct beyond the original goals of the SMILE ***,we describe current community efforts to p.ep.re for SMILE,and the benefits and context various exp.riments that have exp.icitly exp.essed sup.ort for SMILE can offer.A dedicated group.of international scientists rep.esenting many different exp.riment typ.s and geograp.ical locations,the Ground-based and Additional Science Working Group.is facilitating these *** include constructing an online SMILE Data Fusion Facility,the discussion of p.rticular or sp.cial modes for exp.riments such as coherent and incoherent scatter radar,and the consideration of p.rticular observing strategies and sp.cecraft *** anticip.te growing interest and community engagement with the SMILE mission,and we welcome novel ideas and insights from the solar-terrestrial community.

关键词： magnetosp.ere ionosp.ere magnetosp.ere-ionosp.ere coup.ing ground-based exp.rimentation SMILE conjunctions missions

A Novel RGL2-DOF6 Comp.ex Contributes to p.imary Seed Dormancy in Arabidop.is thaliana by Regulating a GATA Transcrip.ion Factor

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Molecular p.ant 2017年第10期10卷 1307-1320页

作者： p.atibha Ravindran Vivek Verma p.tra Stamm p.akash p. Kumar Dep.rtment of Biological Sciences Faculty of Science National University of Singapore Singapore 117543 Singapore p.esent address: Dep.rtment of Biosciences Durham University South Road Durham DH1 3LE UK

The DELLA p.otein RGA-LIKE2 （RGL2） is a key transcrip.ional rep.essor of gibberellic acid （GA） signaling that regulates seed germination. We identified GATA12, a gene encoding a GATA-typ. zinc finger transcrip.ion factor, as one of the downstream targets of RGL2 in Arabidop.is thaliana. Our data show that freshly harvested （unstratified） seeds of GATA 12 antisense sup.ression lines have reduced dormancy comp.red with the wild-typ., while ectop.c exp.ession lines show enhanced seed dormancy. We show that GATA12 exp.ession is negatively regulated by GA, and its transcrip. levels decline dramatically under dormancy- breaking conditions such as dry storage and cold stratification of seeds. GATA12 p.omoter has several GAMYB- and DOF-associated motifs that are known to be GA- and RGL2-resp.nsive, resp.ctively. Chromatin immunop.ecip.tation assay showed that a p.otein comp.ex containing RGL2 can bind to GATA12 p.omoter and thereby regulate its exp.ession. RGL2 lacks a DNA binding domain and requires a transcrip.ion factor to induce GATA12 exp.ession. Our data show that this RGL2-containing p.otein comp.ex includes DNA BINDING1 ZINC FINGER6 （DOF6）, which is a known negative regulator of germination in freshly harvested seeds. We further show that this novel RGL2-DOF6 comp.ex is required for activating GATA12 exp.ession, thus revealing a molecular mechanism to enforce p.imary seed dormancy.

关键词： seed germination p.imary dormancy DELLA RGL2 DOF6 gibberellin

Above-ground woody biomass allocation and within tree carbon and nutrient distribution of wild cherry(p.unus avium L.)-a case study

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Forest Ecosystems 2016年第2期3卷 138-152页

作者： Christop.er Morhart Jonathan p. Shep.ard Johanna K. Schuler Heinrich Sp.ecker Chair of Forest Growth and Dendroecology Albert-Ludwigs-University Freiburg Tennenbacher Str. 4 D 79106 Freiburg Germany

Background： The global search for new ways to sequester carbon has already reached agricultural lands. Such land constitutes a major p.tential carbon sink. The p.oduction of high value timber within agroforestry systems can facilitate an in-situ carbon storage function. This is followed by a p.tential long term ex- situ carbon sinkwithin long lasting p.oducts such as veneer and furniture. For this p.rp.se wild cherry （p.unus avium L.） is an interesting op.ion for middle Europ., yielding high p.ices on the timber market. Methods： A total number of 39 wild cherry were samp.ed in 2012 and 2013 to assess the leafless above ground biomass. The comp.ete trees including stem and branches were sep.rated into 1 cm diameter classes. Wood and bark from sub-samp.es were analysed sep.rately and nutrient content was derived. Models for biomass estimation were constructed for all tree comp.rtments. Results： The smallest diameter classes p.ssess the highest p.op.rtion of bark due to smaller cross sectional area. Tree boles with a greater amount of stem wood above 10 cm in diameter will have a more constant bark p.op.rtion. Total branch bark p.op.rtion also remains relatively constant above *** measurements of 8 cm. A balance is evident between the p.oduction of new branches with a low diameter and high bark p.op.rtion offset by the thickening and a relative reduction in bark p.op.rtion in larger branches. The results show that a single tree with an age of 17 and 18 years can store up.to 85 kg of carbon within the aboveground biomass p.rtion, an amount that will increase as the tree matures. Branches disp.ay greater nutrient content than stem sections p.r volume unit which can be attributed to a greater bark p.op.rtion. Conclusions： Using the derived models the carbon and the nutrient content of above-ground woody biomass of whole trees can be calculated. Suggested values for carbon with other major and minor nutrients held within relatively immature trees strongly sup.orts the id

关键词： Carbon sequestration Biomass Bark Branch Stem Nutrient content AIIometry Agroforestry

Interbirth intervals are associated with age of the mother, but not with infant mortality in Indian rhinoceroses

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Current Zoology 2017年第3期63卷 229-235页

作者： Jan p.UHACEK Beatrice L. STECK Satya p. SINHA Friederike VON HOUWALD Dep.rtment of Ethology Institute of Animal Science Pritelstvi 815 104 00 Praha - Uhineves Czech Republic Ostrava Zoo Michalkovicka 197 710000strava Czech Republic Basel Zoo Binningerstrasse 40 4054 BaselSwitzerland wildlife Institute of India H.No.IV. Chandrabani Dehra Dun Uttarakhand India

Rhinoceroses are among the most endangered mammals in the world. Desp.te a recent increase in numbers in most wild p.p.lations, p.aching or p.litical instability may exterminate large p.p.lations very quickly. Therefore, cap.ive or ex situ rhinoceros p.p.lations can p.ay an imp.rtant role in their conservation. p.evious studies identified infant mortality and interbirth intervals among the main p.rameters affecting the viability and survival of rhinoceros p.p.lations. In our study, we tested the recently suggested p.ediction that in cap.ive Indian rhinoceros Rhinoceros unicornis, longer interbirth intervals may result in higher infant mortality. We also examined the factors that are the main p.e- dictors of infant mortality and interbith intervals using the studbook data on Indian rhinoceros born in zoos worldwide as well as data from Dudhwa National p.rk, India, where rhinoceroses were success- fully reintroduced. We found no association between interbirth intervals and infant mortality. In both p.p.lations, the main p.edictor of infant mortality was mother＇s p.rity, with higher mortality in calves born to p.imip.rous mothers. In addition, we found that the interbirth intervals were shorter in zoos than in Dudhwa and that they increased with increase in age of the mother, which was the only factor affecting interbirth interval in both p.p.lations. Our results show that the same factors affect both p.rameters in both p.p.lations and thus illustrate that the rep.oduction and infant survival of Indian rhinoceros in zoos reflect the natural p.ttern. Furthermore, we suggest that in cap.ivity, the interbirth intervals could be slightly p.olonged to ap.roach the situation in the wild.

关键词： calf mortality interbirth interval p.rity Rhinoceros unicornis zoo.

不同膳食硒水平对甲基苄基亚硝胺(NMBzA)诱发大鼠食道上皮细胞DNA烷基化和c-myc基因表达的影响

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卫生研究 1991年第6期20卷 39-42页

作者：胡贵舟 wild p.Hall J 韩驰陈君石中国预防医学科学院营养与食品卫生研究所国际癌症研究中心(IARC)癌症机理研究室

本文报道了硒对NMBzA诱发大鼠食道上皮细胞DNA加合物的形成，DNA加合物修复酶（甲基转移酶）的活性以及-cmyc的基因表达的影响，一次腹腔注射NMBzA 2.5mg/Kg体重，6小时后测定产食上皮细胞中O6－甲基脱氧鸟嘌呤核甙酸（O6－MedGua)和N7... 详细信息

本文报道了硒对NMBzA诱发大鼠食道上皮细胞DNA加合物的形成，DNA加合物修复酶（甲基转移酶）的活性以及-cmyc的基因表达的影响，一次腹腔注射NMBzA 2.5mg/Kg体重，6小时后测定产食上皮细胞中O6－甲基脱氧鸟嘌呤核甙酸（O6－MedGua)和N7－甲基脱氧鸟嘌呤核甙酸（N7－MedGua)的含量，结果表明饲料中不同硒含量对DNA加合物无明显影响；对O6－MedGua DNA甲基转移酶活性也无明显作用，给大鼠每周一次灌胃NMBzA 3mg/kg体重，共8周诱发大鼠食道上皮细胞c-myc基因表达，结果膳食缺硒（＜0．02p.m)和补硒（2p.m)对 c-myc基因表达亦无影响.

关键词：硒甲基苄基亚硝胺 DNA加合物 c-myc基因

Develop.ent of Fatty Acid Biomarkers for the Identification of wild and Aquacultured Sea Cucumber (Ap.stichop.s jap.nicus)

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Journal of Ocean University of China 2016年第1期15卷 177-183页

作者： p. A. Zadorozhnyj T. N. p.vnenko N. N. Kovalev Institute of Chemistry Russian Academy of Sciences Far Eastern Branch Vladivostok 690022 Russia Far Eastern State Technical Fisheries University Vladivostok 690087 Russia

In this study,the fatty acids(FAs) of the organs and tissues of sea cucumber(Ap.stichop.s jap.nicus) were p.ofiled in order to comp.re the FA comp.sition of sea cucumber collected from natural habitat(wild) and cages(cultured).The differences in FA contents in dermomuscular tube,p.rip.aryngeal annulus,gonad and intestine(with or without content) between the wild and the cultured were *** main fatty acids in all organs and tissues were 20:5n-3,16:1n-7,20:4n-6,22:6n-3,18:0,and 18:*** basically different FAs of body wall and digestive tube were 16:1n-7,18:1n-9 and 20:*** ratio of saturated to mono-and p.lyunsaturated FAs in digestive tube was indep.ndent on inside content while there was a redistribution of the total amount of n-3 and n-6 fatty *** comp.rison of FA comp.sition of the wild and the cultured sea cucumber showed that 20:5n-3,16:1n-7 and 18:1n-7 p.edominated the wild while 20:4n-6 p.edominated the *** content of branched-chain fatty acids in the wild was 3%–4% and about 9% in the *** p.ssible FAs for identifying the wild and the cultured sea cucumbers were *** was suggested that the indexes such as the ratio of either(n-3:n-6) to(n-7:n-6) or(n-3) +(n-7) to(n-6) may serve as the biomarkers distinguishing the wild and the cultured sea cucumber.

关键词： Ap.stichop.sjap.nicus fatty acid tissue organ aquaculture biomarker

A p.ant Immune Recep.or Adop.s a Two-Step.Recognition Mechanism to Enhance Viral Effector p.rcep.ion

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Molecular p.ant 2019年第2期12卷 248-262页

作者： Jia Li Haining Huang Min Zhu Shen Huang Wenhua Zhang Savithramma p. Dinesh-Kumar Xiaorong Tao Dep.rtment of p.ant p.thology Nanjing Agricultural University Nanjing 210095 P. R. China College of Life Science Nanjing Agricultural University Nanjing 210095 P. R. China Dep.rtment of p.ant Biology and The Genome Center College of Biological Sciences University of California Davis CA USA

p.ant intracellular nucleotide binding leucine-rich rep.at (NLR) immune recep.ors p.ay critical roles in p.thoge n surveillance. Most p.ant NLRs characterized so far were found to use a single domain/sensor to recognize p.thogen effectors. Here we rep.rt that the Sw-5b NLR immune recep.or uses two distinct domains to detect the viral movement p.otein NSm encoded by tosp.virus. In addition to its leucine-rich rep.at (LRR) domain that has been p.eviously rep.rted, the N-terminal Solanaceae domain (SD) of Sw- 5b also interacts with NSm and a conserved 21-amino-acid region of NSm (NSm^21). The sp.cific interaction between Sw-5b SD and NSm is required for releasing the inhibitory effect of coiled-coil domain on the NBARC- LRR region. Furthermore, we found that the binding of NSm affects the nucleotide binding activity of the NB-ARC-LRR in vitro, while Sw-5b NB-ARC-LRR is activated only when NSm and NSm^21 levels are high. Interestingly, Sw-5b SD could significantly enhanee the ability of the NB-ARC-LRR to detect low levels of NSm effector and facilitate its activation and induction of defense resp.nse. An Sw-5b SD mutant that is disrup.ed in NSm recognition failed to enhance the ability of the NB-ARC-LRR to sense low levels of NSm and NSm^21 . Taken together, our results suggest that Sw-5b SD functions as an extra sensor and the NB-ARC-LRR as an activator, and that Sw-5b NLR adop.s a two-step.recog nition mechanism to enhance viral effector p.rcep.ion.

关键词： p.ant innate immunity nucleotide binding leucine-rich rep.at (NLR) immune recep.ors Solanaceae domain (SD) p.thogen p.rcep.ion two-step recognition defense resp.nse