检索结果-南通市图书馆

Cantharellus(Cantharellales,Basidiomycota)revisited in Europe through a multigene phylogeny

在线全文

学校读者我要写书评

暂无评论

Fungal Diversity 2017年第2期83卷 263-292页

作者： Ibai Olariaga Gabriel Moreno Jose Luis Manjon Isabel Salcedo Valerie Hofstetter diego rodrıguez Bart Buyck Department of Life Sciences(Botany) University of Alcala28805 Alcalade HenaresMadridSpain Department of plant Biology and Ecology(Botany) University of the Basque Country(UPV/EHU)Apdo 64448080 BilbaoSpain Department of plant protection Agroscope ChanginsWadenswil Research StationACWRte de Duiller1260 NyonSwitzerland Kherdzmari St.Microdistrict 11.Block 58 Flat 69TemkaTbilisiGeorgia Departement Systematique et Evolution CP 39ISYEBUMR 7205 CNRS MNHN UPMC EPHEMuseum National d’Histoire Naturelle12 Rue Buffon75005 ParisFrance

Resolving species delimitation issues of European Cantharellus is crucial to correctly name chanterelles around the *** names referring to Cantharellus *** been described in Europe,some of which are used in other *** on combined analyses of ITS2,LSU,RpB2 and TEF-1,merely eight species are here recognized in Europe applying the genealogical concordance phylogenetic species recognition criteria,one of which,***,is described as ***logical characters used in species delimitation are mapped and their variability *** colour of the hymenophore in young specimens is found to be a rather constant morphological character of taxonomic *** species of Cantharellus are morphologically distinguished by unique combinations of characters,such as the presence of a pink pileal coating,pileus and hymenophore colour when young,and in some cases,the mean spore length and *** type specimens from Europe are *** on revised species concepts sixteen novel taxonomic synonyms are here proposed for European chanterelles:***(=***,***,***),***(=*** ***,*** ***,***),***(=*** ***,***),***(=*** ***),***(=***),***(=*** ***,*** ***,***),and ***sianus(=***,***,***nesianus ***).The type of Cantharellus,***,is ***,colour illustrations and a key to all European species are provided.

关键词： Cantharelloid clade Cantharellaceae Epitype Edible fungi Genealogical concordance Species delimitation

Isolation and Characterization of Cellulose Nanofibers from Argentine Tacuara Cane(Guadua Angustifolia Kunth)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2019年第4期7卷 373-381页

作者： C.A.rodríguez Ramírez Fleur Rol Julien Bras Alain Dufresne Nancy Lis Garcia Norma D'Accorso Universidad de Buenos Aires Facultad de Ciencias Exactas y NaturalesDepartamento de Química OrgánicaBuenos Aires Argentina CONICET-Universidad de Buenos Aires.Centro de Investigación en Hidratos de Carbono(CIHIDECAR).Buenos Aires Argentina Univ.Grenoble Alpes CNRSGrenoble INPLGP2F-38000France

New trends in the area of material improvement are the use of natural nano-charges from renewable biomass,improving the value and sustainability of our country’s natural *** is widely used in many countries of the world,although in Argentina,despite being commercialized and exported for the manufacture of wood floors,it goes unnoticed despite having native ***,researchers identified the native and exotic species present in our country and are working on novel *** this context,it is proposed the Argentine Tacuara Cane(Guadua Angustifolia Kunth),endemic plant as a new source of nanocellulosic materials,where stem fibers have been isolated using a green method achieving with yield of 45.9%of *** cellulose nanofibrils(CNF)were obtained using a green homogenization *** CNF exhibited web-like long fibrous structure with the diameter of 10-20 *** crystallinity was 65.5%,as for the onset temperature of thermal decomposition was 212°*** nanocellulose isolated from the Tacuara Cane seed fibers has a high potential to be used as a new source of cellulose-based nanofiller for the reinforcement of bionanocomposite films.

关键词： Cellulose nanofibers green valorization

The adaptive value of grass traits in response to grazing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of plant Ecology 2018年第2期11卷 248-255页

作者： Valerie Cayssials Claudia rodríguez Instituto de Ecología y Ciencias Ambientales Facultad de CienciasUniversidad de la RepúblicaIguá4225CP 11400MontevideoUruguay

Aims Grazing is associated with several plant traits that may confer resist-ance to ***,cross-species analyses do not allow for the differentiation between adaptive evolution and common *** this study,we evaluated the effect of grazing on 5 mor-phological traits in 41 native grasses growing in natural grasslands of Uruguay and investigated whether such effects are independent of *** We used data of grass species from 17 paired,grazed and ungrazed plots located in different regions of natural grass-lands of *** each species,we calculated the Grazing Response index(GRi)and estimated the culm length,blade length,blade width,blade length/width ratio and caryopsis *** values were calculated as the mean of the maximum and minimum values reported in a public *** assessed the relationship between the GRi and the morphologi-cal traits using cross-species correlations,and we re-examined the correlations using phylogenetically controlled comparative *** Findings Culm length and blade length were significantly correlated with the *** with higher culms and longer blades diminished their cover under *** association remained significant after statistical control of phylogenetic relatedness among *** contrast,blade width,blade length/width ratio and caryopsis length did not show any significant relationship with the *** studies in temperate grasslands recognized that several plant traits respond to grazing but were rarely evaluated in a phylogenetic *** results are consistent with the idea that grazing is a selective force with a clear effect on the evolution of grass stature,selecting smaller plants with shorter blades.

关键词： grasslands plant height leaf length piCs Uruguay

Gromov Hyperbolicity of Riemann Surfaces

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2007年第2期23卷 209-228页

作者： José M.rodríguez EVa TOURIS Departamento de Matemáticas Universidad Carlos Ⅲ de MadridAvenida de la Universidad 3028911 LeganésMadridSpain

We study the hyperbolicity in the Gromov sense of Riemann surfaces. We deduce the hyperbolicity of a surface from the hyperbolicity of its ＂building block components＂. We also prove the equivalence between the hyperbolicity of a Riemann surface and the hyperbolicity of some graph associated with it. These results clarify how the decomposition of a Riemann surface into Y-pieces and funnels affects the hyperbolicity of the surface. The results simplify the topology of the surface and allow us to obtain global results from local information.

关键词： Gromov hyperbolicity hyperbolic Riemann surface

The movement dynamics of autotomized lizards and their tails reveal functional costs of caudal autotomy

在线全文

学校读者我要写书评

暂无评论

Integrative Zoology 2020年第6期15卷 511-521页

作者： Irene FERNÁNDEZ-rodrÍguez Florentino BRAÑA Department of Organisms and Systems Biology(Zoology) University of OviedoOviedoSpain Research Unit of Biodiversity(UMIB UO/CSIC/PA)University of OviedoMieresSpain

Autotomy has evolved independently several times in different animal *** frequently involves immediate functional costs,so regeneration evolved in many instances to restore the functionality of that body *** autotomy is a widespread antipredator strategy in lizards,although it may affect energy storage,locomotion dynamics,or survival in future encounters with ***,we assessed the effect of tail loss on the locomotor performance of wall lizards(podarcis muralis),as well as the recovery of locomotor functionality of lizards with regenerated tails,and the movement dynamics of shed tails that were either intact or having regenerated *** loss had no effect on locomotion over unhindered spaces,possibly due to compensation between a negative effect on the stride of front limbs,and a positive effect of losing mass and friction *** found a clear negative impact of tail loss on locomotion in spaces with interspersed obstacles,in which tailed lizards jumped larger distances when leaving the ***,lizards that used the tail to push off the ground were able to approach the obstacles from further,so that the tail seemed to be useful when used during *** fully restores lizard’s locomotor capacities,but tail antipredator value,as indicated by the intensity of post-autotomic movements,is only partially *** these results,we propose that,together with the recovery of post-autotomy antipredator capacities,the restoration of the organismal locomotor performance may have been an important,yet frequently neglected factor in the evolution of lizard’s regeneration ability.

关键词： autotomy locomotor performance regeneration tail wall lizard

Mesenchymal stem cells secretome:The cornerstone of cell-free regenerative medicine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Stem Cells 2020年第12期12卷 1529-1552页

作者： Alberto González-González Daniel García-Sánchez Monica Dotta JoséC rodríguez-Rey Flor M pérez-Campo Department of Molecular Biology_IDIVAL Faculty of MedicineUniversity of CantabriaSantander 39011CantabriaSpain

Mesenchymal stem cells(MSCs)are the most frequently used stem cells in clinical trials due to their easy isolation from various adult tissues,their ability of homing to injury sites and their potential to differentiate into multiple cell ***,the realization that the beneficial effect of MSCs relies mainly on their paracrine action,rather than on their engraftment in the recipient tissue and subsequent differentiation,has opened the way to cell-free therapeutic strategies in regenerative *** the soluble factors and vesicles secreted by MSCs are commonly known as *** secretome has a key role in cell-to-cell communication and has been proven to be an active mediator of immunemodulation and regeneration both in vitro and in ***,the use of secretome has key advantages over cell-based therapies,such as a lower immunogenicity and easy production,handling and ***,MSCs can be modulated to alter their secretome composition to better suit specific therapeutic goals,thus,opening a large number of *** these advantages now place MSCs secretome at the center of an important number of investigations in different clinical contexts,enabling rapid scientific progress in this field.

关键词： Mesenchymal stem cells Secretome Soluble factors Extra-cellular vesicles Exosomes Bone regeneration

Changes in microhabitat, but not allelopathy, affect plant establishment after Acacia dealbata invasion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of plant Ecology 2017年第4期10卷 610-617页

作者： paula Lorenzo Jonatan rodríguez Luís González Susana rodríguez-Echeverría Centre for Functional Ecology(CFE) Department of Life SciencesUniversity of CoimbraCalçada Martim de Freitas3000-456 CoimbraPortugal Facultade de Bioloxía Departamento de Bioloxía Vexetal e Ciencia do SoloUniversidade de VigoAs Lagoas-Marcosende s/n36310PontevedraSpain

Aims The tree legume Acacia dealbata Link is an aggressive Australian invader that severely affects abiotic and biotic compartments of eco-systems *** invasive species outcompetes native plant communities through direct competition,changes in microhabitat and soil properties under the canopy and the release of allelopathic ***,these effects are usually studied separately and under controlled *** objective of this study was to evaluate the combined effect of these modifications exerted by *** on the establishment of native and invasive species in the *** A full factorial experiment was performed in order to test the com-bined effect of microhabitat,soil type and allelopathy on the establish-ment of the invasive *** and three native species in the field(North-West Spain).We sowed seeds of native or invasive species in pots with different soil type(soil collected under *** or pinus pinaster),allelopathy status(soil treated or untreated with activated car-bon)and microhabitat(under the canopy of *** or ***).The number and total biomass of established plants were evaluated after 8 *** abiotic properties were determined in all *** Findings The establishment of native and invasive species was signifi-cantly affected by the microhabitat,with a higher number of seedlings under the native forest(***).The establishment of *** seedlings was also significantly promoted by its own soil.A negligible effect of allelopathy was detected on the establishment and growth of both invasive and native *** conclude that(i)the main factor affecting seedling establish-ment was microhabitat rather than changes in soil properties or allelopathy,(ii)soil modifications by *** promote the establishment of its own seedlings,contributing to the progress of invasion and(iii)allelochemicals released by *** do not seem to play a key role for the establishment of native

关键词： plant invasion microhabitat soil changes allelopathy plant establishment

Kainate receptors in the CA2 region of the hippocampus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2023年第2期18卷 320-321页

作者： Yuniesky Andrade-Talavera Antonio rodríguez-Moreno Laboratorio de Neurociencia Celulary plasticidad Departamento de FisiologíaAnatomía y Biología CelularUniversidad Pablo de OlavideSevillaSpain

The hippocampus is involved in important brain functions such as learning and memory,spatial navigation,fear processing,and social behavior(Dudek et al,2016).The most prominent areas of the hippocampus are typically denoted as the dentate gyrus and the three areas of the cornu ammonis(CA1,CA2,and CA3).Discovered by Lorente de Nó(1934),the CA2 region of the hippocampus is a relatively small area interposed between CA3 and CA1 that forms the nexus linking the input of the entorhinal cortex to the output of CA1(Chevaleyre and Siegelbaum,2010).

关键词： CA2 cortex linking

Citation distributions and research evaluations:The impossibility of formulating a universal indicator

在线全文

学校读者我要写书评

暂无评论

Journal of Data and Information Science 2024年第4期9卷 24-48页

作者： Alonso rodríguez-Navarro Department of Biotechnology-plant Biology Polytechnic University of MadridMadrid 28040Spain

purpose:To analyze the diversity of citation distributions to publications in different research topics to investigate the accuracy of size-independent,rank-based *** top percentile-based indicators are the most common indicators of this type,and the evaluations of Japan are the most evident ***/methodology/approach:The distributions of citations to publications from countries and journals in several research topics were analyzed along with the corresponding global publications using histograms with logarithmic binning,double rank plots,and normal probability plots of log-transformed numbers of ***:Size-independent,top percentile-based indicators are accurate when the global ranks of local publications fit a power law,but deviations in the least cited papers are frequent in countries and occur in all journals with high impact *** these cases,a single indicator is *** of the proportions of uncited papers are the best way to predict these *** limitations:This study is fundamentally analytical,and its results describe mathematical facts that are *** implications:Respectable institutions,such as the OECD,the European Commission,and the *** Science Board,produce research country rankings and individual evaluations using size-independent percentile indicators that are misleading in many *** misleading evaluations should be discontinued because they can cause confusion among research policymakers and lead to incorrect research ***/value:Studies linking the lower tail of citation distribution,including uncited papers,to percentile research indicators have not been performed *** present results demonstrate that studies of this type are necessary to find reliable procedures for research assessments.

关键词： Scientometrics Research assessment Research indicators Citation distribution Rank analysis