Search results for "Aulo"

Temperature and pH define the realised niche space of arbuscular mycorrhizal fungi

2021

Made available in DSpace on 2021-06-25T11:52:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-04 European Regional Development Fund (Centre of Excellence EcolChange) University of Tartu (Estonian Research Council ) Moscow State University Natural Sciences and Engineering Research Council of Canada Discovery Grant Russian Science Foundation Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Swedish Research Council (Vetenskapsradet) The arbuscular mycorrhizal (AM) fungi are a globally distributed group of soil organisms that play critical roles in ecosystem function. However, the ecological niches of individual AM fungal taxa are poorly understood. We collected > 300 s…

Soil legacy determines arbuscular mycorrhizal spore bank and plant performance in the low Arctic

2020

AbstractHuman impact is rapidly changing vegetation globally. The effect of plant cover that no longer exists in a site may still affect the development of future vegetation. We focused on a little studied factor—arbuscular mycorrhizal (AM) fungus spore bank—and its effect on three test plant species. In a low Arctic field site, plots were maintained for 6 years, devoid of any vegetation or with a Solidago virgaurea monoculture cover. We analysed the AM fungal morphospecies composition and identified 21 morphospecies in the field plots. The AM morphospecies community was dominated by members of Acaulosporaceae. Monoculturing under low Arctic field conditions changed the soil AM spore commun…

Diversity of arbuscular mycorrhizal fungi colonising roots of the grass species Agrostis capillaris and Lolium perenne in a field experiment

2004

Analysis of arbuscular mycorrhizal (AM) fungal diversity through morphological characters of spores and intraradicular hyphae has suggested previously that preferential associations occur between plants and AM fungi. A field experiment was established to investigate whether AM fungal diversity is affected by different host plants in upland grasslands. Indigenous vegetation from plots in an unimproved pasture was replaced with monocultures of either Agrostis capillaris or Lolium perenne. Modification of the diversity of AM fungi in these plots was evaluated by analysis of partial sequences in the large subunit (LSU) ribosomal RNA (rDNA) genes. General primers for AM fungi were designed for t…

Symbiosis between river and dry lands: phycobiont dynamics on river gravel bars

2020

AbstractRiver gravel bars are dynamic and heterogeneous habitats standing on transition between aquatic and terrestrial environment. Periodical flooding, low nutrient content, frost, missing safe sites, drought, and heat on the ground surface significantly influence life in these habitats. Mutualistic symbiosis may be a successful strategy for organisms to survive and to proliferate under harsh conditions. The lichen genus Stereocaulon was selected as a model symbiotic system among the organisms living on river gravel bars. The aim of our work was to determine effect of this dynamic environment on a phycobiont (i.e., green eukaryotic photobiont) community structure. We analysed 147 Stereoca…

Tra incantamento e phobos. Alcuni esempi sugli effetti dell'aulos nei dialoghi di Platone e nella catarsi tragica.

2008

Il potere dell‟aulos e i suoi effetti sull‟animo erano così emblematici per i Greci da far loro trasformare lo strumento e le sue sonorità in una metafora di persuasione, come si riscontra in alcuni dialoghi di Platone. Da un altro punto di vista, però, l‟aulos fu anche uno strumento „perturbante‟, come appare ad esempio nella tragedia. In tale contesto esso sembra operare sulle paure (phobos) e le insicurezze dei personaggi tragici, e talora addirittura condurre agli sviluppi conclusivi della performance teatrale. Per quel che riguarda invece l'uditorio in teatro, l‟aulos può aver giocato un ruolo nello sviluppo della catarsi, in quanto gli spettatori potevano essere in grado di collegare …

Phobos, incantamento e catarsi. Alcune riflessioni su ascolto dell’aulos e tragedia.

2009

The power of the aulos and its therapeutic effects on the soul are so emblematic for the Greeks that, on the one hand, they made this instrument and its sounds into a metaphor of persuasion and, on the other, they emphasized its upsetting effects, as happens for instance in some tragedies. The aulos sometimes contributes to the development of a drama, and may play a role in the development of tragic catharsis by reminding the audience of the cathartic Dionysiac rites. In this way, tragedy seems to have performed a meaningful ‘therapeutic’ effect on the emotions of the theatre audience.

Persoona ja yhteisö : personalistinen sosiaalipedagogiikka

2002

Paulo Emílio Sales Gomes ou la critique à contre-courant

2016

International audience; Paulo Emilio Sales Gomes, intellectuel, homme de lettres et fondateur de la Cinemateca Brasileira, fait partie des personnalités essentielles de la critique de cinéma internationale. Grand défenseur du cinéma brésilien qu'il contribue à révéler (Cinema Novo), Sales Gomes est un personnage à multiples facettes : militant politique, critique, essayiste, historien et conservateur de la première cinémathèque du Brésil. Auteur de Panorama du cinéma brésilien : 1896/1966 (1970), Humberto Mauro, Cataguases, Cinearte (1974), ainsi que des nouvelles littéraires Três mulheres de 3 pppês (1977), (traduit en français P... comme Polydore ― 1986), il reste essentiellement connu en…

Diversity of chlorophenol-degrading bacteria isolated from contaminated boreal groundwater

1999

Chlorophenol-degrading bacteria from a long-term polluted groundwater aquifer were characterized. All isolates degraded 2,4,6-trichlorophenol and 2,3,4,6-tetrachlorophenol at concentrations detected in the contaminated groundwater (10 mg 1(-1)). Pentachlorophenol was degraded by three isolates when present alone. In two gram-positive isolates, 2,3,4,6-tetrachlorophenol was required as an inducer for the degradation of pentachlorophenol. The gram-positive isolates were sensitive to pentachlorophenol, with an IC50 value of 5 mg/l. Isolates belonging to the Cytophaga/Flexibacter/Bacteroides phylum had IC50 values of 25 and 63 mg/l. Isolates belonging to alpha-, beta- and gamma-Proteobacteria g…

Les monnaies gauloises et romaines de l'oppidum de Bibracte

2007

Over a century of coin finds at Bibracte, between 1868 and 2000, makes this site a major reference point for Celtic numismatics. The Catalogue raisonné of 2471 Gaulish coins and 478 Roman coins gives us an insight into the circulation of coins / coinage in this oppidum after the Roman Conquest and an idea of the level of coin usage in the Gaulish economy. The progressive emergence of coin types in archaeological contexts shows on the one hand a constant use of coins from La Tène D1, (end of the 2nd century BC), an exponential increase in the volume of coin issues up to the Roman Conquest, and a late introduction of Roman coins. This implies a growth in the use of coins in parallel with the …