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	Provedor de dados RChHN (2) Autor ALBERDI,MIREN (2) OLIVARES,ERICK (2) BARRIENTOS,MÓNICA (1) BRAVO,LEÓN A (1) CORCUERA,LUIS J (1) GODOY,ROBERTO (1) HESS,SUSAN (1) REYES-DÍAZ,MARJORIE (1) VALENZUELA,EDUARDO (1) ZÚÑIGA,RAFAEL (1) ÁLVAREZ,MARICEL (1) Mais... Palavra-chave Nothofagus dombeyi (2) Chlorophyll fluorescence (1) Ectomycorrhizal fungi (1) Nothofagus nitida (1) Osmotic adjustment (1) Performance of the PS II (1) Photosynthesis (1) Water deficit (1) Xanthophyll cycle (1) Mais... Tipo do documento Journal article (2) Ano 2007 (1) 2006 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Seasonal changes in the photosynthetic performance of two evergreen Nothofagus species in south central Chile RChHN ZÚÑIGA,RAFAEL; ALBERDI,MIREN; REYES-DÍAZ,MARJORIE; OLIVARES,ERICK; HESS,SUSAN; BRAVO,LEÓN A; CORCUERA,LUIS J. The evergreen Nothofagus dombeyi and Nothofagus nitida are important members of the temperate Chilean rainforest. They seldom grow together in nature. Nothofagus nitida is more susceptible to excess light and drought than N. dombeyi. We postulate that the different properties of the photosynthetic apparatus under common garden conditions of these species could explain their contrasting habitat preferences. The two species growing in a common garden in south central Chile were studied. The optimal photochemical efficiency (Fv/Fm) of both species remained within normal values (»0.8) with the exception of a decrease in N. dombeyi at midday in summer, suggesting reversible reduction in photochemical efficiency of photosystem II (PSII). During summer the... Tipo: Journal article Palavras-chave: Chlorophyll fluorescence; Photosynthesis; Nothofagus dombeyi; Nothofagus nitida; Xanthophyll cycle. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000400008 Response to water deficit of Nothofagus dombeyi plants inoculated with a specific (Descolea antárctica Sing) and non-specific (Pisolithus tinctorious (Pers.) Coker & Couch) ectomycorrhizal fungi RChHN ALBERDI,MIREN; ÁLVAREZ,MARICEL; VALENZUELA,EDUARDO; GODOY,ROBERTO; OLIVARES,ERICK; BARRIENTOS,MÓNICA. The influence of the specific Descolea antárctica {Da) and the non-specific Pisolithus tinctorious {Pt) ectomycorrhizal fungi on some physiological leaf parameters of the Chilean evergreen Nothofagus dombeyi subjected to a low soil water potential (-1.6 to -1.9 MPa in a growth chamber for 35 days) and a high water potential (-0.07 to -0.09 MPa, control) was studied. Drought decreased the water status and increased carbohydrates in mycorrhizal and non-mycorrhizal plants, appearing Z)a-mycorrhizal and non mycorrhizal plants better osmotically adjusted (OA= 0.60 MPa and 0.52 MPa, respectively) than ft-mycorrhizal (0.39 MPa). Proline is not involved in the O A of mycorrhizal plants. The inoculation of N. dombeyi with both ectomycorrhizal fungi favored a better... Tipo: Journal article Palavras-chave: Nothofagus dombeyi; Ectomycorrhizal fungi; Water deficit; Osmotic adjustment; Performance of the PS II. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400009 Registros recuperados: 2 Primeira ... 1 ... Última

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