Data/hora: 12/06/2024 05:00:11

Provedor de dados: 	Revista Chilena de Historia Natural	
País: 	Chile	
Título: 	Response to water deficit of Nothofagus dombeyi plants inoculated with a specific (Descolea antárctica Sing) and non-specific (Pisolithus tinctorious (Pers.) Coker &amp;amp; Couch) ectomycorrhizal fungi	
Autores: 	ALBERDI,MIREN; ÁLVAREZ,MARICEL; VALENZUELA,EDUARDO; GODOY,ROBERTO; OLIVARES,ERICK; BARRIENTOS,MÓNICA.	
Data: 	2007-01-01	
Ano: 	2007	
Palavras-chave: 	Nothofagus dombeyi; Ectomycorrhizal fungi; Water deficit; Osmotic adjustment; Performance of the PS II.	
Resumo: 	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 maintenance of the functionality of the photosynthetic apparatus under drought as indicated by the effective quantum yield (cPPSII). It is concluded that both ectomycorrhizal and non-mycorrhizal N. dombeyi plants responded to water deficit with O A adjustment, having Z)a-mycorrhizal plants a greater O A than Pt- mycorrhizal plants	
Tipo: 	Journal article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400009	
Editor: 	Sociedad de Biología de Chile	
Formato: 	text/html	
Fonte: 	Revista chilena de historia natural  v.80 n.4 2007