| Registro completo |
| Provedor de dados: |
RChHN
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| País: |
Chile
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| Título: |
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
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| Autores: |
ALBERDI,MIREN
ÁLVAREZ,MARICEL
VALENZUELA,EDUARDO
GODOY,ROBERTO
OLIVARES,ERICK
BARRIENTOS,MÓNICA
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| Data: |
2007-01-01
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| Ano: |
2007
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| Palavras-chave: |
Nothofagus dombeyi
Ectomycorrhizal fungi
Water deficit
Osmotic adjustment
Performance of the PS II
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| 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
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| Tipo: |
Journal article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400009
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| Editor: |
Sociedad de Biología de Chile
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| Formato: |
text/html
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| Fonte: |
Revista chilena de historia natural v.80 n.4 2007
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