Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters. (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters. (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s00468-006-0080-4 (literal)

Alternative label

• Pintó-Marijuan M.1; de Agazio M.2; Zacchini M.2; Fleck I1. (2006)
  Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters.
  in Trees (Berl., Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Pintó-Marijuan M.1; de Agazio M.2; Zacchini M.2; Fleck I1. (literal)

Pagina inizio

• 649 (literal)

Pagina fine

• 655 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 20 (literal)

Rivista

• Trees (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 7 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1Departament de Biologia Vegetal, Unitat Fisiologia Vegetal, Facultat Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain 2Istituto di Biologia Agroambientale e Forestale-CNR, Via Salaria Km 29.300, 00016 Monterotondo Scalo, Rome, Italy (literal)

Titolo

• Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters. (literal)

Abstract

• Seasonal variations in free putrescine, spermidine and spermine content, gas-exchange and chlorophyll fluorescence parameters were followed during winter and summer on leaves of a similar age from undisturbed holm oak trees (control, C) and resprouts (R) originated after fire. We observed a general trend of putrescine content decrease with increasing irradiance. Putrescine content decreased markedly from winter to summer, especially in R, which were located on a site with much higher irradiation. Daily summer variations in putrescine showed a decline at midday from morning values, and they were also more accentuated in R. Measurement of gas-exchange and chlorophyll fluorescence parameters showed marked differences between C and R under their respective light conditions. R showed higher values of PSII quantum yield (?PSII), photochemical quenching (qP) and intrinsic efficiency of open PSII centres (F? v/F? m) The ?PSII/PPFD response curve showed that under the same irradiance, ?PSII was enhanced in R and mainly under high light conditions. In spite of increasing irradiance from winter to summer, and especially in burned areas, the mentioned chlorophyll fluorescence parameters were maintained indicating the adaptation of the photosynthetic apparatus. Results derived from A/Ci and A/PPFD response curves showed enhanced photosynthetic capacity and lower non-stomatal limitation of photosynthesis in R during summer stress. The contribution of putrescine decline in the photoadaptation of the photosynthetic apparatus of species growing in natural forest habitats is considered. (literal)

Prodotto di

• Ecologia funzionale e molecolare (TA.P04.013.001) (Modulo)
• Istituto di biologia agro-ambientale e forestale (IBAF) (Istituto)

Autore CNR

• MASSIMO ZACCHINI (Unità di personale interno)
• MARINA DE AGAZIO (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters." (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MASSIMO ZACCHINI (Unità di personale interno)
• MARINA DE AGAZIO (Unità di personale interno)

Prodotto

• Istituto di biologia agro-ambientale e forestale (IBAF) (Istituto)
• Ecologia funzionale e molecolare (TA.P04.013.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Trees (Rivista)

Insieme di parole chiave di

• Keywords of "Seasonal and diurnal monitoring of leaf polyamine content in Quercus ilex L. resprouts after fire in relation to changes in irradiation and photosynthetic parameters." (Insieme di parole chiave)