Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation (Articolo in rivista)

Type

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

Label

• Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• A.Francini, L. Galleschi, F. Saviozzi, C. Pinzino, R. Izzo, C. L. M. Sgherri, F. Navari-Izzo (2006)
  Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation
  in Plant physiology and biochemistry (Paris)
  (literal)

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

• A.Francini, L. Galleschi, F. Saviozzi, C. Pinzino, R. Izzo, C. L. M. Sgherri, F. Navari-Izzo (literal)

Pagina inizio

• 556 (literal)

Pagina fine

• 563 (literal)

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

• 44 (literal)

Rivista

• Plant physiology and biochemistry (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• Dipartimento di Scienze Botaniche, Università di Pisa, via L. Ghini 5, 56126 Pisa, Italy Istituto di Chimica Quantistica ed Energetica Molecolare, C.N.R., Area della Ricerca di Pisa, 56100 Pisa, Italy Dipartimento di Chimica e Biotecnologie Agrarie, Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy (literal)

Titolo

• Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation (literal)

Abstract

• The changes in several antioxidants as well as in the level of C-centered free radicals and thiobarbituric acid reactive substances (TBARS) were studied in seeds of Araucaria bidwillii Hook desiccated to 37%, 28% and 21% moisture content. The lowest-safe moisture content for the seedling establishment was 37%. The embryo, besides double amounts of free radicals, showed higher levels of both enzymatic and nonenzymatic antioxidants than endosperm. Lutein decreased in both organs whereas á-tocopherol values were not affected by desiccation. In the embryo at 37% seed moisture content the antioxidant defense system increased giving rise to a decrease in free radicals. Beyond this point, free radicals and TBARS increased in agreement with the umpiring of the ascorbate/glutathione cycle by the decrease in reduced glutathione and glutathione reductase activity (GR, EC 1.6.4.2). At 21% moisture GR decreased. In the endosperm during desiccation, the consumption of ascorbate, total glutathione and lutein prevented the rise in free radicals and TBARS till 28% moisture, at which an increase in oxidized glutathione was also observed. (literal)

Prodotto di

• Struttura e dinamica in sistemi autoorganizzati e cooperativi (MD.P01.012.001) (Modulo)
• Istituto per i processi chimico-fisici (IPCF) (Istituto)

Autore CNR

• CALOGERO PINZINO (Unità di personale interno)
• LUCIANO GALLESCHI (Persona)

Insieme di parole chiave

• Parole chiave di "Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per i processi chimico-fisici (IPCF) (Istituto)
• Struttura e dinamica in sistemi autoorganizzati e cooperativi (MD.P01.012.001) (Modulo)

Autore CNR di

• CALOGERO PINZINO (Unità di personale interno)
• LUCIANO GALLESCHI (Persona)

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

• Plant physiology and biochemistry (Rivista)

Insieme di parole chiave di

• Parole chiave di "Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation" (Insieme di parole chiave)