About: Mitochondrial bioenergetics linked to the manifestation of programmed cell death during somatic embryogenesis of Abies alba     Goto   Sponge   NotDistinct   Permalink

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  • The present work reports changes in bioenergetic parameters and mitochondrial activities during the manifestation of two events of programmed cell death (PCD), linked to Abies alba somatic embryogenesis. PCD, evidenced by in situ nuclear DNA fragmentation (TUNEL assay), DNA laddering and cytochrome c release, was decreased in maturing embryogenic tissue with respect to the proliferation stage. In addition, the major cellular energetic metabolites (ATP, NAD(P)H and glucose-6- phosphate) were highered during maturation. The main mitochondrial activities changed during two developmental stages. Mitochondria, isolated from maturing, with respect to proliferating cell masses, showed an increased activity of the alternative oxidase, external NADH dehydrogenase and fatty-acid mediated uncoupling. Conversely, a significant decrease of the mitochondrial KATP ? channel activity was observed. These results suggest a correlation between mitochondrial activities and the manifestation of PCD duri
  • The present work reports changes in bioenergetic parameters and mitochondrial activities during the manifestation of two events of programmed cell death (PCD), linked to Abies alba somatic embryogenesis. PCD, evidenced by in situ nuclear DNA fragmentation (TUNEL assay), DNA laddering and cytochrome c release, was decreased in maturing embryogenic tissue with respect to the proliferation stage. In addition, the major cellular energetic metabolites (ATP, NAD(P)H and glucose-6- phosphate) were highered during maturation. The main mitochondrial activities changed during two developmental stages. Mitochondria, isolated from maturing, with respect to proliferating cell masses, showed an increased activity of the alternative oxidase, external NADH dehydrogenase and fatty-acid mediated uncoupling. Conversely, a significant decrease of the mitochondrial KATP ? channel activity was observed. These results suggest a correlation between mitochondrial activities and the manifestation of PCD duri (en)
Title
  • Mitochondrial bioenergetics linked to the manifestation of programmed cell death during somatic embryogenesis of Abies alba
  • Mitochondrial bioenergetics linked to the manifestation of programmed cell death during somatic embryogenesis of Abies alba (en)
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  • Mitochondrial bioenergetics linked to the manifestation of programmed cell death during somatic embryogenesis of Abies alba
  • Mitochondrial bioenergetics linked to the manifestation of programmed cell death during somatic embryogenesis of Abies alba (en)
skos:notation
  • RIV/62156489:43410/09:00146508!RIV11-MSM-43410___
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  • 326531
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  • RIV/62156489:43410/09:00146508
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  • cell death (en)
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  • DE - Spolková republika Německo
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  • BERTOLINI, ALBERTO
  • ELISA, PETRUSSA
  • Krajňáková, Jana
  • VIANELLO, ANGELO
  • CASOLO, VALENTINO
  • MACRI, FRANCESCO
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  • 0032-0935
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  • 43410
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