Cytokinins: new apoptotic inducers in plants (Articolo in rivista)

Type
Label
  • Cytokinins: new apoptotic inducers in plants (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00425-002-0862-x (literal)
Alternative label
  • Carimi F, Zottini M, Formentin E, Terzi M, Lo Schiavo F (2003)
    Cytokinins: new apoptotic inducers in plants
    in Planta; Springer Verlag, New York NY (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carimi F, Zottini M, Formentin E, Terzi M, Lo Schiavo F (literal)
Pagina inizio
  • 413 (literal)
Pagina fine
  • 421 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.springer.com/article/10.1007/s00425-002-0862-x (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 216 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • IF 2003: 3.053 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Pubblicazione scientifica che descrive l’effetto di alte concentrazioni della citochinina 6-benzilaminopurina sulla morte cellulare programmata e sulla senescenza. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Genetica Vegetale, Consiglio Nazionale delle Ricerche, Corso Calatafimi 414, 90129 Palermo, Italy; Dipartimento di Biologia, Università Degli Studi di Padova, Via G. Colombo 3, Padua I-35121, Italy (literal)
Titolo
  • Cytokinins: new apoptotic inducers in plants (literal)
Abstract
  • High concentrations of cytokinins block cell proliferation and induce programmed cell death (PCD) in both carrot (Daucus carota L.) and Arabidopsis thaliana (L.) Heynh. cell cultures [13 and 27 ìM benzylaminopurine (BAP), respectively]. In the present work, cell death was scored by Evan’s blue staining and was also demonstrated to be programmed by various parameters, including chromatin condensation, oligonucleosomal DNA degradation (laddering), and release of cytochrome c from mitochondria. In carrot cells, this induction takes approximately 24 h, with proliferating cells being more sensitive than quiescent ones. Two hormones, namely abscisic acid and 2,4-dichlorophenoxyacetic acid (2,4-D), protect cells against the cytokinin-induced death. PCD is not merely a consequence of the inability of the culture to proliferate, since high levels of 2,4-D block carrot cell proliferation without promoting PCD. Increased ethylene production was also observed in BAP-treated cultures, although this increase was not responsible for PCD because inhibitors of ethylene synthesis and action did not block PCD in BAP treated cultures. Programmed cell death in the form of DNA laddering was also seen in plants treated with cytokinins. This process was accompanied by accelerated senescence in the form of leaf yellowing. (literal)
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