Počet záznamů: 1

Antioxidant protection during ageing and senescence in transgenic tobacco with enhanced activity of cytokinin oxidase/dehydrogenase

  1. 1.
    0335903 - UEB-Q 2010 RIV NL eng J - Článek v odborném periodiku
    Procházková, Dagmar - Wilhelmová, Naděžda
    Antioxidant protection during ageing and senescence in transgenic tobacco with enhanced activity of cytokinin oxidase/dehydrogenase.
    Biologia Plantarum. Roč. 53, č. 4 (2009), s. 691-696 ISSN 0006-3134
    Grant CEP: GA ČR GP522/05/P558
    Výzkumný záměr: CEZ:AV0Z50380511
    Klíčová slova: oxidative stress * reactive oxygen species * transgenic plants
    Kód oboru RIV: ED - Fyziologie
    Impakt faktor: 1.656, rok: 2009

    We studied changes in physiological parameters of whole leaves and in antioxidant protection of chloroplasts during ageing and senescence of tobacco (Nicotiana tabacum L. cv. Samsun NN) leaves with enhanced cytokinin oxidase/dehydrogenase activity (CKX) or without it (WT). Old leaves of CKX plants maintained higher pigment content and photosystem 2 activity compared to WT leaves of the same age. Chloroplasts of old CKX plants showed better antioxidant capacity represented by higher superoxide dismutase, dehydroascorbate reductase and glutathione reductase activities.
    Trvalý link: http://hdl.handle.net/11104/0180249