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2007 | 29 | 6 |
Tytuł artykułu

Flooding-induced changes in photosynthesis and oxidative status in maize plants

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Maize plants (Zea mays L.) were subjected to soil flooding for 72, 96, and 120 h. A noticeable decrease in the rate of net photosynthesis (PN) and the activity of ribulose-1,5-bisphosphate carboxylase (RuBPC, EC 4.1.1.39) were observed. The values of intercellular CO₂ concentrations (ci) increased in all flooded plants without significant changes in stomatal conductance (gs). The activity of phosphoenolpyruvate carboxylase (PEPC, EC 4.1.1.31) increased twofold 120 h after soil flooding. Flooding of maize plants led to a decrease in chlorophyll and protein levels and to slight increase of proline content. Flooded plants exhibited a large accumulation of leaf acidity. An increase in the values of some important parameters associated with oxidative stress, namely peroxides production, lipid peroxidation, and electrolyte leakage, confirmed the suggestion that root oxygen deficiency caused photooxidative damage in maize leaves.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
29
Numer
6
Opis fizyczny
p.535-541,fig.,ref.
Twórcy
  • Acad. M. Popov Institute of Plant Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl.21, 1113 Sofia, Bulgaria
autor
  • Acad. M. Popov Institute of Plant Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl.21, 1113 Sofia, Bulgaria
Bibliografia
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Typ dokumentu
Bibliografia
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