5 resultados
Chlororespiration has been defined as a respiratory electron transport chain in interaction with photosynthetic electron transport involving both non-photochemical reduction and oxidation of plastoquinones. Different enzymatic activities, including a plastid-encoded NADH dehydrogenase complex, have
Radial expansion of root cells and elongation of root hairs were induced within 3 d of a massive dose (3 kGy) of gamma irradiation to Arabidopsis thaliana. Because treatment with the antioxidant n-propyl gallate before irradiation suppressed these changes, gamma irradiation partially rescued the
The plant-type ubiquinol:oxygen oxidoreductase, commonly called the alternative oxidase, is a respiratory enzyme thought to contain non-heme iron at its active site. To explore the structure of the enzyme by identifying amino acids involved in inhibitor-binding, a library of random mutants of the
We have presented changes in the photosynthetic apparatus activity of Arabidopsis thaliana plants occurring within 15-144 h of 100 microM Cu or Cd action with regard to jasmonate (JA) as well as expression of the oxidative stress and non-enzymic defense mechanisms. The inhibitory effect of both
The effects of short-term salt stress on gas exchange and the regulation of photosynthetic electron transport were examined in Arabidopsis (Arabidopsis thaliana) and its salt-tolerant close relative Thellungiella (Thellungiella halophila). Plants cultivated on soil were challenged for 2 weeks with