Self-pollination of diploid zonal geranium (Pelargonium x hortorum L.H. Bailey) florets leads to a dramatic rise in ethylene production, followed by abscission within 4 h. Neither wounding of the stigma, pollination with tetraploid pollen, nor heat-killed self pollen could elicit as much ethylene
In this study we exposed variegated leaves of Pelargonium zonale to strong sunlight (>1100μmolm-2s-1 of photosynthetically active radiation) with and without paraquat (Pq), with the aim to elucidate the mechanisms of H2O2 regulation in green and white tissues with respect to the
Calcium oxalate crystals are widespread among animals and plants. In land plants, crystals often reach high amounts, up to 80% of dry biomass. They are formed within specific cells, and their accumulation constitutes a normal activity rather than a pathological symptom, as occurs in animals. Despite
Two Pelargonium 1-aminocyclopropane-1-carboxylate (ACC) synthase cDNAs (GAC-1 and GAC-2) were identified and characterized. GAC-1 is 1934 bp long with a 1446-bp open reading frame encoding a 54.1-kD polypeptide. GAC-2 is a 1170-bp-long ACC synthase polymerase chain reaction fragment encoding 390
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