Počátek aktivního metabollsmu v časném stadiu bobtuání semenphaseolus aureus
- 1 November 1973
- journal article
- Published by Institute of Experimental Botany in Biologia plantarum
- Vol. 15 (6) , 398-404
- https://doi.org/10.1007/bf02922759
Abstract
Metabolism of dry mungbean seeds(Phaseolus aureus) was compared with that of 3 h imbibed ones. Respiration rates sharply increased upon imbibition which was accompanied by large water uptake. Storage protein was degraded resulting in the rise in soluble nitrogen. RNA and water soluble protein content increased but DNA declined. It is suggested that some of the soluble nitrogen pools are diverted to RNA formation which in turn produce enzyme protein. In mungbean seeds imbibition of water thus triggers a series of metabolic changes within 3 h with the respiratory energy as the driving force. Metabolismus somenPhaseolus aureus po 3 h bobtnání byl srovnáván s metabolismem suchých semen. Béhem bobtnání prudce stoupala rychlost dýchání. Byly odbourávány zásobní proteiny, následkem čehoí stoupal obsah rozpustného dusíku. Obsah RNA a bílkovin rozpustných ve vodě se zvyšoval, obsah DNA se snižoval. To naznačuje, íe části rozpustného dusíku bylo použito tvorbě RNA, která obratem produkovala enzymatické proteiny. Příjem vody při bobtnání tedy už během 3 h zahajuje sérii metabolickych změn; jejich hnaoí silou je respirační energie.Keywords
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