In CAM, malic acid accumulates during the night, and its dissociation releases hydrogen ions, exchanged for potassium; endosmosis causes turgidity and stomatal opening. Starch accumulates during the day. Thus, the C4 pathway occurs at night and the C3 pathway during the day; phosphoenolpyruvic acid is regenerated at night from starch.
Nel CAM, l'acido malico si accumula durante la notte e la sua dissociazione rilascia ioni idrogeno, scambiati con potassio; l'endosmosi causa turgidità e apertura degli stomi. L'amido si accumula di giorno. Pertanto, il percorso C4 avviene di notte e il percorso C3 di giorno; l'acido fosfoenolpiruvico viene rigenerato di notte dall'amido.
| Front | brief description of CAM |
|---|---|
| Back | malic acid accumulates during the night dissociation of malic acid causes release of hydrogen ions hydrogen ions are exchanged with potassium ions endosmosis causes turgidity and opening of stomata starch accumulated during the day thus C4 pathway occurs during the night and C3 pathway during the day phosphoenolpyruvic acid regenerated during the night from starch |
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