Niechayev N. A., Mayer J. A., Cushman J. C., Developmental dynamics of crassulacean acid metabolism (CAM) in Opuntia ficus-indica, Annals of Botany, 2023, 132(4):869-879, doi: 10.1093/aob/mcad070
The development of CAM metabolism in Opuntia ficus-indica seedlings and young cladodes assessed through daily CO₂ exchange, tissue acidity and carbon isotope composition. The paper shows growing organs shifting from a negative CO₂ exchange balance to predominantly nocturnal assimilation.