Drought-induced shifts in daily CO2 uptake patterns for leafy cacti

@inproceedings{Nobel1987DroughtinducedSI,
  title={Drought-induced shifts in daily CO2 uptake patterns for leafy cacti},
  author={Park S. Nobel and Terry L. Hartsock},
  year={1987}
}
For cacti with persistent, relatively large leaves, most shoot CO2 uptake under well-watered conditions occurs by the leaves using the C3 pathway. For three species in the primitive subfamily Pereskioideae, droughts of 7 or 14 days decreased leaf daytime net CO2 uptake by an average of 49 and 88%, respectively; these species always had a net CO2 release at night by the leaves and both at night and during the day by the stems. For three leafy species in subfamily Opuntioideae, 7 and 14 days of… CONTINUE READING