Botany online 1996-2004. No further update, only historical document of botanical science!

Species of The Genus Aeonium Display Different CAM Behaviours

The shown values have been obtained under laboratory conditions. CAM plants are characterized by a steep maximum of photosynthesis at daybreak (R. LÖSCH, 1985).



A. Aeonium haworthii: a strong CAM plant. The influence of the temperature on the nightly accumulation of CO2 is small.


B.Aeonium tabulaeforme: displays only little CAM behaviour. The nightly accumulation of CO2 is dependent on the temperature.


C. Aeonium goochiae: a nearly typical C3 plant. Only around 30 °C can a weak CAM behaviour be detected (negative CO2 balance).

© Peter v. Sengbusch - b-online@botanik.uni-hamburg.de