
TY  - JOUR
A1  - Meyer, CP 
A1  - Canny, MJ 
T1  - CO<sub>2</sub> Storage in <I>Eucalyptus</I> Oil Glands; a Hypothesis Disproved
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1975
VL  - 2
IS  - 4
SP  - 647
EP  - 658
KW  - 
UR  - https://doi.org/10.1071/PP9750647 
N2  - CO2 is known to be highly soluble in oils. The hypothesis investigated was that the contents of leaf oil glands in Eucalyptus spp, might constitute a significant reservoir for CO2 within the leaf. Solubilities of CO2 in extracted oil from E. socialis leaves were measured and found to be 3-6 times that of CO2 in water. The volume of oil glands constitutes up to 12% of the total leaf volume. It is shown that the possible capacity of this reservoir for CO2 could at most amount to the equivalent of about 35 min of dark respiration, and therefore could not constitute a significant internal reservoir in the dark period. There appears to be a correlation between oil-gland percentage volume and the rainfall where the trees grew. Values are given for the percentage volume of the other tissues of the leaf and for cuticular resistance to CO2 diffusion. 
ER  -

