CO2 ccm's is likely what he meant.
CCM=> search APD=> Carbon concentrating mechanisms.
Big with algae.
C4 does it spacially, CAM does it temporally. Any malate type storage can act as a CCM to increase RUSICO effieincy.
Indirect vs direct Bicarb use is a sub heading perhaps
No sure what he meant based on what you said here with lower plants.
Email me off list for more on CO2.
Regards,
Tom Barr |