Table 2.
Functional classification of photosynthetic types and example species.
| Type | C3 | Proto-Kranz | C2 | C2+C4 | C4 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Subtype | - | - | - | NADP-ME | NAD-ME | PCK | NADP-ME | NADP-ME (+PCK) | NAD-ME | PEPCK (NADP-ME) | PEPCK (NAD-ME) |
| Example | Triticum aestivum | Heliotropium procumbens | Mollugo verticillata | Flaveria pubescens | Alternanthera tenella | Alloteropsis semialata | Sorghum bicolor | Zea mays | Panicum sp. (sensu stricto) | Alloteropsis semialata ssp. semialata | Spartina sp. |
| GDC compartmentalization | no | partial | full | full | full | full | full | full | full | full | full |
| Rubisco compartmentalization | no | partial | partial | partial | partial | partial | full | full | full | full | full |
| PEPC engagement | no | no | no | partial | partial | partial | full | full | full | full | full |
| PEPCK engagement | no | no | no | no | no | partial | no | partial | no | full | full |
| MDH engagement in the M | no | no | no | partial | no | partial | full | full | no | potentially active | no |