Table 2.
δ2Hne Starch [‰] | δ2Hne Sugar [‰] | δ2Hne Cellulose [‰] | Difference in δ2Hne [‰] | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Species | Mean | SD | Mean | SD | Mean | SD | Cell‐starch | Sugar‐starch | Cell‐sugar | |
C 3 | Cannabis sativa | −125.0 | 27.1 | −99.4 | 15.9 | −56.1 | 6.4 | 68.9 | 25.6 | 43.3 |
Solanum cheesmaniae | −147.0 | 17.2 | −99.4 | 6.9 | −78.4 | 6.1 | 68.6 | 47.6 | 21 | |
Salvia hispanica | −133.9 | 23.3 | −75.9 | 9.1 | −50.0 | 18.1 | 83.8 | 58.0 | 25.8 | |
Abelmoschus esculentus | −126.1 | 12.3 | −110.5 | 7.3 | −63.4 | 10.6 | 62.7 | 15.5 | 47.1 | |
Hordeum vulgare | −76.7 a | a | −74.8 | 5.1 | −59.0 | 4.9 | 17.7 | 1.9 | 15.8 | |
mean | −121.7 | 20.0 | −92.0 | 8.9 | −61.4 | 9.2 | 60.3 | 29.7 | 30.6 | |
C 4 | Zea mays | −60.6 a | a | −44.8 | 2.6 | −7.7 | 9.3 | 52.9 | 15.8 | 37.1 |
Sorghum bicolor | −61.2 a | a | −20.2 | 3.7 | −25.3 | 6.7 | 35.9 | 41.0 | −5.1 | |
mean | −60.9 | a | −32.5 | 3.2 | −16.5 | 8.0 | 44.4 | 28.4 | 16.0 | |
CAM | Portulaca grandiflora | −24.8 | 33.7 | −12.8 | 15.1 | 14.9 | 5.7 | 39.7 | 11.9 | 27.7 |
Kalanchoe daigremontiana | −18.0 | 2.3 | −13.2 | 3.6 | −5.6 | 5.3 | 12.4 | 4.8 | 7.6 | |
Phalaenopsis | 12.1 a | a | 44.2 | 2.2 | 23.3 | 1.2 | 11.2 | 32.1 | −20.9 | |
mean | −10.2 | 18.0 | 6.0 | 6.9 | 10.9 | 4.0 | 21.1 | 16.3 | 4.8 |
Note: Plant species differing in photosynthetic pathways were grown under the same controlled conditions.
Due to low yields, starch samples of three replicates were pooled for H. vulgare, Z. mays, S. bicolor and Phalaenopsis, and thus could be only measured once.