Net photosynthetic CO2 assimilation: more than just CO2 and O2 reduction cycles - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue New Phytologist Année : 2019

Net photosynthetic CO2 assimilation: more than just CO2 and O2 reduction cycles

(1) , (1)
1

Résumé

Net photosynthetic assimilation in C3 plants is mostly viewed as a simple balance between CO2 fixation by Rubisco‐catalyzed carboxylation and CO2 production by photorespiration (and to a lower extent, by day respiration) that can be easily manipulated during gas exchange experiments using the CO2 : O2 ratio of the environment. However, it now becomes clear that it is not so simple, because the photosynthetic response to gaseous conditions involves ‘ancillary’ metabolisms, even in the short‐term. That is, carbon and nitrogen utilization by pathways other than the Calvin cycle and the photorespiratory cycle, as well as rapid signaling events, can influence the observed rate of net photosynthesis. The potential impact of such ancillary metabolisms is assessed as well as how it must be taken into account to avoid misinterpretation of photosynthetic CO2 response curves or low O2 effects in C3 leaves.

Dates et versions

hal-02557436 , version 1 (28-04-2020)

Identifiants

Citer

Guillaume Tcherkez, Anis M. Limami. Net photosynthetic CO2 assimilation: more than just CO2 and O2 reduction cycles. New Phytologist, 2019, 223 (2), pp.520-529. ⟨10.1111/nph.15828⟩. ⟨hal-02557436⟩
16 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More