Simulating C3-to-CAM transition under ancient atmospheric conditions
Sarkar, D.; Kundu, S.
Show abstract
Crassulacean Acid Metabolism (CAM) plants can survive in arid environment. CAM is hypothesized to evolve from C3 metabolism about 20 to 30 million years ago (MYA) when the Earth faced declining atmospheric CO2 concentration ([CO2]a), increasing aridity and decreasing temperature. Understanding whether and how these atmospheric changes favour C3-to-CAM transition will help in engineering CAM into crop plants to tackle the threat of global climate change. Our simulations of plant cellular metabolism under the changing atmospheric conditions of ancient time observe C3-to-CAM transition, capture possible temporal alterations of active metabolic pathways and further confirm that both the reduced [CO2]a and increased water scarcity associated with higher aridity, can act as evolutionary agents, driving the C3-to-CAM transition. Although the predicted elevated [CO2]a of future reveals a reversion towards C3-like behaviour, drought always favours CAM regardless of [CO2]a and temperature levels. Moreover, a minimum oxygen concentration is needed to support higher nocturnal respiration, necessary for CAM.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Metabolism is a major driver of hydrogen isotope fractionation recorded in tree-ring glucose of Pinus nigra 94%
- Revisiting the carbon isotope discrimination and water use efficiency relation: the influence of mesophyll conductance 94%
- In silico analysis of the evolution of root phenotypes during maize domestication in Neolithic soils of Tehuacan 93%
Similar papers in this journal
- Incorporating photosynthetic acclimation improves stomatal optimisation models 95%
- Dissecting Succulence: Crassulacean Acid Metabolism and Hydraulic Capacitance are Independent Adaptations in Clusia Leaves 94%
- Physiological trait networks enhance understanding of crop growth and water use in contrasting environments 93%
Similar papers in this journal
- Analysis of companion cell and phloem metabolism using a transcriptome-guided model of Arabidopsis metabolism 94%
- BoolSim, a Graphical Interface for Open Access Boolean Network Simulations and Use in Guard Cell CO2 Signaling 93%
- Thermal acclimation fails to confer a carbon budget advantage to invasive species over natives 92%
Similar papers in this journal
- Cytosolic fumarase acts as a metabolic fail-safe for both high and low temperature acclimation of Arabidopsis thaliana 94%
- Intramolecular carbon isotope signals reflect metabolite allocation in plants 93%
- Phylogenetically diverse wild plant species use common biochemical strategies to thrive in the Atacama Desert 93%
Similar papers in this journal
- A critical role of stable grain filling rate in maximizing rice yield revealed by whole plant carbon nitrogen interaction modeling 94%
- The Arabidopsis Framework Model version 2 predicts the organism-level effects of circadian clock gene mis-regulation 93%
- Identifying and quantifying the contribution of maize plant traits to nitrogen uptake and use through plant modelling 92%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.