Abstract
Nitrogen (N) is central for plant growth, and metabolic plasticity can provide a strategy to respond to changing N availability. We showed that two local A. thaliana populations exhibited differential plasticity in the compounds of photorespiratory and starch degradation pathways in response to three N conditions. Association of metabolite levels with growth‐related and fitness traits indicated that controlled plasticity in these pathways could contribute to local adaptation and play a role in plant evolution.
Highlights
Nitrogen (N) is required for the synthesis of nucleotides, amino acids, and proteins, and is central for plant growth and reproduction
Plasticity, an ability of an organism to change its phenotype in different environments, could help plants to optimize their growth under changing N conditions
Not as much is known about metabolic plasticity and its role in plant growth in local A. thaliana populations adapted to different habitats
Summary
Nitrogen (N) is required for the synthesis of nucleotides, amino acids, and proteins, and is central for plant growth and reproduction. Not as much is known about metabolic plasticity and its role in plant growth in local A. thaliana populations adapted to different habitats. We hypothesized that differential plasticity in pathways at the interface between carbon and N metabolism underpins the adjustment of plant populations toward optimal fitness at different N availabilities.
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