Transgenic strategies to improve the thermotolerance of photosynthesis

Over two growing seasons, a chloroplast localized synthetic glycolate metabolic pathway expressed in potato, enhanced tuber biomass. We confirmed that this yield benefit did not come at the cost of tuber quality. In 2022, after two early season natural heatwaves, we observed enhanced daily carbon assimilation rates and increased photosynthetic capacity, with transformed plants having up to 23% higher Vcmax and 13% higher Jmax during tuber bulking stages, indicating that transformed plants were better able to withstand growing season heatwaves than untransformed controls. The increases in photosynthetic capacity and potato tuber mass after early season heatwaves were greater than in seasons without heatwaves and present the AP3 pathway as a promising avenue for yield increases in the face of forecast increased intensity and duration of heatwave events as a result of global warming.

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Transgenic strategies to improve the thermotolerance of photosynthesis

Cited by 3 publications

References 113 publications

Preface to the special issue: the keynote lectures of the 18th International Congress on Photosynthesis Research

Preface to the special issue: the keynote lectures of the 18th International Congress on Photosynthesis Research

Rubisco activity and activation state dictate photorespiratory plasticity in Betula papyrifera acclimated to future climate conditions

Shortcutting Photorespiration Protects Potato Photosynthesis and Tuber Yield Against Heatwave Stress

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