Scientists Develop Potatoes Resilient to Heatwaves

Researchers are cultivating potato varieties engineered to endure heatwaves, aiming to support crop growth in a future impacted by climate change. A research group from the University of Essex conducted field experiments in the US state of Illinois, observing that a modified plant produced as much as 30% more potatoes when subjected to heat stress. This outcome was achieved by incorporating two genes, which altered the plant’s photorespiration process, thereby allocating additional energy towards enhanced growth. The authors of the study, which appeared in the journal Global Change Biology, characterized this development as “a promising avenue for yield increases in the face of a warming planet”. Further multi-location field trials are required to corroborate the team’s discoveries across diverse environmental conditions. The RIPE project involved a team spearheaded by Dr Katherine Meacham-Hensold, comprising individuals from both the University of Illinois and the University of Essex. Dr Meacham-Hensold stated that the initiative sought to address food requirements in areas most vulnerable to global warming. She commented, “The 30% increase in tuber mass observed in our field trials shows the promise of improving photosynthesis to enable climate-ready crops.” Additionally, the research indicated that the genetic engineering had no adverse effect on the potato’s nutritional content. Dr Amanda Cavanagh, affiliated with the University of Essex, remarked: “Our major food crops are under threat from climate change and our work has now confirmed that strategies to increase thermotolerance will translate from model to food crops.” This endeavor holds the potential for significant influence in the developing world, assisting in the protection of crops for populations most directly affected by climate change.