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JOURNAL ARTICLE <br /> Feeding the world: impacts of elevated [CO2] on nutrient content of greenhouse grown fruit <br /> crops and options for future yield gains <br /> ,,,, <br /> Horticulture Research,Volume 10,Issue 4,April 2023,uhadO26,https://doi.org/10.1093/hr/uhadO26 <br /> Published: 21 February 2023 Article history v <br /> Abstract <br /> Several long-term studies have provided strong support demonstrating that growing crops under elevated[CO2]can increase photosynthesis <br /> and result in an increase in yield,flavour and nutritional content(including but not limited to Vitamins C,E and pro-vitamin A).In the case of <br /> tomato,increases in yield by as much as 80%are observed when plants are cultivated at moo ppm[CO2],which is consistent with current <br /> commercial greenhouse production methods in the tomato fruit industry.These results provide a clear demonstration of the potential for <br /> elevating[CO2]for improving yield and quality in greenhouse crops.The major focus of this review is to bring together 5o years of <br /> observations evaluating the impact of elevated[CO2]on fruit yield and fruit nutritional quality.In the final section,we consider the need to <br /> engineer improvements to photosynthesis and nitrogen assimilation to allow plants to take greater advantage of elevated CO2 growth <br /> conditions. <br /> Issue Section: Review Article <br /> Introduction <br /> Elevated[CO2](e[CO2])has been shown to significantly improved light saturated photosynthetic carbon assimilation rates(ASat)by increasing the <br /> efficiency of Rubisco CO2 assimilation(carboxylation)over the alternate RuBP oxygenation(02 assimilation),which results in enhanced growth <br /> and yield[i,2](Figure 1). <br /> Small Large <br /> elevation in elevation in <br /> Ico,l [t0,1 <br /> Ambient[CO,i <br /> 420 ppm <br /> Rubisco rate As 100A surpasses 550 Since Rubisco already <br /> limiting In CRC. ppm A,.is limited by the saturated,further <br /> leading to reduced rate of RuBP regeneration. increase in yield not <br /> carbon assimilation Rubisco no longer rate necessarily seen <br /> and plant biomass limiting <br /> 1 <br /> 11fIncreased carbon <br /> Increased assimailtion and Increased <br /> fertilisation biomass fertilisation <br /> IIs there art optimal <br /> [CO,l to increase yield <br /> without compromising <br /> quality? <br /> Figure 1 Schematic representation of elevated[CO2]on carbon assimilation.Created with BioRender.com <br /> PDF <br /> Helps',�W <br /> Oxford University Press uses cookies to enhance your experience on our website.By selecting`accept all'you are agreeing to our use of cookies.You can change your cookie setting <br /> More information can be found in our Cookie Policy. <br />