Transcriptomic analyses reveal the mechanisms of CO2 enrichment in promoting the growth and quality in Lactuca sati-va

To explore the effect of CO2 on lettuce growth and better understand the mechanism of CO2 in lettuce cultivation, 3 kinds of lettuce with 4 real leaves were selected and planted in a solar greenhouse. After the treatment with enrichment of CO2, growth potential of lettuce was enhanced. These results suggested that the growth and nutritional quality of lettuce could be improved by increasing the enzyme activity and gene expression levels of photosynthesis, hormone signaling and carbohydrate metabolism.