Stevia rebaudiana under a CO2 Enrichment Atmosphere: Can CO2 Enrichment Overcome Stomatic, Mesophilic and Biochemical Barriers That Limit Photosynthesis?

Due to the desire live a healthier lifestyle, search for nonglycosidic sweeteners has increased stevioside production in recent years. The main goal of this study was demonstrate that S. rebaudiana grown CO2-enriched environment can overcome stomatic, mesophilic and biochemical barriers limit photosynthesis (AN). We show an with atmosphere (800 1200 µmol CO2 mol?1), genotype 16 (G16) shows increase 17.5% AN 36.2% stomatal conductance plants 800 mol?1 when compared non-enriched plants. In conjunction issue, efficient mechanism dissipating excess energy captured by photosystems. Photosystem II efficiency at plants, both 4 (25.4%) G16 (211%). addition, high activity Calvin–Benson enzymes, sugars enhanced steviosides were combined horticultural yield. Both genotypes (G4 G16) showed excellent physiological indicators, superiority G16. Thus, our demonstrated could adapt global climate change scenarios higher temperatures caused atmospheric CO2.