Atmospheric CO2 Enrichment Helps Plants Recover from Droughts
Chen, Y., Yu, J. and Huang, B. 2015.
Effects of elevated CO2 concentration on water relations and photosynthetic responses to drought stress and recovery during re-watering in tall fescue.
Journal of the American Society of Horticultural Science 140: 19-26.
Introducing their study, Chen et al. (2015) write that “drought stress is one of the most detrimental abiotic stresses for plant growth,” in that it “leads to stomatal closure and reduces photosynthesis resulting from restricted CO2 diffusion through leaf stomata and inhibition of carboxylation activity,” as described by Flexas et al. (2004). And they thus note that “minimizing cellular dehydration and maintaining active photosynthesis are key strategies for plant survival or persistence through dry-down periods,” as is described in more detail by Nilsen and Orcutt (1996).