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SOURCE-SINK BALANCE AND CARBON ALLOCATION BELOW GROUND IN PLANTS EXPOSED TO OZONE
Citation:
Andersen, C P. SOURCE-SINK BALANCE AND CARBON ALLOCATION BELOW GROUND IN PLANTS EXPOSED TO OZONE. NEW PHYTOLOGIST. Blackwell Publishing, Malden, MA, 157:213-228, (2003).
Description:
The role of tropospheric ozone in altering plant growth and development has been the subject of thousands of publications and dozens of reviews over the last several decades. There is still limited understanding, however, regarding the possible effects of ozone on soil processes. The effect of ozone on the flow of carbon from the atmosphere, through the plant to soils, and back to the atmosphere is followed. A conceptual model based on carbohydrate signaling is used to illustrate physiological changes in response to ozone, and to discuss possible feedback effects that may occur. Despite past emphasis on above-ground effects of ozone stress, ozone has the potential to alter below-ground processes and hence ecosystem characteristics in ways that are not currently being considered.