In general, bryophytes show an immediate positive response of photosynthesis to elevated CO2, but the longer term effect is usually reduced by down-regulation or feedback inhibition of photosynthesis, or other limitations on production and growth. In bryophytes, enhanced short-term photosynthesis may or may not be reflected in increased production. The present ambient CO2 concentration can be suboptimal for mosses, so short-term laboratory experiments show a positive response to elevated CO2. When exposure to elevated CO2 lasts for a prolonged time (20-40 days), the primary advantageous effects start to decline and signs of negative, downward acclimation of photosynthetic system in mosses can also be detected. Our paper summarizes present knowledge of the ecophysiological responses to elevated air CO2 of mosses including peat mosses.
|Number of pages||6|
|Journal||Physiology and Molecular Biology of Plants|
|Publication status||Published - Jan 1 2005|
ASJC Scopus subject areas
- Molecular Biology
- Plant Science