Hi all,
A paper has come my way that I thought might be of interest. : <"Photosynthetic acclimation of terrestrial and submerged leaves in the amphibious plant Hygrophila difformis">.
It is "Open Access", so should be available to every-one.
It is quite interesting, it suggests that ethylene is the substance that regulates the production of the dissected submerged leaf, and that all submerged leaves (including morphologically terrestrial ones) have the ability to utilise bicarbonate (HCO3-) as a carbon source.
A paper has come my way that I thought might be of interest. : <"Photosynthetic acclimation of terrestrial and submerged leaves in the amphibious plant Hygrophila difformis">.
It is "Open Access", so should be available to every-one.
It is quite interesting, it suggests that ethylene is the substance that regulates the production of the dissected submerged leaf, and that all submerged leaves (including morphologically terrestrial ones) have the ability to utilise bicarbonate (HCO3-) as a carbon source.
cheers DarrelHygrophila difformis, a heterophyllous amphibious plant, develops serrated or dissected leaves when grown in terrestrial or submerged conditions, respectively.
In this study, we tested whether submerged leaves and ethylene-induced leaves of .....H. difformis have improved photosynthetic ability under submerged conditions. ........Submerged leaves and submerged terrestrial leaves were able to use bicarbonate but submerged terrestrial leaves had an intermediate ability to use HCO3−