A huge share of photosynthetic activity also takes place well below tree level, including the very considerable contribution of the oceanic biomass.

Thus low amounts of Mg lead to a decrease in photosynthetic and enzymatic activity within the plants.

At high concentrations of Cd, growth is inhibited, however, photosynthetic activity does not appear to be affected.

Phytoplankton account for half of all photosynthetic activity on Earth.

This decreases the photosynthetic activity and therefore affects gamma.

The bacteria accumulated in the regions of red and blue light, showing that these wavelengths of light generated the most photosynthetic activity.

In North America, some boreal forests actually experienced "browning" (less photosynthetic activity) over the study period.

CAM plants have a unique ability to fix carbon at night creating a temporal difference in photosynthetic activities to conserve water and increase efficiency.

The critical point is the effect of depth on illumination, which affects the photosynthetic activity of symbiotic algae.

In daylight the photosynthetic activity of these plants produces oxygen which dissolves in the seawater where it is used by marine animals.