Wednesday, March 12, 2008



Credit: Richard W. Castenholz, University of Oregon

Sausage-shaped cells are unicellular cyanobacteria (Synechococcus) and filaments are green nonsulfur bacteria.

Photosynthesis by plants, algae, and some bacteria supports nearly all living things by producing food from sunlight, and in the process these organisms release oxygen and absorb carbon dioxide.

NEW: Some marine microorganisms get a significant proportion of their energy without a net release of oxygen or uptake of carbon dioxide. This discovery will influence the way we understand the photosynthesis. It will also have impacts on our understanding on how microorganisms in the oceans affect rising levels of atmospheric carbon dioxide.

No comments: