Access
To read this story in full you will need to login or make a payment (see right).
Scientific Correspondence
Nature 388, 132 (10 July 1997) |
Open Innovation Challenges
-
Single-cell Analysis Platform
This Challenge is looking for novel approaches to analyzing changes at a single-cell level. This is...
-
Optimizing Sub-cellular Localization Tags
The Seeker is looking for methods to optimize sub-cellular localization tags for protein expression....
- More Challenges
- Powered by:
nature jobs
Faculty Position in Chromosome and Cell Cycle Research
- OMRF
- Oklahoma City, OK 73104, United States
Senior Scientist, Cellular & Molecular Pharmacology
- Cortex Search Inc.
- Vancouver, British Columbia
Photosynthesis or planktonic respiration?
Richard J. Geider1
Abstract
The nutrient-poor (oligotrophic) regions of the open ocean cover 30% of the Earth's surface. Microscopic plants (phytoplankton) living in this habitat account for about 10% of global CO2fixation1. Most of this organic production is rapidly respired within a microbial food web dominated by photosynthetic bacteria, heterotrophic bacteria and small (<5 
m diameter) protozoa and algae, with a small amount (about 1% of global co2fixation) being exported from nutrient-poor upper ocean regions to the interior of the ocean2,3. Thus, on average, photosynthesis exceeds respiration in the sunlit 'euphotic' zone of the oligotrophic ocean. This view appears to have been challenged by del Giorgio and co-workers4.
To read this story in full you will need to login or make a payment (see right).
