| | DIALOG Dissertation Abstracts (Site not responding. Last check: 2007-10-30) |
 | | The variability of the abundance and diversity of populations of heterotrophic bacteria capable of NO3 utilization was studied in relation to patterns of bacterial NO3 uptake as indicated by 15N uptake experiments. |
 | | Of the different variables assayed, NO3 uptake rate was the best predictor, by a factor of 15, of the variability associated with nasA community structure. |
 | | The finding that NO3 availability and patterns of NO3 utilization are positively correlated with nasA community structure variability and the abundance of particular groups of nasA genes, indicates that patterns of NO3 supply, in the marine environment, are sufficiently important to be a factor in regulating bacterial communities. |
| www.aslo.org /phd/dialog/200204-4.html (382 words) |