| Main Title |
Effects of Nitrate and Phosphate Limitation on Cyclostat Growth of Two Freshwater Diatoms (Journal Version). |
| Author |
Gotham, Ivan J. ;
Rhee, G-Yull ;
|
| CORP Author |
New York State Dept. of Health, Albany. Div. of Labs. and Research.;Environmental Research Lab.-Duluth, MN. |
| Year Published |
1982 |
| Report Number |
EPA-R-804689; EPA-600/J-82-366; |
| Stock Number |
PB83-243550 |
| Additional Subjects |
Diatoms ;
Nitrates ;
Phosphates ;
Toxicology ;
Cells(Biology) ;
Fresh water ;
Reprints ;
Asterionella formosa ;
Fragilaria crotonensis ;
Cyclostat
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB83-243550 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
The effects of N and P limitation on cell division and on cellular contents of limiting and non-limiting nutrients were examined in cyclostat cultures of the freshwater diatoms Asterionella formosa and Fragilaria crotonensis. Nutrient-limited cell cycles of both species were readily entrained by a 14 h/10 h light/dark cycle. In F. crotonensis, the maxima relative to the onset of the light phase of the photocycle occurred at approximately -1 to +1 h for cell division, + or - 11 to 13 h for cell N, and +21 to 23 h for cell P. In A. formosa the maxima occurred at approximately +3 to 10 h for cell division and +2 to 4 h for cell N and cell P. Changes in culture dilution rate (integrated growth) and in the type of nutrient limiting growth did not significantly alter these times for either species. |
| Availability Notes |
Pub. in Jnl. of General Microbiology 128, p199-205 1982. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Effects of Nitrate and Phosphate Limitation on Cyclostat Growth of Two Freshwater Diatoms (Journal Version). |
| PUB Date Free Form |
c1982 |
| Category Codes |
6T; 6F; 57Y; 68D |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
332921753 |
| Origin |
NTIS |
| Type |
CAT |
