| Main Title |
Nutritional Requirements of the Submerged Angio-Sperm 'Ruppia maritima' in Algae-Free Culture. |
| Author |
Thursby, G. B. ;
|
| CORP Author |
Environmental Research Lab., Narragansett, RI. ;Rhode Island Univ., Kingston. Dept. of Botany. |
| Year Published |
1984 |
| Report Number |
EPA-600/J-84-047 ;CONTRIB-580; |
| Stock Number |
PB84-222660 |
| Additional Subjects |
Aquatic plants ;
Plant nutrition ;
Growth ;
Brackish water ;
Vitamins ;
Metals ;
Iron ;
Inorganic phosphates ;
Concentration(Composition) ;
Inorganic nitrates ;
Tissues(Biology) ;
Requirements ;
Reprints ;
Ruppia maritima ;
Vascular plants
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB84-222660 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
Ruppia maritima has the potential to become a model laboratory organism for studies with submerged aquatic vascular plants. The present study demonstrated that algae-free R. maritima grew well in a defined medium without sediment. Growth was a linear response to photon flux density over the range of light tested. Vitamins may be a necessary addition in artificial seawater. Trace metals caused little or no increase in growth during short-term (3 wk) growth studies, but appear to be required for long-term cultivation. Iron also caused no increase in growth, at the concentrations tested, but plants were greener in 1.46 micrometers M iron. A nitrate concentration of 110 micrometers M and a phosphate concentration of 2.3 micrometers M were sufficient for maximum growth. However, 4.5 micrometers M phosphate eliminated occasional CaCO3 precipitation in stock cultures. Critical tissue nitrogen content was between 2.5 and 3.0%, and critical phosphorus content between 0.25 and 0.35%. A comparison with field data suggests that R. maritima was deficient in both nitrogen and phosphorus during much of the summer. |
| Supplementary Notes |
Prepared in cooperation with Rhode Island Univ., Kingston. Dept. of Botany. |
| Availability Notes |
Pub. in Marine Ecology Progress Series, v16 p45-50 1984. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Nutritional Requirements of the Submerged Angio-Sperm 'Ruppia maritima' in Algae-Free Culture. |
| PUB Date Free Form |
c1984 |
| Category Codes |
8A; 47D |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/05 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
428625133 |
| Origin |
NTIS |
| Type |
CAT |
