Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers
We determined the growth, nutrient (PO43–, NO3–, NH4+) uptake and proximate composition of Rhodomonas sp. cultured during seven days in batch culture using f/2 medium and agricultural fertilizers. The growth rate was similar with both media (µ = 0.37 and 0.38 day–1). Protein content in Rhodomonas sp...
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Iniversidad Autónoma de Baja California
2005
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agricultural fertilizers proximate composition nutrient uptake Rhodomonas sp. fertilizantes consumo de nutrientes composición proximal Rhodomonas sp. |
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agricultural fertilizers proximate composition nutrient uptake Rhodomonas sp. fertilizantes consumo de nutrientes composición proximal Rhodomonas sp. Valenzuela-Espinoza, E Lafarga-De-La-Cruz, F Millán-Nuñez, R Núñez-Cebrero, F Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| description |
We determined the growth, nutrient (PO43–, NO3–, NH4+) uptake and proximate composition of Rhodomonas sp. cultured during seven days in batch culture using f/2 medium and agricultural fertilizers. The growth rate was similar with both media (µ = 0.37 and 0.38 day–1). Protein content in Rhodomonas sp. cultured with f/2 medium was higher than with agricultural fertilizers (10.7 and 8.96 pg cell–1, respectively). Carbohydrate and lipid contents decreased during the exponential growth phase and there were no significant differences (P = 0.027 and 0.08, respectively) between both experiments. Carbohydrate content was higher during the slow growth phase in cultures using f/2 medium, whereas lipid content showed little variation during the slow growth phase, but was higher in cells cultured using agricultural fertilizers. During the first five days, total phosphate uptake by Rhodomonas sp. was 39.9 µM (94.3%) in the f/2 medium and 40 µM (99%) in the agricultural fertilizer medium. A total of 667.3 µM of nitrate (72.2%) was consumed during the first four days in the f/2 medium, whereas in the agricultural fertilizer medium formulated with ammonium nitrate, ammonium uptake (418.1 µM, 78.7%) in the first three days was higher than nitrate uptake (37.7 µM, 7.3%); however, when ammonium concentration decreased to 1.83 µM, the nitrate uptake increased. In conclusion, the cellular quantity and quality of Rhodomonas sp. was similar when both media were used and agricultural fertilizers can be used in marine aquaculture programs. |
| format |
info:eu-repo/semantics/article |
| author |
Valenzuela-Espinoza, E Lafarga-De-La-Cruz, F Millán-Nuñez, R Núñez-Cebrero, F |
| author_facet |
Valenzuela-Espinoza, E Lafarga-De-La-Cruz, F Millán-Nuñez, R Núñez-Cebrero, F |
| author_sort |
Valenzuela-Espinoza, E |
| title |
Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| title_short |
Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| title_full |
Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| title_fullStr |
Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| title_full_unstemmed |
Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| title_sort |
growth, nutrient uptake and proximate composition of rhodomonas sp. cultured using f/2 medium and agricultural fertilizers |
| publisher |
Iniversidad Autónoma de Baja California |
| publishDate |
2005 |
| url |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/77 |
| _version_ |
1792609853140631552 |
| spelling |
repositorioinstitucional-20.500.12930-73202023-05-09T14:30:50Z Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers Growth, nutrient uptake and proximate composition of Rhodomonas sp. cultured using f/2 medium and agricultural fertilizers Valenzuela-Espinoza, E Lafarga-De-La-Cruz, F Millán-Nuñez, R Núñez-Cebrero, F agricultural fertilizers proximate composition nutrient uptake Rhodomonas sp. fertilizantes consumo de nutrientes composición proximal Rhodomonas sp. We determined the growth, nutrient (PO43–, NO3–, NH4+) uptake and proximate composition of Rhodomonas sp. cultured during seven days in batch culture using f/2 medium and agricultural fertilizers. The growth rate was similar with both media (µ = 0.37 and 0.38 day–1). Protein content in Rhodomonas sp. cultured with f/2 medium was higher than with agricultural fertilizers (10.7 and 8.96 pg cell–1, respectively). Carbohydrate and lipid contents decreased during the exponential growth phase and there were no significant differences (P = 0.027 and 0.08, respectively) between both experiments. Carbohydrate content was higher during the slow growth phase in cultures using f/2 medium, whereas lipid content showed little variation during the slow growth phase, but was higher in cells cultured using agricultural fertilizers. During the first five days, total phosphate uptake by Rhodomonas sp. was 39.9 µM (94.3%) in the f/2 medium and 40 µM (99%) in the agricultural fertilizer medium. A total of 667.3 µM of nitrate (72.2%) was consumed during the first four days in the f/2 medium, whereas in the agricultural fertilizer medium formulated with ammonium nitrate, ammonium uptake (418.1 µM, 78.7%) in the first three days was higher than nitrate uptake (37.7 µM, 7.3%); however, when ammonium concentration decreased to 1.83 µM, the nitrate uptake increased. In conclusion, the cellular quantity and quality of Rhodomonas sp. was similar when both media were used and agricultural fertilizers can be used in marine aquaculture programs. Se evaluaron el crecimiento, el consumo de nutrientes (PO43–, NO3–, NH4+) y la composición proximal de Rhodomonas sp. cultivada durante siete días en cultivos estáticos con medio f/2 y con fertilizantes agrícolas. El crecimiento resultó similar en ambos medios, con tasas medias de crecimiento de 0.37 y 0.38 día–1. El contenido de proteínas de Rhodomonas sp. fue mayor en los cultivos con medio f/2 que en los cultivos con fertilizantes agrícolas, presentando valores medios de 10.7 y 8.96 pg célula–1, respectivamente. Los carbohidratos y los lípidos disminuyeron durante la fase de crecimiento exponencial y no hubo diferencias (P = 0.027 y 0.08, respectivamente) entre tratamientos, mientras que en la fase de crecimiento lento los carbohidratos aumentaron resultaron mayores en las células cultivadas con medio f/2. Los lípidos presentaron poca variación durante la fase estacionaria, pero resultaron ser mayores en las células cultivadas con fertilizantes agrícolas. Durante los primeros cinco días de cultivo, el consumo total de fosfato por Rhodomonas sp. fue de 39.9 µM (94.3%) en medio f/2 y 40 µM (99%) en medio con fertilizantes. En los primeros cuatro días de cultivo en medio f/2 se consumió un total de 677.3 µM de nitrato (72.2%), mientras que en los primeros tres días en el medio con fertilizantes que contenía nitrato de amonio, el consumo de amonio (418.1 µM; 78.7%) fue mayor que el consumo de nitrato (37.7 µM; 7.3%). Sin embargo, cuando la concentración de amonio se redujo aproximadamente a 1.83 µM, el consumo de nitrato se incrementó. En ambos medios de cultivo la cantidad y calidad celular de Rhodomonas sp. obtenida fue similar, por lo que se concluye que los fertilizantes agrícolas pueden ser usados en programas de acuacultura marina. 2005-03-06 2021-06-03T03:54:53Z 2021-06-03T03:54:53Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/77 10.7773/cm.v31i11.77 https://hdl.handle.net/20.500.12930/7320 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/77/57 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 31 No. 1A (2005); 79-89 Ciencias Marinas; Vol. 31 Núm. 1A (2005); 79-89 2395-9053 0185-3880 |
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