Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.

Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.

Changes in the protein, RNA and DNA content related to nitrogen (N) and phosphorus (P) starvation were studied in the marine dinoflagellate Heterocapsa sp. grown in batch cultures. In both cases of nutrient starvation, metabolic adaptations affected protein and RNA pools, while the DNA content per cell remained approximately constant. N starvation led to a parallel decrease in protein and RNA concentration which caused the protein/RNA ratios to remain constant. A dramatic decrease in the RNA content characterized the P-starved cultures, although protein synthesis continued. The ribosomal RNA content was lower than expected given the continuation of protein synthesis. It is suggested that protein/RNA ratios could be used as an indicator of P starvation, while protein/chlorophyll ratios would characterize N starvation

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Bibliographic Details
Main Authors: Berdalet, Elisa, Latasa, Mikel, Estrada, Marta
Format: artículo biblioteca
Published: Oxford University Press 1994-01-01
Online Access:http://hdl.handle.net/10261/256116
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id dig-icm-es-10261-256116
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spelling dig-icm-es-10261-2561162021-12-16T08:37:32Z Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp. Berdalet, Elisa Latasa, Mikel Estrada, Marta Changes in the protein, RNA and DNA content related to nitrogen (N) and phosphorus (P) starvation were studied in the marine dinoflagellate Heterocapsa sp. grown in batch cultures. In both cases of nutrient starvation, metabolic adaptations affected protein and RNA pools, while the DNA content per cell remained approximately constant. N starvation led to a parallel decrease in protein and RNA concentration which caused the protein/RNA ratios to remain constant. A dramatic decrease in the RNA content characterized the P-starved cultures, although protein synthesis continued. The ribosomal RNA content was lower than expected given the continuation of protein synthesis. It is suggested that protein/RNA ratios could be used as an indicator of P starvation, while protein/chlorophyll ratios would characterize N starvation 2021-12-15T13:50:35Z 2021-12-15T13:50:35Z 1994-01-01 2021-12-15T13:50:35Z artículo http://purl.org/coar/resource_type/c_6501 issn: 0142-7873 e-issn: 1464-3774 Journal of Plankton Research 16(4): 303-316 (1994) http://hdl.handle.net/10261/256116 10.1093/plankt/16.4.303 https://doi.org/10.1093/plankt/16.4.303 Sí none Oxford University Press
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
description Changes in the protein, RNA and DNA content related to nitrogen (N) and phosphorus (P) starvation were studied in the marine dinoflagellate Heterocapsa sp. grown in batch cultures. In both cases of nutrient starvation, metabolic adaptations affected protein and RNA pools, while the DNA content per cell remained approximately constant. N starvation led to a parallel decrease in protein and RNA concentration which caused the protein/RNA ratios to remain constant. A dramatic decrease in the RNA content characterized the P-starved cultures, although protein synthesis continued. The ribosomal RNA content was lower than expected given the continuation of protein synthesis. It is suggested that protein/RNA ratios could be used as an indicator of P starvation, while protein/chlorophyll ratios would characterize N starvation
format artículo
author Berdalet, Elisa
Latasa, Mikel
Estrada, Marta
spellingShingle Berdalet, Elisa
Latasa, Mikel
Estrada, Marta
Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
author_facet Berdalet, Elisa
Latasa, Mikel
Estrada, Marta
author_sort Berdalet, Elisa
title Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
title_short Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
title_full Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
title_fullStr Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
title_full_unstemmed Effects of nitrogen and phosphorus starvation on nucleic acid and protein content of Heterocapsa sp.
title_sort effects of nitrogen and phosphorus starvation on nucleic acid and protein content of heterocapsa sp.
publisher Oxford University Press
publishDate 1994-01-01
url http://hdl.handle.net/10261/256116
work_keys_str_mv AT berdaletelisa effectsofnitrogenandphosphorusstarvationonnucleicacidandproteincontentofheterocapsasp
AT latasamikel effectsofnitrogenandphosphorusstarvationonnucleicacidandproteincontentofheterocapsasp
AT estradamarta effectsofnitrogenandphosphorusstarvationonnucleicacidandproteincontentofheterocapsasp
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