Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance

Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance

Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris et Fredericq (Gracilariales, Rhodophyta) is a species with high-quality and high yields of polysaccharides and is therefore an important agarophyte on the west coast of the Atlantic Ocean. On the northeastern coast of Brazil, the populations of this...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Jofre, Jocelyn, Navarro, Nelso Patricio, Plastino, Estela María
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2020
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:cienciasmarinas.com.mx:article-3074
record_format ojs
spelling oai:cienciasmarinas.com.mx:article-30742024-02-28T00:44:14Z Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance Caracterización fisiológica de 2 linajes de color de Crassiphycus corneus (J.Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Efectos de la temperatura y la irradiancia Jofre, Jocelyn Navarro, Nelso Patricio Plastino, Estela María physiology Crassiphycus corneus mariculture photosynthesis pigments fisiología Crassiphycus corneus maricultura fotosíntesis pigmentos Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris et Fredericq (Gracilariales, Rhodophyta) is a species with high-quality and high yields of polysaccharides and is therefore an important agarophyte on the west coast of the Atlantic Ocean. On the northeastern coast of Brazil, the populations of this species are mostly composed of individuals of the wild red color strain and by some individuals of the green color strain, the latter being scarcely studied. This work characterizes and compares the physiological performance of the wild red strain and the green variant under different temperature and irradiance conditions in the laboratory. The results indicate that the green and red strains are similarly tolerant to low temperatures (18 ºC) but intolerant to high temperatures (35 ºC). Both strains exhibited the highest growth rate at 25 ºC and high irradiance (500 μmol photon·m–2·s–1). Under these conditions, photosynthetic rate and pigment content were similar in both color strains, but growth rates were higher in the red strain. Despite this difference, it is important to highlight that the green strain showed a growth rate of over 10%, which indicates that it could be used for cultures aiming to obtain products with added value. Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris et Fredericq (Gracilariales, Rhodophyta) es una de las especies de algas que posee alta calidad y rendimiento de polisacáridos, y es una importante agarofita de la costa oeste del océano Atlántico. En las costas del noreste brasileño, las poblaciones de esta especie están compuestas, en su mayoría, por individuos de linaje salvaje de color rojo, así como por algunos de coloración verde, de los cuales estos últimos han sido escasamente estudiados. Este trabajo caracteriza y compara el desempeño fisiológico de los linajes rojo salvaje y la variante verde de C. corneus en diferentes condiciones de temperatura e irradiancia en laboratorio. Los resultados indican que los linajes verdes y rojos son similarmente tolerantes a bajas temperaturas (18 ºC) e intolerantes a las altas temperaturas (35 ºC). La mayor tasa de crecimiento en ambos linajes fue observada a 25 ºC y alta irradiancia (500 μmol foton·m–2·s–1). En esas últimas condiciones, la tasa fotosintética y el contenido pigmentario fue similar en ambos linajes, pero las tasas de crecimiento fueron mayores en el linaje rojo. A pesar de esta diferencia en el crecimiento, se destaca que el linaje verde presentó tasa de crecimiento por sobre el 10%, lo cual podría permitir que sea utilizado con fines de cultivo para obtener productos con valor agregado. Iniversidad Autónoma de Baja California 2020-06-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf text/xml text/xml https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074 10.7773/cm.v46i2.3074 Ciencias Marinas; Vol. 46 No. 2 (2020); 119–132 Ciencias Marinas; Vol. 46 Núm. 2 (2020); 119–132 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074/420420502 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074/420420952 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074/420420657 Copyright (c) 2020 Ciencias Marinas https://creativecommons.org/licenses/by/4.0
institution Ciencias Marinas
collection OJS
language eng
format Online
author Jofre, Jocelyn
Navarro, Nelso Patricio
Plastino, Estela María
spellingShingle Jofre, Jocelyn
Navarro, Nelso Patricio
Plastino, Estela María
Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
author_facet Jofre, Jocelyn
Navarro, Nelso Patricio
Plastino, Estela María
author_sort Jofre, Jocelyn
title Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
title_short Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
title_full Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
title_fullStr Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
title_full_unstemmed Physiological assessment of 2 color strains of Crassiphycus corneus (J. Agardh) Gurgel, J.N. Norris et Fredericq (Gracilariales, Rhodophyta): Effects of temperature and irradiance
title_sort physiological assessment of 2 color strains of crassiphycus corneus (j. agardh) gurgel, j.n. norris et fredericq (gracilariales, rhodophyta): effects of temperature and irradiance
description Crassiphycus corneus (J.Agardh) Gurgel, J.N.Norris et Fredericq (Gracilariales, Rhodophyta) is a species with high-quality and high yields of polysaccharides and is therefore an important agarophyte on the west coast of the Atlantic Ocean. On the northeastern coast of Brazil, the populations of this species are mostly composed of individuals of the wild red color strain and by some individuals of the green color strain, the latter being scarcely studied. This work characterizes and compares the physiological performance of the wild red strain and the green variant under different temperature and irradiance conditions in the laboratory. The results indicate that the green and red strains are similarly tolerant to low temperatures (18 ºC) but intolerant to high temperatures (35 ºC). Both strains exhibited the highest growth rate at 25 ºC and high irradiance (500 μmol photon·m–2·s–1). Under these conditions, photosynthetic rate and pigment content were similar in both color strains, but growth rates were higher in the red strain. Despite this difference, it is important to highlight that the green strain showed a growth rate of over 10%, which indicates that it could be used for cultures aiming to obtain products with added value.
publisher Iniversidad Autónoma de Baja California
publishDate 2020
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3074
_version_ 1792606982341918720

Ejemplares similares