Título
The phytohormone abscisic acid increases triacylglycerol content in the green microalga Chlorella saccharophila (Chlorophyta)
Autor
VIRGINIA AURORA HERRERA VALENCIA
Colaborador
PATRICIA YOLANDA CONTRERAS POOL (Colaborador)
SANTY PERAZA ECHEVERRIA (Colaborador)
ANGELA FRANCISCA KU GONZALEZ (Colaborador)
Nivel de Acceso
Acceso Abierto
Referencia de datos
doi: http://dx.doi.org/10.4490/algae.2016.31.9.3
Materias
Resumen o descripción
Microalgae are currently a very promising source of biomass and triacylglycerol (TAG) for biofuels. In a previous study, we identified Chlorella saccharophila as a suitable source of oil for biodiesel production because it showed high biomass and lipid content with an appropriate fatty acid methyl esters profile. To improve the TAG accumulation in C. saccharophila, in this study we evaluated the effect of abscisic acid (ABA) addition on cell concentration, lipid content and TAG production in this microalga. First, we evaluated the effects of four ABA concentrations (1, 4, 10, and 20 μM) added at the beginning of a single-stage cultivation strategy, and found that all concentrations tested significantly increased cell concentration and TAG content in C. saccharophila. We then evaluated the addition of 1 μM ABA during the second stage of a two-stage cultivation strategy and compared it with a nitrogen deficiency treatment (ND) and a combination of ND and ABA (ND + ABA). Although ABA alone significantly increased lipid and TAG contents compared with the control, ND showed significantly higher TAG content, and ND + ABA showed the highest TAG content. When comparing the results of both strategies, we found a superior response in terms of TAG accumulation with the addition of 1 μM ABA at the beginning of a single-stage cultivation system. This strategy is a simple and effective way to improve the TAG content in C. saccharophila and probably other microalgae as a feedstock for biodiesel production.
Fecha de publicación
3 de septiembre de 2016
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Algae. 31(3), 267-276, 2016
Idioma
Inglés
Relación
&
Herrera-Valencia, V. A. (2016). The phytohormone abscisic acid increases triacylglycerol content in the green microalga Chlorella saccharophila (Chlorophyta). Algae, 31(3), 267-276.
Sugerencia de citación
Contreras-Pool, P. Y., Peraza-Echeverria, S., Ku-González, Á. F.,
Repositorio Orígen
Repositorio Institucional CICY
Descargas
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