Revealing Tag synthesis pathway in the green microalga Haematococcus pluvialis a source of triacylglycerides for biodiesel and valuable co-products.

SCODELARO BILBAO, PAOLA G.; DIAZ, MARINA; GARELLI, A; SALVADOR, G; LEONARDI, P

Buenos Aires

Congreso; Reunión Conjunta de Sociedades de Biociencia; 2017

Sociedades de Biociencias Argentina

(639) REVEALING TAG SYNTHESIS PATHWAY IN THEGREEN MICROALGA Haematococcus pluvialis: ASOURCE OF TRIACYLGLYCERIDES FOR BIODIESELAND VALUABLE CO-PRODUCTSPaola Gabriela Scodelaro Bilbao (1, 2, 3, 4), Andrés Garelli(2, 3, 4), Marina Diaz (1, 3), Gabriela Salvador (2, 3, 4), PatriciaLeonardi (1, 3, 4)(1) CERZOS. (2) INIBIBB. (3) UNS. (4) CONICET.Haematococcus pluvialis is an oleaginous microalga known as animportant source of the red carotenoid astaxanthin. Recently, weproposed H. pluvialis as a potential source of triacylglycerides (TAG)for biodiesel production, and of phytosterols with potential nutraceuticalproperties. In this work, our purpose was to study the metabolicpathways involved in TAG synthesis induced by high-light stress inH. pluvialis UTEX 2505. For this end, the strain was grown in Bold?sBasal Medium under high-light intensity or control light for 1, 2 and 3days. Then, the lipid content and the expression of enzymes known 328 MEDICINA - Volumen 77 - (Supl. I), 2017to be involved in lipid metabolism in plants were analyzed. High-lightstress significantly stimulated TAG and phytosterol synthesis andaccumulation (p