Benzyl Amino Purine and Gibberellic Acid Coupled to Nitrogen-Limited Stress Induce Fatty Acids,Biomass Accumulation,and Gene Expression in Scenedesmus Obliquus

作     者：Hans Christian Correa-Aguado Gloria Viviana Cerrillo-Rojas Alejandro Rocha-Uribe Ruth Elena Soria-Guerra JoséFrancisco Morales-Domínguez 

作者机构：Departamento de QuímicaCentro de Ciencias BásicasUniversidad Autónoma de AguascalientesAguascalientes20131México Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis PotosíSan Luis Potosí78210México Instituto Politécnico NacionalUnidad Profesional Interdisciplinaria de Ingeniería Campus ZacatecasBlvd.del Bote 202Cerro del Gato Ejido La EscondidaCol.Ciudad AdministrativaZacatecasZAC 98160Mexico 

出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)

年 卷 期：2021年第90卷第2期

页      面：515-531页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：Instituto Politécnico Nacional, IPN COTEBAL-IPN 

主　　题：Biodiesel gene expression lipids microalgae nitrogen deficiency phytohormones 

摘      要：The need for renewable energy sources makes microalgae an essential feedstock for biofuels *** molecular aspects and the response to nitrogen(N)-limited conditions with a phytohormone stimulus in microalgae have been slightly *** this work,Scenedesmus obliquus was used as a study model to analyze the effect of benzyl amino purine(BAP)and gibberellic acid(GA)coupled to nitrogen limitation on cell growth,biomass and fatty *** selected 10^(-5)M BAP increased the biomass by 1.44-fold,and 10^(-6)M GA by *** total lipids also increased by 2.8 and 1.11-fold,*** 10^(-5)M BAP and 10^(-6)M GA addition to *** cultures at different initial nitrogen percentages(N-0,N-25,and N-50)showed a significant increase in cell growth and biomass productivity compared to the unstimulated *** N-0 and GA N-0 produced the highest lipid yields with 55%and 50%,*** lipid profile analysis revealed an increase,particularly in C18:1 and C16:0 fatty *** expression analysis showed an over-expression of acyl carrying protein(ACP),stearoyl-ACP desaturase(SAD),fatty acid acyl-ACP thioesterase(FATA),and diacylglycerol acyltransferase(DGAT)genes,which were mainly induced by nitrogen ***,BAP and GA produced a significant over-expression on these genes in the N-replete *** study shows that BAP and GA,coupled to N limitation stress,can be used to increase the biomass and lipid production in *** for sustainable biofuels.