TY - JOUR
T1 - Metabolomic profile of cacao cell suspensions growing in blue light/dark conditions with potential in food biotechnology
AU - Gallego, Adriana M.
AU - Rojas, Luisa F.
AU - Rodriguez, Héctor A.
AU - Mora, Conrado
AU - Atehortúa, Lucía
AU - Urrea, Aura I.
AU - Guiltinan, Mark J.
AU - Maximova, Siela N.
AU - Gaquerel, Emmanuel
AU - Zuluaga, Martha
AU - Pabón-Mora, Natalia
N1 - Funding Information:
We thank Ruta N (Project Number C007), Compañía Nacional de Chocolates and Universidad de Antioquia for funding. We also thank the Huck Institutes of the Life Sciences, Genomics and Bioinformatics Core Facilities at Penn State University (PSU), especially to Benjamin Knollenberg for providing the internal standard and gave useful comments to the research. Finally, we thank the Members of the Biotecnología and Evo-Devo en Plantas Groups, the Guiltinan-Maximova Lab at PSU, Anderson Lab, Dr. Phill Smith and the Metabolomics Facility at PSU, and Members of Rausch Lab in Heidelberg University (Germany) for providing laboratory and office space for the research.
Funding Information:
We thank Ruta N (Project Number C007), Compañía Nacional de Chocolates and Universidad de Antioquia for funding. We also thank the Huck Institutes of the Life Sciences, Genomics and Bioinformatics Core Facilities at Penn State University (PSU), especially to Benjamin Knollenberg for providing the internal standard and gave useful comments to the research. Finally, we thank the Members of the Biotecnología and Evo-Devo en Plantas Groups, the Guiltinan-Maximova Lab at PSU, Anderson Lab, Dr. Phill Smith and the Metabolomics Facility at PSU, and Members of Rausch Lab in Heidelberg University (Germany) for providing laboratory and office space for the research.
Publisher Copyright:
© 2019, Springer Nature B.V.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Abstract: Theobroma cacao is a rich source of flavonoid compounds, which are potent antioxidants. Flavonoids are well-known for their health benefits against cardiovascular diseases, cancer, and improvement of blood pressure. For this reason, cacao mass production has drawn the attention from the functional foods industry. Furthermore, cacao cell suspensions can be used to evaluate complex biosynthetic pathways, such as flavonoids due to the homogeneity of the cell population, the unlimited availability of raw material, the high cell growth and division rates, and the reproducibility of in vitro growth conditions. However, the metabolome of cacao could be affected by exposure to light; especially shorter wavelengths such as blue light trigger targeted flavonoid synthesis. Here, we provide the first report of the metabolomic profile of cacao cell suspensions grown under white-blue and dark conditions. For this, targeted metabolomics was conducted on flavonoids, including bioactive compounds such as catechin, epicatechin and proanthocyanidins (PAs). Moreover, untargeted metabolomics was performed to evaluate the response of the endogenous metabolites exposed to darkness and light. For this, unsupervised and supervised multivariate methods were used. Additionally, a chemical annotation and classification was conducted for the top 50 features obtained from the PLS-DA, in order to identify metabolic pathways that are associated to the light treatments. An increase of glycosylated flavonoids and PAs with higher degrees of polymerization from cells grown under light compared to dark, suggested that light conditions may trigger mechanisms associated with moderate stress. Additionally, lipids, flavonoids, and phytosterols increased after light treatment. The potential of cacao cell suspensions in food biotechnology is discussed, considering that the characterization and quantification of the cacao flavonoid composition are the first steps to evaluate the putative contribution of chocolate to human health. Key message: Metabolomic profiles of cacao cell suspensions under light and dark conditions suggest that flavonoid modification processes could be involved in defense response under light stress.
AB - Abstract: Theobroma cacao is a rich source of flavonoid compounds, which are potent antioxidants. Flavonoids are well-known for their health benefits against cardiovascular diseases, cancer, and improvement of blood pressure. For this reason, cacao mass production has drawn the attention from the functional foods industry. Furthermore, cacao cell suspensions can be used to evaluate complex biosynthetic pathways, such as flavonoids due to the homogeneity of the cell population, the unlimited availability of raw material, the high cell growth and division rates, and the reproducibility of in vitro growth conditions. However, the metabolome of cacao could be affected by exposure to light; especially shorter wavelengths such as blue light trigger targeted flavonoid synthesis. Here, we provide the first report of the metabolomic profile of cacao cell suspensions grown under white-blue and dark conditions. For this, targeted metabolomics was conducted on flavonoids, including bioactive compounds such as catechin, epicatechin and proanthocyanidins (PAs). Moreover, untargeted metabolomics was performed to evaluate the response of the endogenous metabolites exposed to darkness and light. For this, unsupervised and supervised multivariate methods were used. Additionally, a chemical annotation and classification was conducted for the top 50 features obtained from the PLS-DA, in order to identify metabolic pathways that are associated to the light treatments. An increase of glycosylated flavonoids and PAs with higher degrees of polymerization from cells grown under light compared to dark, suggested that light conditions may trigger mechanisms associated with moderate stress. Additionally, lipids, flavonoids, and phytosterols increased after light treatment. The potential of cacao cell suspensions in food biotechnology is discussed, considering that the characterization and quantification of the cacao flavonoid composition are the first steps to evaluate the putative contribution of chocolate to human health. Key message: Metabolomic profiles of cacao cell suspensions under light and dark conditions suggest that flavonoid modification processes could be involved in defense response under light stress.
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U2 - 10.1007/s11240-019-01679-3
DO - 10.1007/s11240-019-01679-3
M3 - Article
AN - SCOPUS:85072047915
SN - 0167-6857
VL - 139
SP - 275
EP - 294
JO - Plant Cell, Tissue and Organ Culture
JF - Plant Cell, Tissue and Organ Culture
IS - 2
ER -
