Optimization of lipid compound synthesis in Theobroma cacao L. in vitro cultures through stress inducers: towards a sustainable approach
Synopsis
Theobroma cacao L., particularly the National “fino de aroma” variety, represents a strategic genetic resource for Ecuador; however, its cultivation is constrained by diseases and climate variability. This study aimed to characterize the fatty acid profile in biotechnological systems exposed to stress inducers (methyl jasmonate, salicylic acid, glycerol, and elevated temperature). Biomass proliferation was optimized in MS, B5, and WPM media, with WPM supplemented with NAA and KIN proving the most effective. Lipid extraction and quantification were conducted through acid hydrolysis, hexane extraction, and FTIR spectroscopy, focusing on oleic, palmitic, and stearic acids. Results indicated that salicylic acid and methyl jasmonate markedly enhanced fatty acid accumulation, whereas glycerol and high temperature had comparatively limited effects. These findings highlight the potential of stress inducers as effective tools to modulate lipid biosynthesis in cacao, offering promising applications for sustainable plant biotechnology.
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