Alkaloids (emetine and cephalin) production - affected by full sunlight stress in Carapichea ipecacuanha .

Autor: Moll Hüther C; Program in Sciences Applied to Health Products, Faculty of Pharmacy, Fluminense Federal University, Niterói, RJ, Brazil., Ferreira VF; Program in Sciences Applied to Health Products, Faculty of Pharmacy, Fluminense Federal University, Niterói, RJ, Brazil., de Carvalho da Silva F; Institute of Chemistry, Department of Organic Chemistry, Fluminense Federal University, Niterói, RJ, Brazil., da Costa Santos W; Program in Sciences Applied to Health Products, Faculty of Pharmacy, Fluminense Federal University, Niterói, RJ, Brazil., Borella J; Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil., Barros de Almeida RD; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil., Correia DM; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil., Duarte GCA; Program in Sciences Applied to Health Products, Faculty of Pharmacy, Fluminense Federal University, Niterói, RJ, Brazil., Langaro AC; Graduate Program in Agricultural and Environmental Engineering, Department of Agricultural and Environmental Engineering, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil., de Oliveira JR; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil., Azeredo Silva J; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil., Machado TB; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil., de Pinho CF; Graduate Program in Agricultural and Environmental Engineering, Department of Agricultural and Environmental Engineering, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil., Reinert F; Laboratory of Plant Physiology, Department of Botany, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil., Pereira CR; Plant-Environment Interaction Laboratory, Department of Agricultural and Environmental Engineering, Fluminense Federal University, Niterói, RJ, Brazil.
Jazyk: angličtina
Zdroj: Natural product research [Nat Prod Res] 2024 Jul; Vol. 38 (13), pp. 2296-2305. Date of Electronic Publication: 2023 Feb 14.
DOI: 10.1080/14786419.2023.2172723
Abstrakt: This study evaluated the responses of Carapichea ipecacuanha to sunlight stress-induced changes in the electron transport chain and its extended effects on alkaloid production (emetine and cephalin). The treatments consisted of: (i). 50, 70, and 90% shading (controls) and their respective exposure to full sunlight; besides, full sunlight (55 days of direct sun exposure). Photosynthetic pigments, chlorophyll a fluorescence transient, antioxidant enzymatic system, and quantification of cephalin and emetine were analyzed. Several changes in the Chl a fluorescence induction were observed, such as a decline in the quantum yield of the conversion of photochemical energy and photosynthetic performance and; an increase in emetine production of plants exposed to full sunlight. These results demonstrated that ipecac plants are extremely sensitive to full exposure to solar radiation, especially in periods with high temperatures, such as in summer, however with increment in emetine production.
Databáze: MEDLINE