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

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 t...

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Bibliographic Details
Published in:Natural product research 2024-07, Vol.38 (13), p.2296-2305
Main Authors: Moll Hüther, Cristina, Ferreira, Vitor Francisco, de Carvalho da Silva, Fernando, da Costa Santos, Wilson, Borella, Junior, Barros de Almeida, Ramonn Diego, Correia, Daniela Marques, Duarte, Glauce Christian Alves, Langaro, Ana Claudia, de Oliveira, Julia Ramos, Azeredo Silva, Jóice, Machado, Thelma de Barros, de Pinho, Camila Ferreira, Reinert, Fernanda, Pereira, Carlos Rodrigues
Format: Article
Language:English
Subjects:
Alkaloids
Carapichea ipecacuanha
Chlorophyll a fluorescence
Electron transport
Electron transport chain
Emetine
Exposure
Extreme values
Fluorescence
High temperature
Ipecac
Isoquinoline alkaloids
Photochemicals
Photosynthesis
Photosynthetic pigments
Solar radiation
Sunlight
Sunlight stress
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Summary: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.
ISSN:1478-6419
1478-6427
1478-6427
DOI:10.1080/14786419.2023.2172723