Acridone alkaloids from swinglea glutinosa (rutaceae) and their effects on photosynthesis

Acridone alkaloids from swinglea glutinosa (rutaceae) and their effects on photosynthesis

Author Arato Ferreira, Pedro H. Autor UNIFESP Google Scholar
dos Santos, Djalma A. P. Google Scholar
da Silva, Maria Fatima das G. F. Google Scholar
Vieira, Paulo C. Google Scholar
King-Diaz, Beatriz Google Scholar
Lotina-Hennsen, Blas Google Scholar
Veiga, Thiago A. M. Autor UNIFESP Google Scholar
Abstract Continuing our search for herbicide models based on natural products, we investigated the action mechanisms of five alkaloids isolated from Swinglea glutinosa (Rutaceae): Citrusinine-I (1), glycocitrine-IV (2), 1,3,5-trihydroxy-10-methyl-2,8-bis(3-methylbut-2-en-1-yl)-9(10H)-acridinone (3), (2R)-2-tert-butyl-3,10-dihydro-4,9-dihydroxy-11-methoxy-10-methylfuro[3,2-b]acridin-5(2H)-one (4), and (3R)-2,3,4,7-tetrahydro-3,5,8-trihydroxy-6-methoxy-2,2,7-trimethyl-12H-pyrano[2,3-a]acridin-12-one (5) on several photosynthetic activities in an attempt to find new compounds that affect photosynthesis. Through polarographic techniques, the compounds inhibited the non-cyclic electron transport in the basal, phosphorylating, and uncoupled conditions from H2O to methylviologen (=MV). Therefore, they act as Hill reaction inhibitors. This approach still suggested that the compounds 4 and 5 had their interaction site located at photosystem I. Studies on fluorescence of chlorophyll a suggested that acridones (1-3) have different modes of interaction and inhibition sites on the photosystem II electron transport chain.
Keywords Electron-Transport Chain
Photosystem-Ii
Spinach-Chloroplasts
Fluorescence
Inhibitors
Leaves
Language English
Sponsor CAPES
CNPq
FAPESP, Fundacao de Amparo a Pesquisa de Estado de Sao Paulo [2010/552326-9]
DGAPA [PAPIIT IT102012-3]
Grant number FAPESP: 2010/552326-9
DGAPA: Project PAPIIT IT102012-3
Date 2016
Published in Chemistry & Biodiversity. Weinheim, v. 13, n. 1, p. 100-106, 2016.
ISSN 1612-1872 (Sherpa/Romeo, impact factor)
Publisher Wiley-v c h verlag gmbh
Extent 100-106
Origin https://doi.org/10.1002/cbdv.201500046
Access rights Closed access
Type Article
Web of Science ID WOS:000368578700009
URI http://repositorio.unifesp.br/handle/11600/49639

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