Furoquinoline alkaloids isolated from Balfourodendron riedelianum as photosynthetic inhibitors in spinach chloroplasts

被引：25

作者：

Moura Veiga, Thiago Andre ^{[1
]}

King-Diaz, Beatriz ^{[3
]}

Ferrari Marques, Anna Sylvia ^{[2
]}

Sampaio, Olivia Moreira ^{[2
]}

Vieira, Paulo Cezar ^{[2
]}

das Gracas Fernandes da Silva, Maria Fatima ^{[1
]}

Lotina-Hennsen, Bias ^{[3
]}

机构：

[1] Univ Fed Sao Paulo Unifesp, Inst Ciencias Ambientais Quim & Farmaceut, BR-09972270 Diadema, SP, Brazil

[2] Univ Fed Sao Carlos UFSCar, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[3] Univ Nacl Autonoma Mexico, Dept Bioquim, Fac Quim, Mexico City 04510, DF, Mexico

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 2013年 / 120卷

基金：

巴西圣保罗研究基金会;

关键词：

Balfourodendron riedelianum; Chlorophyll a fluorescence; Evolitrine; Furoquinoline alkaloids; gamma-Fagarine; Maculosidine; ELECTRON-TRANSPORT; PHOTOSYSTEM-II; QUINOLINE; LEAVES; PLANTS;

D O I：

10.1016/j.jphotobiol.2013.01.006

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In the search for natural inhibitors of plant growth, we investigate the mechanism of action of the natural furoquinoline alkaloids isolated from Balfourodendron riedelianum (Rutaceae): evolitrine (1), kokusaginine (2), gamma-fagarine (3), skimmianine (4) and maculosidine (5) on the photosynthesis light reactions. Their effect on the electron transport chain on thylakoids was analyzed. Alkaloids 1, 2, 4 and 5 inhibited ATP synthesis, basal, phosphorylating and uncoupled electron transport acting as Hill reaction inhibitors on spinach chloroplasts. Alkaloid 3 was not active. The inhibition and interaction site of alkaloids 1, 2, 4 and 5 on the non-cyclic electron transport chain was studied by polarography and fluorescence of the chlorophyll a (Chl a). The results indicate that the target for 1 was localized on the donor and acceptor side of PS II. In addition alkaloids 2 and 5 affect the PS I electron acceptors on leaf discs. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：36 / 43

页数：8

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