Abstract
Myrsinoic A acid, isolated from Myrsine cuneifolia and its hydrogenated derivative had their effect on photosynthesis tested. The compounds inhibited the electron flow (basal, phosphorylating and uncoupled) from water to methyl viologen; therefore, they act as Hill reaction inhibitors in spinach thylakoids. They inhibited partial reactions of PSII electron flow from water to 2,5-dichloro-1,4-benzoquinone, from water to sodium silicomolybdate, and partially electron flow from diphenylcarbazide to 2,6-dichloroindophenol. Their inhibition sites were at the donor and acceptor sides of PSII, between P{sub 680} and Q{sub A}. Chlorophyll {alpha} fluorescence measurements confirmed the behavior of the compounds (pool of quinones). (author)
Burger, Marcela Carmen de M.;
Oliveira, Gracielle S. de;
Menezes, Antonio Carlos S;
[1]
Vieira, Paulo Cezar;
Silva, Maria Fatima das G.F. da;
[2]
Veiga, Thiago A.M., E-mail: tveiga@unifesp.br
[3]
- Universidade Estadual de Goias, Anapolis, GO (Brazil). Unidade Universitaria de Ciencias Exatas e Tecnologicas
- Universidade Federal de Sao Carlos (UFSCar), SP (Brazil). Dept. de Quimica
- Universidade Federal de Sao Paulo (UNIFESP), SP (Brazil). Inst. de Ciencias Ambientais, Quimicas e Farmaceuticas. Dept. de Ciencias Exatas e da Terra
Citation Formats
Burger, Marcela Carmen de M., Oliveira, Gracielle S. de, Menezes, Antonio Carlos S, Vieira, Paulo Cezar, Silva, Maria Fatima das G.F. da, and Veiga, Thiago A.M., E-mail: tveiga@unifesp.br.
Myrsinoic A acid and its derivative: in vitro inhibitors of photosynthesis; Acido myrsinoico A e derivado: inibidores da fotossintese in vitro.
Brazil: N. p.,
2012.
Web.
doi:10.1590/S0100-40422012000700020.
Burger, Marcela Carmen de M., Oliveira, Gracielle S. de, Menezes, Antonio Carlos S, Vieira, Paulo Cezar, Silva, Maria Fatima das G.F. da, & Veiga, Thiago A.M., E-mail: tveiga@unifesp.br.
Myrsinoic A acid and its derivative: in vitro inhibitors of photosynthesis; Acido myrsinoico A e derivado: inibidores da fotossintese in vitro.
Brazil.
https://doi.org/10.1590/S0100-40422012000700020
Burger, Marcela Carmen de M., Oliveira, Gracielle S. de, Menezes, Antonio Carlos S, Vieira, Paulo Cezar, Silva, Maria Fatima das G.F. da, and Veiga, Thiago A.M., E-mail: tveiga@unifesp.br.
2012.
"Myrsinoic A acid and its derivative: in vitro inhibitors of photosynthesis; Acido myrsinoico A e derivado: inibidores da fotossintese in vitro."
Brazil.
https://doi.org/10.1590/S0100-40422012000700020.
@misc{etde_22012567,
title = {Myrsinoic A acid and its derivative: in vitro inhibitors of photosynthesis; Acido myrsinoico A e derivado: inibidores da fotossintese in vitro}
author = {Burger, Marcela Carmen de M., Oliveira, Gracielle S. de, Menezes, Antonio Carlos S, Vieira, Paulo Cezar, Silva, Maria Fatima das G.F. da, and Veiga, Thiago A.M., E-mail: tveiga@unifesp.br}
abstractNote = {Myrsinoic A acid, isolated from Myrsine cuneifolia and its hydrogenated derivative had their effect on photosynthesis tested. The compounds inhibited the electron flow (basal, phosphorylating and uncoupled) from water to methyl viologen; therefore, they act as Hill reaction inhibitors in spinach thylakoids. They inhibited partial reactions of PSII electron flow from water to 2,5-dichloro-1,4-benzoquinone, from water to sodium silicomolybdate, and partially electron flow from diphenylcarbazide to 2,6-dichloroindophenol. Their inhibition sites were at the donor and acceptor sides of PSII, between P{sub 680} and Q{sub A}. Chlorophyll {alpha} fluorescence measurements confirmed the behavior of the compounds (pool of quinones). (author)}
doi = {10.1590/S0100-40422012000700020}
journal = []
issue = {7}
volume = {35}
journal type = {AC}
place = {Brazil}
year = {2012}
month = {Jul}
}
title = {Myrsinoic A acid and its derivative: in vitro inhibitors of photosynthesis; Acido myrsinoico A e derivado: inibidores da fotossintese in vitro}
author = {Burger, Marcela Carmen de M., Oliveira, Gracielle S. de, Menezes, Antonio Carlos S, Vieira, Paulo Cezar, Silva, Maria Fatima das G.F. da, and Veiga, Thiago A.M., E-mail: tveiga@unifesp.br}
abstractNote = {Myrsinoic A acid, isolated from Myrsine cuneifolia and its hydrogenated derivative had their effect on photosynthesis tested. The compounds inhibited the electron flow (basal, phosphorylating and uncoupled) from water to methyl viologen; therefore, they act as Hill reaction inhibitors in spinach thylakoids. They inhibited partial reactions of PSII electron flow from water to 2,5-dichloro-1,4-benzoquinone, from water to sodium silicomolybdate, and partially electron flow from diphenylcarbazide to 2,6-dichloroindophenol. Their inhibition sites were at the donor and acceptor sides of PSII, between P{sub 680} and Q{sub A}. Chlorophyll {alpha} fluorescence measurements confirmed the behavior of the compounds (pool of quinones). (author)}
doi = {10.1590/S0100-40422012000700020}
journal = []
issue = {7}
volume = {35}
journal type = {AC}
place = {Brazil}
year = {2012}
month = {Jul}
}