title: Inhibition of photophosphorylation and electron transport by N,N-dimethylformamide.
abstract: The basal electron transport of pea chloroplasts was inhibited by 78% by 7% (v/v) N,N-dimethylformamide; the inhibition was partially reversed by NH4Cl. N,N-Dimethylformamide also inhibited the Pi-ATP exchange, ATP synthesis and to a smaller extent Mg2+-ATPase activity. Light induced proton uptake was not affected by up to 30% (v/v) N,N-dimethylformamide. Uncoupled electron transport in photosystem II was inhibited to a larger extent by N,N-dimethylformamide than in photosystem I. These results indicate that N,N-dimethylformamide acts as an inhibitor of energy transfer and electron transport.
authors.affiliation: Departamento de Bioquímica, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, D.F. Mexico.
authors.forename: C B
authors.initials: CB
authors.lastname: Pe Na-Valdivia
authors.forename: L
authors.initials: L
authors.lastname: Rodriguez-Flores
authors.forename: M T
authors.initials: MT
authors.lastname: de Gómez-Puyou
authors.forename: B
authors.initials: B
authors.lastname: Lotina-Hennsen