Gibberellic acid decomposition and its loss of biological activity in aqueous solutions

Simple item page
dc.contributor.authorPerez, FJ
dc.contributor.authorVecchiola, A
dc.contributor.authorPinto, M
dc.contributor.authorAgosin, E
dc.date.accessioned2025-01-21T01:34:10Z
dc.date.available2025-01-21T01:34:10Z
dc.date.issued1996
dc.description.abstractIn addition to gibberellic acid (GA(3)), significant amounts of iso-GA(3), an isomer of GA(3), accumulated in cultures media of the fungus Gibberella fujikuroi. It has been reported that iso-GA(3) is an intermediate in the decomposition of GA(3) to gibberellenic acid, a dicarboxylic acid lacking the gamma-lactone ring. In this work, we studied the decomposition of GA(3) in buffered aqueous solutions at pH 5 and 7, both by spectrophotometry, measuring the appearance of gibberellenic acid at 254 nm, and using a bioassay by measuring the induction of alpha-amylase in barley endosperm. Results indicate that at both pH values, biological inactivation of GA(3) is more rapid than the appearance of gibberellenic acid, suggesting that inactivation is largely due to conversion to the intermediate, iso-GA(3). Furtheremore, no induction of alpha-amylase activity in barley endosperm was obtained in bioassays with iso-GA(3).
dc.fuente.origenWOS
dc.identifier.issn0031-9422
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97523
dc.identifier.wosidWOS:A1996TV09100003
dc.issue.numero3
dc.language.isoen
dc.pagina.final679
dc.pagina.inicio675
dc.revistaPhytochemistry
dc.rightsacceso restringido
dc.subjectGibberella fujikuroi
dc.subjectgibberellins
dc.subjectgibberellic acid (GA(3))
dc.subjectiso-GA(3)
dc.subjectgibberellenic acid
dc.subject.ods13 Climate Action
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa02 Hambre cero
dc.titleGibberellic acid decomposition and its loss of biological activity in aqueous solutions
dc.typeartículo
dc.volumen41
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas