a-Galactosidase activity and carbohydrate mobilization in seeds of Dalbergia nigra (Vell.) Allemão ex Benth. - FABACEAE (BRAZILIAN ROSEWOOD) DURING GERMINATION

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dc.creatorLanna Clicia Carrijo
dc.creatorEduardo Euclydes de Lima e Borges
dc.creatorClaudia Aparecida Pontes
dc.creatorMariana Rocha Lopes
dc.creatorArno Brune
dc.date2010
dc.date.accessioned2026-07-07T02:39:59Z
dc.descriptionComplex substances are converted by enzyme action into soluble molecules during the germination process, and these are in turn translocated to the growing plant embryo, serving as an energy source or physical structure. With the objective of quantifying -galactosidase enzyme activity as well as mono- and oligosaccharide mobilization during germination, this study was conducted using Brazilian rosewood seeds. Seeds were kept in a germinator at 25ºC under continuous light for evaluation of radicle emergence (protrusion) over a period of 10 days. Mono- and oligosaccharide contents and also the specific activity of -galactosidaseenzyme were quantified on days zero, one, three and five. There was mobilization of glucose and mannose stored in cotyledons, and also of xylose in cotyledons and in the embryo in the first three days of germination. Rhamnose contents increased in cotyledons and in the embryonic axis. Raffinose was the initially used oligosaccharide, both in the embryonic axis and in cotyledons, while sucrose accumulated in both. Enzyme activity varied throughout, with greater specific activity on day one of imbibition, both in cotyledons and in the embryonic axis.
dc.formatapplication/pdf
dc.identifier0104-7760
dc.identifierhttps://www.redalyc.org/articulo.oa?id=74421656004
dc.identifier.urihttp://hdl.handle.net/123456789/420903
dc.languageen
dc.publisherUniversidade Federal de Lavras
dc.relationhttp://www.redalyc.org/revista.oa?id=744
dc.rightsCERNE
dc.sourceCERNE (Brasil) Num.3 Vol.16
dc.subjectAgrociencias
dc.titlea-Galactosidase activity and carbohydrate mobilization in seeds of Dalbergia nigra (Vell.) Allemão ex Benth. - FABACEAE (BRAZILIAN ROSEWOOD) DURING GERMINATION
dc.typeartículo científico

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