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dc.contributor.author
Alayón Luaces, Paula
dc.contributor.author
Pagano, Eduardo Antonio
dc.contributor.author
Mroginski, Luis Amado
dc.contributor.author
Sozzi, Gabriel Oscar
dc.date.available
2018-09-28T20:12:57Z
dc.date.issued
2008-12
dc.identifier.citation
Alayón Luaces, Paula; Pagano, Eduardo Antonio; Mroginski, Luis Amado; Sozzi, Gabriel Oscar; Four glycoside hydrolases are differentially modulated by auxins, cytokinins, abscisic acid and gibberellic acid in apple fruit callus cultures; Springer; Plant Cell, Tissue and Organ Culture; 95; 3; 12-2008; 257-263
dc.identifier.issn
0167-6857
dc.identifier.uri
http://hdl.handle.net/11336/61313
dc.description.abstract
α-L-Arabinofuranosidase, α- and β-D-xylosidase, and β-D-glucosidase activity was detected in the soluble fraction (S-F) extracted with water and in the NaCl-released fraction (NaCl-F) extracted with a high-salt concentration buffer from apple callus cultures. The activity was found to be differentially modulated by the addition of various plant growth regulators (PGRs) to calluses that had lost their requirement for specific PGRs ("habituation" phenomenon). α-L-Arabinofuranosidase activity was 93%, 130%, 126% and 186% higher in the NaCl-F from IAA-, IBA-, ABA- and GA 3-treated callus than in that extracted from untreated callus while S-F α-L-arabinofuranosidase activity was only 71%, 24%, 55% and 66% higher, respectively. α-D-Xylosidase displayed low activity levels in both S-F and NaCl-F but 2iP-treated callus showed higher α-D-xylosidase activity in both fractions than the control. 2,4-D increased α-D-xylosidase activity by 110% in the NaCl-F but decreased it by 40% in the S-F. β-D-Xylosidase activity increased by 99% in S-F from 2iP-treated callus but slightly decreased in the NaCl-F. In GA3-treated callus, NaCl-F β-D-xylosidase activity increased by 188%. S-F and NaCl-F from Picloram-treated callus showed undetectable or only slightly noticeable α-L-arabinofuranosidase, α-D-xylosidase and β-D-xylosidase activity. Interestingly, β-D-glucosidase activity rose 28-fold in the S-F extracted from Picloram-treated callus. β-D-glucosidase was the only enzyme assayed that greatly increased its NaCl-F activity after 10 subcultures, and the addition of any PGR to the callus culture -except for Picloram and ABA- decreased its activity, suggesting that this enzyme may be associated with certain stress conditions, such as PGR starvation or Picloram addition. This is the first report on glycoside hydrolases from fruit callus as modulated by different PGRs. © 2008 Springer Science+Business Media B.V.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Α- And Β-D-Xylosidase
dc.subject
Α-L-Arabinofuranosidase
dc.subject
Β-D-Glucosidase
dc.subject
Glycosidases
dc.subject
Malus X Domestica
dc.subject
Plant Growth Regulators
dc.subject.classification
Otras Biotecnología Agropecuaria
dc.subject.classification
Biotecnología Agropecuaria
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Four glycoside hydrolases are differentially modulated by auxins, cytokinins, abscisic acid and gibberellic acid in apple fruit callus cultures
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-18T14:24:07Z
dc.journal.volume
95
dc.journal.number
3
dc.journal.pagination
257-263
dc.journal.pais
Alemania
dc.journal.ciudad
Dordrecht (Netherlands)
dc.description.fil
Fil: Alayón Luaces, Paula. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Pagano, Eduardo Antonio. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Mroginski, Luis Amado. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Sozzi, Gabriel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.journal.title
Plant Cell, Tissue and Organ Culture
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11240-008-9438-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11240-008-9438-1
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