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Cell wall-related enzymatic activities and transcriptional profiles in four strawberry (Fragaria x ananassa) cultivars during fruit development and ripening

dc.contributor.authorRamos P.
dc.contributor.authorParra-Palma C.
dc.contributor.authorFigueroa C.R.
dc.contributor.authorZuñiga P.E.
dc.contributor.authorValenzuela-Riffo F.
dc.contributor.authorGonzalez J.
dc.contributor.authorGaete-Eastman C.
dc.contributor.authorMorales-Quintana L.
dc.date.accessioned2020-09-02T22:26:31Z
dc.date.available2020-09-02T22:26:31Z
dc.date.issued2018
dc.identifier10.1016/j.scienta.2018.04.064
dc.identifier.citation238, , 325-332
dc.identifier.issn03044238
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5945
dc.descriptionFruit softening during ripening is mainly a consequence of solubilization and depolymerization of cell wall components mediated by the action of a complex set of enzymes and proteins. In the present work, we performed a comparative study of the changes in physiological properties, cell wall-associated polysaccharide contents and expression of cell wall-related genes during different fruit developmental stages of four strawberry (Fragaria x ananassa Duch.) cultivars (Camarosa, Cristal, Monterey, and Portola). The four cultivars showed different fruit firmness values being Camarosa and Cristal the firmest, Monterey the softest, and Portola with an intermediate value between them. Additionally, in order to obtain a correlation between mRNA transcriptional levels and fruit firmness with physiological properties, we have analyzed the abundance of five mRNAs (FaEXPA2, FaEXPA4, FaXTH1, FaXTH2 and FaPG1). We have found a correlation between fruit firmness and mRNA abundance levels for FaEXPA2, FaEXPA4, FaXTH1 and FaPG1. For these four mRNAs we have observed higher transcript levels in the softest cultivar (Monterey) than in the other two firmer cultivars (Cristal and Camarosa) at the 50% ripe or ripe stage. Finally, the results showed that exist a correlation between cell wall-modifying enzymes, physiological properties and firmness, which would explain the fruit softening process that reduces post-harvest life. © 2018 Elsevier B.V.
dc.language.isoen
dc.publisherElsevier B.V.
dc.subjectCell wall remodeling
dc.subjectCultivar
dc.subjectFruit ripening
dc.subjectmRNA expression levels
dc.subjectSoftening
dc.subjectStrawberry
dc.subjectcell component
dc.subjectcomparative study
dc.subjectcultivar
dc.subjectenzyme activity
dc.subjectfruit
dc.subjectphysiology
dc.subjectripening
dc.subjectRNA
dc.subjectFragaria x ananassa
dc.titleCell wall-related enzymatic activities and transcriptional profiles in four strawberry (Fragaria x ananassa) cultivars during fruit development and ripening
dc.typeArticle


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