Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness

Firmness is a major quality attribute of fresh cherries, and is also a main factor affecting susceptibility to bruising and postharvest rots. In order to identify the factors determining the textural differences between genotypes, we evaluated the solubilization, depolymerization and monosaccharide...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Stortz, Carlos Arturo
Publicado:	2013
Materias:	Cell wall degradation Hemicellulose Ontogeny Pectin Prunoideae Softening
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09255214_v84_n_p66_Salato http://hdl.handle.net/20.500.12110/paper_09255214_v84_n_p66_Salato
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09255214_v84_n_p66_Salato
record_format	dspace
spelling	paper:paper_09255214_v84_n_p66_Salato2023-06-08T15:51:22Z Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness Stortz, Carlos Arturo Cell wall degradation Hemicellulose Ontogeny Pectin Prunoideae Softening Firmness is a major quality attribute of fresh cherries, and is also a main factor affecting susceptibility to bruising and postharvest rots. In order to identify the factors determining the textural differences between genotypes, we evaluated the solubilization, depolymerization and monosaccharide composition of pectin and hemicelluloses from two cultivars with contrasting firmness ('Sweetheart', firm and 'Newstar', soft) at four different developmental stages. Firm 'Sweetheart' cherries had higher contents of cell wall material than soft 'Newstar' fruit. Moderate depolymerization of hemicellulose and tightly bound pectins was detected irrespective of cultivar firmness. The general pattern and extent of uronic acid solubilization was quite similar in both cultivars. Rhamnogalacturonan I (RG-I) seemed to be preferentially solubilized in firm 'Sweetheart' fruit as opposed to tightly bound homogalacturonans (HG) in soft cherries. Pectic polymers with higher neutral sugar to uronic acids ratio were found from early development in soft 'Newstar' fruit. Overall, soft 'Newstar' fruit had reduced wall content and higher branching of tightly bound pectins than firm 'Sweetheart' fruit. These factors may be associated with the varietal differences in cherry firmness. © 2013 Elsevier B.V. Fil:Stortz, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09255214_v84_n_p66_Salato http://hdl.handle.net/20.500.12110/paper_09255214_v84_n_p66_Salato
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cell wall degradation Hemicellulose Ontogeny Pectin Prunoideae Softening
spellingShingle	Cell wall degradation Hemicellulose Ontogeny Pectin Prunoideae Softening Stortz, Carlos Arturo Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
topic_facet	Cell wall degradation Hemicellulose Ontogeny Pectin Prunoideae Softening
description	Firmness is a major quality attribute of fresh cherries, and is also a main factor affecting susceptibility to bruising and postharvest rots. In order to identify the factors determining the textural differences between genotypes, we evaluated the solubilization, depolymerization and monosaccharide composition of pectin and hemicelluloses from two cultivars with contrasting firmness ('Sweetheart', firm and 'Newstar', soft) at four different developmental stages. Firm 'Sweetheart' cherries had higher contents of cell wall material than soft 'Newstar' fruit. Moderate depolymerization of hemicellulose and tightly bound pectins was detected irrespective of cultivar firmness. The general pattern and extent of uronic acid solubilization was quite similar in both cultivars. Rhamnogalacturonan I (RG-I) seemed to be preferentially solubilized in firm 'Sweetheart' fruit as opposed to tightly bound homogalacturonans (HG) in soft cherries. Pectic polymers with higher neutral sugar to uronic acids ratio were found from early development in soft 'Newstar' fruit. Overall, soft 'Newstar' fruit had reduced wall content and higher branching of tightly bound pectins than firm 'Sweetheart' fruit. These factors may be associated with the varietal differences in cherry firmness. © 2013 Elsevier B.V.
author	Stortz, Carlos Arturo
author_facet	Stortz, Carlos Arturo
author_sort	Stortz, Carlos Arturo
title	Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
title_short	Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
title_full	Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
title_fullStr	Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
title_full_unstemmed	Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness
title_sort	developmental changes in cell wall polysaccharides from sweet cherry (prunus avium l.) cultivars with contrasting firmness
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09255214_v84_n_p66_Salato http://hdl.handle.net/20.500.12110/paper_09255214_v84_n_p66_Salato
work_keys_str_mv	AT stortzcarlosarturo developmentalchangesincellwallpolysaccharidesfromsweetcherryprunusaviumlcultivarswithcontrastingfirmness
_version_	1768541804299288576

Developmental changes in cell wall polysaccharides from sweet cherry (Prunus avium L.) cultivars with contrasting firmness

Ejemplares similares