title: The composition of cell walls from grape skin in Vitis vinifera intraspecific hybrids.
abstract: BACKGROUND
  Monastrell is a red grape cultivar adapted to the dry environmental conditions of Murcia, SE Spain. Its berries seem to be characterized by a rigid cell wall structure, which could make difficult the winemaking process. Cabernet Sauvignon cultivar is used to complement Monastrell wines in this region owing to its high phenolic content with high extractability. This study explores the skin cell wall composition of grapes from plants resulting from intraspecific crosses of Vitis vinifera cultivars Monastrell × Cabernet Sauvignon. Moreover, the morphology of the cell wall material (CWM) from some representative samples was visualized by transmission optical microscopy.
  
  
  RESULTS
  The total sugar content of CWM from nine out of ten genotypes of the progeny was lower than that from Monastrell. Seven out of ten genotypes showed lower phenolic content than Cabernet Sauvignon. The CWM from nine out of ten hybrids presented lower protein content than that from Monastrell.
  
  
  CONCLUSIONS
  This study confirms that skin cell walls from Monastrell × Cabernet Sauvignon hybrid grapes presented major differences in composition compared with their parents. These data could help in the development of new cultivars adapted to the dry conditions of SE Spain and with a cell wall composition favouring extractability. © 2017 Society of Chemical Industry.
authors.affiliation: Department of Food Science & Technology and Human Nutrition, University of Murcia, Murcia, Spain.|Joint Research Unit n°1083 Sciences for Enology, Montpellier SupAgro, INRA, Montpellier, France.
authors.forename: Rafael
authors.initials: R
authors.lastname: Apolinar-Valiente
authors.affiliation: Department of Food Science & Technology and Human Nutrition, University of Murcia, Murcia, Spain.
authors.forename: Encarna
authors.initials: E
authors.lastname: Gómez-Plaza
authors.affiliation: Joint Research Unit n°1083 Sciences for Enology, Montpellier SupAgro, INRA, Montpellier, France.
authors.forename: Nancy
authors.initials: N
authors.lastname: Terrier
authors.affiliation: Joint Research Unit n°1083 Sciences for Enology, Montpellier SupAgro, INRA, Montpellier, France.
authors.forename: Thierry
authors.initials: T
authors.lastname: Doco
authors.affiliation: Department of Food Science & Technology and Human Nutrition, University of Murcia, Murcia, Spain.
authors.forename: José María
authors.initials: JM
authors.lastname: Ros-García
mesh_terms: D000872:Anthocyanins / Q000032:analysis; D002473:Cell Wall / Q000737:chemistry* / Q000235:genetics; D002678:Chimera / Q000235:genetics; D005638:Fruit / Q000737:chemistry* / Q000235:genetics; D005838:Genotype; D006824:Hybridization, Genetic; D010636:Phenols / Q000032:analysis; D010940:Plant Proteins / Q000032:analysis; D027843:Vitis / Q000737:chemistry* / Q000235:genetics; D014920:Wine / Q000032:analysis*
chemical_list: D000872:Anthocyanins; D010636:Phenols; D010940:Plant Proteins
keywords: Cabernet Sauvignon; Monastrell; cell wall; grape; intraspecific hybrids