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Drought stress modulates secondary metabolites in Brassica oleracea L. convar. acephala (DC) Alef, var. sabellica L.
Podda, Alessandra; Pollastri, Susanna; Bartolini, Paola; Pisuttu, Claudia; Pellegrini, Elisa; Nali, Cristina; Cencetti, Gabriele; Michelozzi, Marco; Frassinetti, Stefania; Giorgetti, Lucia; Fineschi, Silvia; Del Carratore, Renata; Maserti, Biancaelena.
Afiliação
  • Podda A; Department of Bio and Agri-food, Institute for Sustainable Plant Protection - National Research Council, Sesto Fiorentino, Italy.
  • Pollastri S; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
  • Bartolini P; Department of Bio and Agri-food, Institute for Sustainable Plant Protection - National Research Council, Sesto Fiorentino, Italy.
  • Pisuttu C; Department of Bio and Agri-food, Institute for Sustainable Plant Protection - National Research Council, Sesto Fiorentino, Italy.
  • Pellegrini E; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
  • Nali C; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
  • Cencetti G; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
  • Michelozzi M; Department of Bio and Agri-food, Institute of Biosciences and BioResources - National Research Council, Sesto Fiorentino, Italy.
  • Frassinetti S; Department of Bio and Agri-food, Institute of Biosciences and BioResources - National Research Council, Sesto Fiorentino, Italy.
  • Giorgetti L; Research Unit of Pisa, Institute of Agricultural Biology and Biotechnology - National Research Council, Pisa, Italy.
  • Fineschi S; Research Unit of Pisa, Institute of Agricultural Biology and Biotechnology - National Research Council, Pisa, Italy.
  • Del Carratore R; Department of Social Sciences and Humanities, and Cultural Heritage, Institute for the Conservation and Valorisation of Cultural Heritage - National Research Council, Sesto Fiorentino, Italy.
  • Maserti B; Department of Biomedical Sciences, Institute of Clinical Physiology - National Research Council, Pisa, Italy.
J Sci Food Agric ; 99(12): 5533-5540, 2019 Sep.
Article em En | MEDLINE | ID: mdl-31106430
BACKGROUND: Consumer preference today is for the consumption of functional food and the reduction of chemical preservatives. Moreover, the antimicrobial properties and health-promoting qualities of plant secondary metabolites are well known. Due to forecasted climate changes and increasing human population, agricultural practices for saving water have become a concern. In the present study, the physiological responses of curly kale Brassica oleracea L. convar. Acephala (DC) var. sabellica to drought stress and the impact of water limitation on the concentration of selected secondary metabolites were investigated under laboratory-controlled conditions. RESULTS: Results indicated that drought stress increased the content of trans-2-hexenal, phytol and δ-tocopherol, and decreased chlorophyll content. Moreover, drought stress increased antioxidant capacity and the expression of AOP2, a gene associated with the biosynthesis of aliphatic alkenyl glucosinolates, and of three genes - TGG1, TGGE and PEN2 - encoding for myrosinases, the enzymes involved in glucosinolate breakdown. CONCLUSION: The present study shows that water limitation during the growing phase might be exploited as a sustainable practice for producing curly kale with a high concentration of nutritionally important health-promoting bioactive metabolites. © 2019 Society of Chemical Industry.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Brassica / Metabolismo Secundário Idioma: En Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Brassica / Metabolismo Secundário Idioma: En Ano de publicação: 2019 Tipo de documento: Article