Artículo
Reversible changes in galactolipid saturation level and head group composition are associated with tolerance to postharvest chilling in tomato fruit
Fecha de publicación:
01/2022
Editorial:
John Wiley & Sons Ltd
Revista:
Journal of the Science of Food and Agriculture
ISSN:
0022-5142
e-ISSN:
1097-0010
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
BACKGROUND: Chilling injury (CI) is a physiological disorder that results in a limitation for cold storage (CS) of many fruits and vegetables. The low temperature-induced changes in the properties and composition of cell membranes are involved in the response to chilling temperature and in the mechanism of CI and tolerance. RESULTS: We compared the changes in the lipid composition by gas chromatography-mass spectrometry before, immediately after CS, as well as during a 3-day subsequent period, of tomato fruits with different chilling-sensitivity: Micro-Tom (tolerant) and Minitomato (susceptible). The changes in linolenic acid content, double bond index and digalactosyldiacylglycerol/monogalactosyldiacylglycerol ratio (DGDG/MGDG) showed membrane fluidity adjustment, depending on the temperature. By a database search, we identified 18 membrane-bound fatty acid desaturase (FAD) genes and five DGDG synthases (DGD) genes that phylogenetically clustered into four and two subfamilies, respectively. The FAD and DGD genes were differentially expressed in response to CS, as determined by quantitative reverse transcriptase-polymerase chain reaction analysis. CONCLUSION: The data strongly suggest that reversion of CS-induced changes during the recovery period is important for the proper function of the membrane and tolerance to postharvest CI in tomato fruit.
Palabras clave:
CHILLING INJURY
,
DGD SYNTHASES
,
FADS
,
MEMBRANE LIPIDS
,
MICRO-TOM
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Articulos(IBR)
Articulos de INST.DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Articulos de INST.DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Citación
Sossi, Maria Laura; Valle, Estela Marta; Boggio, Silvana Beatriz; Reversible changes in galactolipid saturation level and head group composition are associated with tolerance to postharvest chilling in tomato fruit; John Wiley & Sons Ltd; Journal of the Science of Food and Agriculture; 102; 2; 1-2022; 531-539
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