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Profiling of sugar transporter genes in grapevine coping with water deficit
Author(s) -
Medici Anna,
Laloi Maryse,
Atanassova Rossitza
Publication year - 2014
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2014.09.016
Subject(s) - sugar , invertase , sucrose , transporter , hexose , gene , ripening , mannitol , symporter , trehalose , vitis vinifera , glucose transporter , biochemistry , biology , chemistry , botany , enzyme , microbiology and biotechnology , insulin
The profiling of grapevine ( Vitis vinifera L.) genes under water deficit was specifically targeted to sugar transporters. Leaf water status was characterized by physiological parameters and soluble sugars content. The expression analysis provided evidence that VvHT1 hexose transporter gene was strongly down‐regulated by the increased sugar content under mild water‐deficit. The genes of monosaccharide transporter VvHT5, sucrose carrier VvSUC11, vacuolar invertase VvGIN2 and grape ASR (ABA, stress, ripening) were up‐regulated under severe water stress. Their regulation in a drought‐ABA signalling network and possible roles in complex interdependence between sugar subcellular partitioning and cell influx/efflux under Grapevine acclimation to dehydration are discussed.