Profiling of sugar transporter genes in grapevine coping with water deficit

•Profiling of sugar transporter genes in grapevine leaves under water-deficit and during recovery.•VvHT1 gene is strongly down-regulated by the increased sugar content early under mild water deficit.•VvHT5, VvSUC11 and VvGIN2 genes are highly up-regulated upon severe water stress.•Grape ASR gene is...

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Bibliographic Details
Published in:FEBS letters 2014-11, Vol.588 (21), p.3989-3997
Main Authors: Medici, Anna, Laloi, Maryse, Atanassova, Rossitza
Format: Article
Language:English
Subjects:
Abscisic Acid - pharmacology
Abscisic acid, stress and ripening proteins
Carbohydrate Metabolism - genetics
Computer Simulation
Droughts
Gene Expression Profiling
Gene expression regulation
Grapevine
Life Sciences
Membrane Transport Proteins - genetics
Plant Leaves - drug effects
Plant Leaves - genetics
Plant Leaves - metabolism
Plant Leaves - physiology
Plant Proteins - genetics
Promoter Regions, Genetic - genetics
Solubility
Stress, Physiological - genetics
Sugar transporters
Vacuolar invertase
Vegetal Biology
Vitaceae
Vitis - drug effects
Vitis - genetics
Vitis - metabolism
Vitis - physiology
Vitis vinifera
Water - metabolism
Water deficit
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Summary:•Profiling of sugar transporter genes in grapevine leaves under water-deficit and during recovery.•VvHT1 gene is strongly down-regulated by the increased sugar content early under mild water deficit.•VvHT5, VvSUC11 and VvGIN2 genes are highly up-regulated upon severe water stress.•Grape ASR gene is a water-stress marker and a possible key factor allowing the plant to cope with drought.•Studied genes seem transcriptionally regulated in a complex drought- and ABA-signalling network. 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.
ISSN:0014-5793
1873-3468
DOI:10.1016/j.febslet.2014.09.016