Ectopic overexpression of the cell wall invertase gene CIN1 leads to dehydration avoidance in tomato.

ABSTRACT: Drought stress conditions modify source-sink relations, thereby influencing plant growth, adaptive responses, and consequently crop yield. Invertases are key metabolic enzymes regulating sink activity through the hydrolytic cleavage of sucrose into hexose monomers, thus playing a crucial role in plant growth and development. However, the physiological role of invertases during adaptation to abiotic stress conditions is not yet fully understood. Here it is shown that plant adaptation to drought stress can be markedly improved in tomato (Solanum lycopersicum L.) by overexpression of the cell wall invertase (cwInv) gene CIN1 from Chenopodium rubrum. CIN1 overexpression limited stomatal conductance under normal watering regimes, leading to reduced water consumption during the drought period, w

SUBMITTER: Albacete A 

PROVIDER: S-EPMC4321548 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature