G6PDH expression, occurrence and activity were measured in tomato under drought stress.
Drought effects have been evaluated under hydroponic, greenhouse and in open field.
Changes observed are strictly associated to increase in proline synthesis, Hsp70, and APX.
Results show significant rise in expression and occurrence of cytosolic G6PDH.
Data suggest that ABA pathway (NCED-PP2C) could be related to G6PDH regulation.