Traud Winkelmann

Drought stress was applied in all analyzed genotypes as indicated by growth reduction. Setup of stress experiments under open greenhouse conditions is of major importance regarding classification of tolerance levels. Cell wall/vacuolar inhibitor of fructosidase (INH1) represents a promising candidate for the detection of early drought stress in young potato plants.

Carnivorous leaves grown in vitro under P starvation develop secreting glands The development of the glandular leaves started with a characteristic enrolling of the leaf tips covered with green glands (Fig. 3a,b). Within a few days, glands turned red and developed into sessile and erect glandular structures (Fig. 3c,d). About 1–2 wk later, a sticky liquid was found to be secreted starting at the glands at the base. This secretion was only observed at the erect glands (Fig. 3e,f).