EFFECTS OF CADMIUM ON THE HOST-PATHOGEN SYSTEM .5. EFFECT OF EXOGENOUS DICYCLOHEXYLAMINE ON POTATO-TUBERS (SOLANUM-TUBEROSUM L), CADMIUM AND PHYTOPHTHORA-INFESTANS RELATIONS
A. Stroinski, EFFECTS OF CADMIUM ON THE HOST-PATHOGEN SYSTEM .5. EFFECT OF EXOGENOUS DICYCLOHEXYLAMINE ON POTATO-TUBERS (SOLANUM-TUBEROSUM L), CADMIUM AND PHYTOPHTHORA-INFESTANS RELATIONS, Journal of plant physiology, 150(1-2), 1997, pp. 178-183
Treatment of potato (Solanum tuberosum L.) tuber slices with dicyclohe
xylamine (DCHA) led to a reduction in some of endogenous polyamine (PA
) titers and peroxidase (PO) activity in and to a decrease in the elec
trolyte leakage (EL) from the tissues. Simultaneously, these changes w
ere associated with the alteration of interactions between this tissue
and cadmium, and Phytophthora infestans. Two cultivars, Bintje and Bz
ura, respectively susceptible and resistant to cadmium and pathogen, w
ere examined. Pretreatment of tuber slices with DCHA, before inoculati
on, resulted in limitation of infection in the susceptible tissues. Th
e possible involvement of PA in the transduction of the cadmium and pa
thogen signals is discussed.