Pospíšilová J, Vágner M, Malbeck J, Trávníčková A, Baťková P:
Interactions between abscisic acid and cytokinins during water stress and subsequent rehydration.
BIOLOGIA PLANTARUM 49: 533-540, 2005.
Vaňková R, Kosová K, Dobrev P, Vítámvás P, Trávníčková A, Cvikrová M, Pešek B, Gaudinová A, Přerostová S, Musilová J, Galiba G, Prášil IT:
Dynamics of cold acclimation and complex phytohormone responses in Triticum monococcum lines G3116 and DV92 differing in vernalization and frost tolerance level.
Higher polyamine levels of fully developed embryos had positive effects on their ability to tolerate UV-B irradiation when compared with induced response s of early embryos. The aim of this work was to test the hypothesis that the higher levels of polyamines (PAs) might be involved in the response of Norway spruce somatic embryos to UV-B irradiation. We compare here the effects of 0.1, 0.6 and 6 W m-2 h-1 UV-B irradiation on polyamine metabolism in early and fully developed Norway spruce somatic embryos.
Key message The results of this study indicate the roles of polyamines and phenylpropanoids in the prevention of oxidative damage provoked by UV-B treatment. Abstract Plants respond to UV-B exposure by synthesizing a broad range of secondary metabolites, including ROSscavenging antioxidants and UV-B screening phenylpropanoids. Our recent results indicated that the accumulation of higher levels of polyamines in fully developed somatic embryos of Norway spruce may be causally linked to better tolerance of UV-B irradiation.
