Table of Contents

Biosynthesis and regulation of polyamines in higher plants.- Cellular systems for the study of the biosynthesis of polyamines and ethylene, as well as of virus multiplication.- Occurrence of spermine in chromatin of Zea mays.- Purification of a non-histone protein with properties of antizyme to ornithine decarboxylase from germinated barley seeds.- Effects of methylglyoxal-bis-(guanylhydrazone) and abscisic acid on polyamine metabolism in embryonectomized barley seeds.- The inhibition and activation of polyamine oxidase from oat seedlings.- Polyamine catabolism in higher plants: Characterization of pyrroline dehydrogenase.- RNA, proteins and polyamines during gametophytic and androgenetic development of pollen in Nicotiana tabacum and Datura innoxia.- The possible involvement of polyamines in the development of tomato fruits in vitro.- The effects of spermidine synthesis inhibitors on in vitro plant development.- Polyamine levels as related to growth, differentiation and senescence in protoplast-derived cultures of Vigna aconitifolia and Avena sativa.- Effect of polyamines and guanidines on the growth, nitrogen assimilation and reserve mobilization in germinating radish seeds.- Correlations between polyamine ratios and growth patterns in seedling roots.- Metabolism of polyamines in NaCl-resistant cell lines from Nicotiana sylvestris.- Characterization of a carrot callus line resistant to high concentrations of putrescine.- The occurrence and possible function of hydroxycinnamoyl acid amides in plants.- Manipulation of the polyamine content and senescence of apical buds of G2 peas.