I. Structural and Molecular Aspects of Root Growth and Development. - Histochemical analysis of root meristem activity in Arabidopsis thaliana using a cyclin:GUS (?-glucuronidase) marker line. - Ultrastructural effects of the herbicide chlorpropham (CIPC) in root tip cells of wheat. - Measurement of viscoelastic properties of root cell walls affected by low pH in lateral roots of Pisum sativum L. - Secondary dilatation growth in the root endodermis. - Changes of root structure in connection with the development of lateral root primordia in wheat and pumpkins. - Some aspects of endodermis and cortex structure in Dryas roots. - IAA and ZR content in leek (Allium porrum L. ) as influenced by P nutrition and arbuscular mycorrhizae in relation to plant development. - Polyploidy in tomato roots as affected by arbuscular mycorrhizal colonization. - II. Physiology of Water and Ion Uptake. - Water uptake by plant roots: an integration of views. - Root-shoot interactions in mineral nutrition. - Calcium channels in the plasma membrane of root cells: Their roles in mineral nutrition and cell signaling. - Nitrogen and base cation uptake in seedlings of Acer pseudoplatanus and Calamagrostis villosa exposed to an acidified environment. - Nitrate uptake by bean (Phaseolus vulgaris L. ) roots under phosphate deficiency. - Nitrate reductase in roots: Succinate- and NADH-dependent plasma membrane-bound forms. - Impact of Agrobacterium tumefaciens-induced stem tumors on NO3? uptake in Ricinus communis. - Fast shoot responses to root treatment. Are hormones involved?. - III. Root Under Stress Conditions. - Response of tomato plants to chilling stress in association with nutrient or phosphorus starvation. - Effect of water stress upon root meristems of pea seedlings: The role of quantitative and qualitativechanges in protein patterns. - The distribution of lead in duckweed (Lemna minor L. ) root tip. - Lead effects on cereal roots in terms of cell growth root architecture and metal accumulation. - Diverse responses of root cell structure to aluminium stress. - Relationship between microtubule orientation and patterns of cell expansion in developing cortical cells of Lemna minor roots. Language: English