Structure and Function of Roots: Proceedings of the Fourth International Symposium on Structure and Function of Roots, June 20–26, 1993, Stará Lesná, Slovakia

Front Matter....Pages I-IX
Front Matter....Pages 1-1
Structure and function at the root apex — phylogenetic and ontogenetic perspectives on apical cells and quiescent centres....Pages 3-18
The origin of the basal part of the embryo root in Brassica napus L. and its role in growth of early seedlings....Pages 19-26
Radicle of Echinocactus platyacanthus (Cactaceae)....Pages 27-31
The relation between cell size, chromosome length and the orientation of chromosomes in dividing root cortex cells....Pages 33-39
Importance of the post-mitotic isodiametric growth (PIG) region for growth and development of roots....Pages 41-51
The completion of cell proliferation and growth in wheat radicle....Pages 53-59
Structural basis of root hair formation: Early development of trichoblasts and atrichoblasts....Pages 61-67
The relationship between growth, nucleus migration and cytoskeleton in root hairs of radish....Pages 69-74
Morphology and anatomy of rice roots with special reference to coordination in organo- and histogenesis....Pages 75-86
The localization of β -glucuronidase in roots of transgenic sugar beet by means of azocoupling procedure....Pages 87-89
Effect of gibberellin and ancymidol on the growth and cell wall components of pea ( Pisum sativum L.) roots....Pages 91-98
Structural and physiological characteristics of the tap root of Smyrnium perfoliatum L. (Apiaceae)....Pages 99-105
Increased root length and branching in cotton by soil application of the plant growth regulator PGR-IV....Pages 107-112
Modelling of the branching process of the root system of young oil palm seedlings. A Markovian approach....Pages 113-119
Front Matter....Pages 121-121
Effects of vanadate on the ATP content, ATPase activity and phosphate absorption capacity of maize roots....Pages 123-128
Ion permeability of maize root membrane vesicles: Studies with light scattering....Pages 129-132
The role of plasma membrane-bound activities in nitrate transport into sealed plasma membrane vesicles from Cucumis sativus L. roots....Pages 133-140
Influence of constant nitrate concentration on N uptake and growth of wheat....Pages 141-147
Al avoidance and Al tolerance of Mucuna pruriens var. utilis : Effects of a heterogeneous root environment and the nitrogen form in the root environment....Pages 149-154
Phosphate transfer in VA mycorrhizas. Special mechanisms or not?....Pages 155-161
Front Matter....Pages 121-121
Phosphatase induction under stress conditions in wheat....Pages 163-167
Changes in respiration and ultrastructure of radicle mitochondria during early germination in isolated wheat embryos....Pages 169-173
Comparison of phytate in radicle, plumule, scutellum and endosperm of Zea mays and Zea diploperennis seeds....Pages 175-180
The effect of vanadate on growth and phospholipid levels in the root and hypocotyl of bean seedlings ( Phaseolus vulgaris L.)....Pages 181-187
Distribution of soil invertase in relation to the root systems of Picea sitchensis (Bong.) Carr. and Acer pseudoplatanus L. during development of young plants....Pages 189-193
Front Matter....Pages 195-195
Water transport across roots....Pages 197-208
Hydrostatic and osmotic hydraulic conductivities and reflection coefficients of onion ( Allium cepa L.) roots....Pages 209-213
Root hydraulic properties of spruce measured with the pressure probe....Pages 215-222
The development of melon roots under trickle irrigation: Effects of the location of the emitters....Pages 223-225
Front Matter....Pages 227-227
Effects of nitrogen source, nitrate concentration and salt stress on element and ion concentrations in transport fluids and on C and N flows in Ricinus communis L.....Pages 229-236
Abscisic acid in the ear of winter wheat: Transport from the roots, the leaves, or biosynthesis in situ?....Pages 237-241
Hormones and root-shoot relationships in flooded plants — an analysis of methods and results....Pages 243-251
Translocation of nutritional and growth regulating substances in vitro to the developing roots and shoots of cucumber explants....Pages 253-256
Root respiration and its importance for the carbon balance of beech saplings ( Fagus sylvatica L.) in a montane beech forest....Pages 257-267
Front Matter....Pages 269-269
Impact of the exodermis on infection of roots by Fusarium culmorum ....Pages 271-276
Ultrastructural responses of root caps to the herbicides chlorsulfuron and metsulfuron methyl....Pages 277-284
Biophysics of the growth responses of pea roots to changes in penetration resistance....Pages 285-291
Tolerance of meristematic root cells to desiccation in seeds; protection of the nucleus....Pages 293-298
Inhibition of root growth by salinity stress: Toxicity or an adaptive biophysical response?....Pages 299-304
Distribution of calcium in tomato plants in response to heat stress and plant growth regulators....Pages 305-310
Front Matter....Pages 269-269
Safety zone as a barrier to root-shoot ice propagation....Pages 311-317
The binding of zinc, but not cadmium, by phytic acid in roots of crop plants....Pages 319-326
Differences in the metabolic responses of root tips of wheat and rye to aluminium stress....Pages 327-333
Phytohormonal levels in spruce roots under aluminium stress....Pages 335-339
Distribution of root biomass and length in Picea abies ecosystem under different immission regimes....Pages 341-347
Sporocarp succession of mycorrhizal fungi in the Norway spruce plantations in formerly agricultural land....Pages 349-352
Back Matter....Pages 353-355