Translocation and metabolism of glycine betaine by barley plants in relation to water stress Juanita A. R. LadymanWilliam D. HitzAndrew D. Hanson OriginalPaper Pages: 191 - 196
Use of an (n, α) nuclear reaction to study the long-distance transport of boron in trifolium repens after foliar application F. MartiniM. Thellier OriginalPaper Pages: 197 - 205
Correlation between 5-aminolaevulinate accumulation and protochlorophyll photoconversion Michael J. FordHelga Kasemir OriginalPaper Pages: 206 - 210
Ultrastructural investigations on Lycopersicum peruvianum pollen activation and pollen tube organization after self-and cross-pollination M. CrestiF. CiampoliniG. Sarfatti OriginalPaper Pages: 211 - 217
Promotion of stomatal opening in the grass Anthephora pubescens nees by a range of natural and synthetic cytokinis P. C. JewerL. D. Incoll OriginalPaper Pages: 218 - 221
ATPase and acid phosphatase activities associated with vacuoles isolated from storage roots of red beet (Beta vulgaris L.) Roger A. LeighRobert R. Walker OriginalPaper Pages: 222 - 229
Amino acid uptake by Lemna gibba by a mechanism with affinity to neutral L-and D-amino acids K.-D JungU. Lüttge OriginalPaper Pages: 230 - 235
Variability of mitochondrial population in Chlamydomonas reinhardii Rudolf BlankEdda HauptmannCarl-Gerold Arnold OriginalPaper Pages: 236 - 241
The reactivation of nitrate reductase from spinach (Spinacia oleracea L.) inactivated by NADH and cyanide, using trivalent manganese either generated by illuminated chloroplasts or as manganipyrophosphate J. M. MaldonadoB. A. NottonE. J. Hewitt OriginalPaper Pages: 242 - 248
Polysomes and intracisternal accumulations in enucleate sieve elements of rice (Oryza sativa L.) Karl J. Oparka OriginalPaper Pages: 249 - 254
Role of auxin and sucrose in the differentiation of sieve and tracheary elements in plant tissue cultures Roni Aloni OriginalPaper Pages: 255 - 263
Factors influencing the incidence of habituation for cytokinin of tobacco pith tissue in culture Frederick Meins Jr.Joseph LutzRachel Foster OriginalPaper Pages: 264 - 268