The role of nickel in urea assimilation by algae T. A. V. ReesI. A. Bekheet OriginalPaper Pages: 385 - 387
Inhibitory action of red light on the growth of the maize mesocotyl: evaluation of the auxin hypothesis Moritoshi Iino OriginalPaper Pages: 388 - 395
In vitro pollen embryogenesis in Nicotiana tabacum L. and its relation to pollen sterility, sex balance, and floral induction of the pollen donor plants Erwin Heberle-Bors OriginalPaper Pages: 396 - 401
On the time of embryogenic pollen grain induction during sexual development of Nicotiana tabacum L. plants Erwin Heberle-Bors OriginalPaper Pages: 402 - 406
Transmembrane electrical potentials in growing maize roots Maurice M. MoloneyPaul-Emile PiletGiulia Romani OriginalPaper Pages: 407 - 412
Intracellular levels of polyadenylated RNA and loss of vigour in germinating wheat embryos C. A. Dale SmithClifford M. Bray OriginalPaper Pages: 413 - 420
The role of the endoplasmic reticulum in the synthesis and transport of α-amylase in barley aleurone layers Russell L. JonesJohn V. Jacobsen OriginalPaper Pages: 421 - 432
Inhibition of elongation growth by two sesquiterpene lactones isolated from Helianthus annuus L. Otmar SpringAchim Hager OriginalPaper Pages: 433 - 440
Photosynthetic carbon metabolism of the cool-temperate C4 grass Spartina anglica Hubb. Alison M. SmithHarold W. WoolhouseD. Alan Jones OriginalPaper Pages: 441 - 448
Regulation of fructose-1,6-bisphosphatase activity in leaves Richard C. LeegoodDavid A. Walker OriginalPaper Pages: 449 - 456
Interaction of light and temperature on seed germination of Rumex obtusifolius L. David J. HandGillian CraigRichard E. Kendrick OriginalPaper Pages: 457 - 460
Plasmatubules: an alternative to transfer cells? N. HarrisK. J. OparkaD. J. Walker-Smith OriginalPaper Pages: 461 - 465
Wound-healing motility in the green alga Ernodesmis: calcium ions and metabolic energy are required John W. La Claire II OriginalPaper Pages: 466 - 474
Photobehaviour of Paramecium bursaria infected with different symbiotic and aposymbiotic species of Chlorella Dörte NiessWerner ReisserWolfgang Wiessner OriginalPaper Pages: 475 - 480
Changes in the non-structural carbohydrate content of cotton (Gossypium spp.) fibres at different stages of development Jean-Pierre JaquetAntony J. BuchalaHans Meier OriginalPaper Pages: 481 - 486