Ultrastructural localization of alkaline phosphatase in the cyanobacteriaCoccochloris peniocytis andAnabaena cylindrica Barbara B. DoonanTh. E. Jensen OriginalPaper Pages: 189 - 197
Structural changes in flowers ofIpomoea tricolor during flower opening and closing H. L. Phillips Jr.H. Kende OriginalPaper Pages: 199 - 215
The Golgi apparatus in epidermal mucoid and ellipsoid-vacuolate cells ofAeolidia papillosa andCoryphella rufibranchialis (Nudibranchia) K. J. PorterE. R. Rivera OriginalPaper Pages: 217 - 233
Closed spindle nuclear division in the plasmodial phase of the acellular slime moldEchinostelium minutum A. A. HincheeE. F. Haskins OriginalPaper Pages: 235 - 252
Ultrastructural changes in major organelles during spermatial differentiation inBangia (Rhodophyta) Kathleen ColeR. G. Sheath OriginalPaper Pages: 253 - 279
Cell cycle duration and time of DNA synthesis in binucleate cells induced inV. faba meristems by caffeine or isobutyl-methylxanthine D. DavidsonS. W. Armstrong OriginalPaper Pages: 281 - 293
Protoplasmic streaming in the giant unicellular green algaAcetabularia mediterranea H. -U. KoopO. Kiermayer OriginalPaper Pages: 295 - 306
Isolation of protoplasts from stem and hypocotyl of the legumeVigna sinensis and some factors affecting their regeneration Shashi BharalA. Rashid OriginalPaper Pages: 307 - 313
The membrane geometry of the prolamellar body J. N. IsraelachviliJ. Wolfe OriginalPaper Pages: 315 - 321
Germination of the resting sporangia ofPhysoderma maydis, the causal agent ofPhysoderma disease of maize L. LangeL. W. Olson OriginalPaper Pages: 323 - 342
A method for localizing embryonal laticifers by combined conventional and fluorescence microscopy A. BruniBarbara Tosi OriginalPaper Pages: 343 - 347
The salivary secretion of spinning larvae ofRhynchosciara americana Maria Luiza S. MelloMaria Christina M. Pretti OriginalPaper Pages: 349 - 360
Reversal of motory polarity ofAmoeba proteus by suction Lucyna Grebecka OriginalPaper Pages: 361 - 375