Electron microscopic studies on a unique cytokinetic structure in tetrasporocytes of the red algaHarveyella sp. (Cryptonemiales, Choreocolaceae) P. KugrensDonna J. Koslowsky OriginalPaper Pages: 197 - 209
Cell cycle related changes in the quantity of TMV virions bound to protoplasts ofNicotiana sylvestris A. R. GouldS. E. AshmoreA. J. Gibbs OriginalPaper Pages: 211 - 223
Ultrastructure of meiosis in the hollyhock rust fungus,Puccinia malvacearum I. Prophase I — Prometaphase I K. L. O'DonnellD. J. McLaughlin OriginalPaper Pages: 225 - 244
Ultrastructure of meiosis in the hollyhock rust fungus,Puccinia malvacearum II. Metaphase I—Telophase I K. L. O'DonnellD. J. McLaughlin OriginalPaper Pages: 245 - 263
Ultrastructure of meiosis in the hollyhock rust fungus,Puccinia malvacearum K. L. O'DonnellD. J. McLaughlin OriginalPaper Pages: 265 - 288
Die Feinstruktur der Chrysocystiden vonHypholoma fasciculare (Basidiomycetes, Agaricales) Irmtraud ThalerM. Gailhofer OriginalPaper Pages: 289 - 300
Sequential protein-dependent steps in the cell cycle initiation and completion of division in vitamin B12 replenishedEuglena gracilis M. H. BréE. El FerjaniM. Lefort-Tran OriginalPaper Pages: 301 - 318
Tissue localization of polyphenol oxidase inSorghum K. C. VaughnS. O. Duke OriginalPaper Pages: 319 - 327
Control of division patterns in explanted microspores ofTulipa gesneriana I. TanakaM. Ito OriginalPaper Pages: 329 - 340
The flagellar apparatus of the scaly green flagellatePyramimonas obovata: Absolute configuration M. Melkonian OriginalPaper Pages: 341 - 355
Isolation and culture of protoplasts ofCapsicum annuum L. and their regeneration into plants floweringin vitro P. K. SaxenaR. GillS. C. Maheshwari Brief Report Pages: 357 - 360
A light microscopical investigation of amoebal and plasmodial mitosis in the MyxomyceteEchinostelium minutum A. A. HincheeE. F. Haskins Brief Report Pages: 361 - 367