Zygote formation inCosmarium botrytis studied by scanning and transmission electron microscopy, phase-contrast, and Calcofluor staining Martha D. BerlinerElizabeth Guth OriginalPaper Pages: 1 - 10
Ultrastructural evidence for uptake of silicon-containing silicic acid analogs byUrtica pilulifera and incorporation into cell wall silica Arthur E. SowersE. Laurence Thurston OriginalPaper Pages: 11 - 22
Growth temperature acclimation byAmoeba proteus: Effects on cytoplasmic organelle morphology R. A. Smith OriginalPaper Pages: 23 - 35
Nuclear division in the cyst, and white spot nuclei preceding cyst formation, inAcetabularia wettsteinii M. B. E. GodwardK. BethJ. Pacey OriginalPaper Pages: 37 - 46
Side branch formation and orientation in the caulonema of the moss,Funaria hygrometrica: Experiments with inhibitors and with centrifugation G. SchmiedelE. Schnepf OriginalPaper Pages: 47 - 59
Some observations of the effects of mechanical impedance upon the ultrastructure of the root caps of barley A. J. WilsonA. W. Robards OriginalPaper Pages: 61 - 72
The cytology of cotyledon cells and the induction of giant polytene chromosomes inPisum sativum G. E. MarksD. R. Davies OriginalPaper Pages: 73 - 80
3H-UTP incorporation in polytene chromosomes ofChironomus permeabilized cells J. L. DíezC. de la Torre OriginalPaper Pages: 81 - 87
On the origin and development of vacuoles in promeristematic cells ofCystoseira stricta sauvageau (Phaeophyta, Fucales) Liliane Pellegrini OriginalPaper Pages: 89 - 102
The fine structure of the antennal sensilla of the pine saw flyNeodiprion sertifer (Insecta: Hymenoptera) E. Hallberg OriginalPaper Pages: 111 - 126
Cell differentiation in a diploid state inLilium longiflorum tissues A. Bennici Brief Report Pages: 127 - 131
Hexagonally ordered “rosettes” of particles in the plasma membrane ofMicrasterias denticulata Bréb. and their significance for microfibril formation and orientation O. KiermayerU. B. Sleytr Brief Report Pages: 133 - 138