Ultrastructural observations on the cuticular envelope in salt glands ofFrankenia pauciflora Peter Olesen OriginalPaper Pages: 1 - 9
High frequency production of embryos inDatura innoxia from isolated pollen grains by combined cold treatment and serial culture of anthers in liquid medium Akhilesh K. TyagiA. RashidS. C. Maheshwari OriginalPaper Pages: 11 - 17
The morphology of cells and cell organelles in the anhydrobiotic tardigrade,Macrobiotus hufelandi B. Walz OriginalPaper Pages: 19 - 30
Changes in the activity of the Golgi apparatus during the cell cycle in antheridial filaments ofChara vulgaris L. Maria KwiatkowskaJ. Maszewski OriginalPaper Pages: 31 - 38
Hemmung der Cytokinese und Bildung von Riesenzellen beiPoterioochromonas malhamensis durch organische Bleiverbindungen und andere Agenzien G. Röderer OriginalPaper Pages: 39 - 51
Spatial and temporal aspects of cell separation in the foliar abscission zones ofImpatiens sultani Hook R. Sexton OriginalPaper Pages: 53 - 66
Feinstrukturelle und mikroanalytische Untersuchungen an den Kristallen und Lithosomen des CiliatenEuplotes vannus K. HausmannB. Walz OriginalPaper Pages: 67 - 77
Mikroskopische Beiträge zum Druck-Volumen-Schema des Zellwasserhaushaltes anhand von Einzelzellen und Zellfäden Waltraud Gerdenitsch OriginalPaper Pages: 79 - 97
Influence of environmental factors on the development of the valve in diatoms Anna -Maria M. Schmid OriginalPaper Pages: 99 - 115
Localization of C-S lyase activity in the root cells ofAlbizzia lophanta H. D. GregorR. Gmelin OriginalPaper Pages: 117 - 124
Studies on microplasmodia ofPhysarum polycephalum: Endocytotic activity, morphology of the vacuolar apparatus and defecation mechanism K. V. WolfW. Stockem OriginalPaper Pages: 125 - 138
Biochemical and histochemical investigation of diurnal variation in cAMP concentration and adenylate cyclase activity in white dutch clover J. C. Tu OriginalPaper Pages: 139 - 146
A mucous secretion in the malpighian tubes of a neotropical bumblebee,Bombus atratus Franklin Maria Luiza S. Mello OriginalPaper Pages: 147 - 158