Results 91 to 100 of about 213 (110)
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The ultrastructure of mitosis during zoosporogenesis in Rhizidiomyces apophysatus
Canadian Journal of Botany, 1989Mitotic divisions in reproductive thalli of Rhizidiomyces apophysatus, a monocentric, eucarpic hyphochytrid, were examined ultrastructurally. Mitosis is centric; each spindle pole contains two centrioles of unequal length that lie at a 108° angle relative to each other.
W. E. Barstow +2 more
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Experimental Mycology, 1981
Abstract C. confervae is a eucarpic, monocentric chytrid that has been cultured synchronously ( L. P. Gauriloff and M. S. Fuller, 1979 , Exp. Mycol. 3 : 3–5). In this study we use light and electron microscopy to examine the development of zoospores and the discharge apparatus, focusing on the multiple roles of the Golgi apparatus.
John W. Taylor, Melvin S. Fuller
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Abstract C. confervae is a eucarpic, monocentric chytrid that has been cultured synchronously ( L. P. Gauriloff and M. S. Fuller, 1979 , Exp. Mycol. 3 : 3–5). In this study we use light and electron microscopy to examine the development of zoospores and the discharge apparatus, focusing on the multiple roles of the Golgi apparatus.
John W. Taylor, Melvin S. Fuller
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Light microscopy of meiotic zoosporogenesis and mitotic gametogenesis in Ulva mutabilis føyn
Journal of Cell Science, 1974ABSTRACT The light-microscopical cytology of synchronized meiotic zoosporogenesis and mitotic gametogenesis in the sea-lettuce Ulva mutabilis Føyn, is described. The similarity in time course and morphological events of the 2 processes is stressed and discussed with particular reference to the use of Ulva in the biochemical study of ...
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Some observations on zoosporogenesis in the female strain of Oedogonium cardiacum
Canadian Journal of Botany, 1968Developmental cytological events in zoosporogenesis in Oedogonium have been studied in material stained with dilute solutions of acridine orange. Induction leads to isolation of successive protoplasts within the filament. Profound intracellular changes leading to zoospore formation are described and are considered to be the result of cellular ...
Elizabeth Trerice Retallack +1 more
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Protoplasma, 1986
Cytoplasmic cleavage in the gametangia and zoosporangia ofA. macrogynus was studied using monensin, an ionophore known to disrupt several endomembrane functions in plant and animal cells. Monensin interfered with normal gamete and zoospore formation in a dose dependent manner such that at a 20 μM concentration very abnormal cells were released from the
T. Sewall +3 more
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Cytoplasmic cleavage in the gametangia and zoosporangia ofA. macrogynus was studied using monensin, an ionophore known to disrupt several endomembrane functions in plant and animal cells. Monensin interfered with normal gamete and zoospore formation in a dose dependent manner such that at a 20 μM concentration very abnormal cells were released from the
T. Sewall +3 more
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Mycologia, 2004
Cleavage membrane development and cytokinesis were examined in zoosporangia of Allomyces macrogynus treated with cytoskeletal inhibitors and compared to zoosporogenesis under control conditions. Developing membranes were visualized in living zoosporangia with laser-scanning confocal microscopy using the lipophilic membrane dye FM4-64.
David S, Lowry +2 more
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Cleavage membrane development and cytokinesis were examined in zoosporangia of Allomyces macrogynus treated with cytoskeletal inhibitors and compared to zoosporogenesis under control conditions. Developing membranes were visualized in living zoosporangia with laser-scanning confocal microscopy using the lipophilic membrane dye FM4-64.
David S, Lowry +2 more
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SPORANGIAL STRUCTURE AND ZOOSPOROGENESIS IN CHORDA TOMENTOSA (LAMINARIALES)1,2,3
Journal of Phycology, 1974SUMMARYMembers of the genus Chorda represent the simplest form of sporophyte in the order Laminariales. The present study deals with reproduction in Chorda tomentosa, involving the initiation, growth, and structure of the sporangium and the process of zoosporogenesis.
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Journal of Phycology, 2012
The traditional order Mischococcales (Xanthophyceae) is polyphyletic with some original members now classified in a separate class, Eustigmatophyceae. However, most mischococcalean species have not yet been studied in detail, raising the possibility that many of them still remain misplaced.
Pavel, Přibyl +4 more
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The traditional order Mischococcales (Xanthophyceae) is polyphyletic with some original members now classified in a separate class, Eustigmatophyceae. However, most mischococcalean species have not yet been studied in detail, raising the possibility that many of them still remain misplaced.
Pavel, Přibyl +4 more
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The effects of osmotic water potentials on Aphanomyces euteiches during zoosporogenesis
Canadian Journal of Botany, 1973Zoosporogenesis in Aphanomyces euteiches was inhibited by increasing the osmotic water potential (ψπ) of the wash solution used to induce asexual reproduction. Mycelial protoplasm did not differentiate into primary spores when exposed to osmotica of glucose, mannose, fructose, sorbitol, sucrose, KCl, CaCl2, and polyethylene glycol (PEG) 4000 of ψπ ...
H. C. Hoch, J. E. Mitchell
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European Journal of Protistology, 1989
The fine structure of mitosis and cytokinesis leading to formation of zoospores in the unicellular tribophycean alga Botrydiopsis alpina Vischer has been studied by ultra-rapid cryofixation, freeze substitution, and electron microscopy. Preceding zoosporogenesis, the cell usually enlarges considerably and becomes multinucleate.
G M, Lokhorst, P J, Segaar
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The fine structure of mitosis and cytokinesis leading to formation of zoospores in the unicellular tribophycean alga Botrydiopsis alpina Vischer has been studied by ultra-rapid cryofixation, freeze substitution, and electron microscopy. Preceding zoosporogenesis, the cell usually enlarges considerably and becomes multinucleate.
G M, Lokhorst, P J, Segaar
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