Results 141 to 150 of about 762 (177)
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Electron microscopy of zoosporogenesis in the marine phycomycete, Lagenidium callinectes Couch
Archiv f�r Mikrobiologie, 19731. Zoosporogenesis and zoospore structure of Lagenidium callinectes, parasitic on ova of the blue crab, Callinectes sapidus, are studied by electron microscopy. 2. The cytoplasmic thread connecting discharging cytoplasmic units appears as a simple constricted area of cytoplasm, containing much membranous material, and bound by only the ...
C. E. Bland, H. V. Amerson
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ZOOSPOROGENESIS IN THE CHLOROCOCCALEAN ALGA RADIOSPHAERA NEGEVENSIS OCAMPO‐PAUS AND FRIEDMANN1
Journal of Phycology, 1970 SUMMARYA simple method is described to demonstrate zoospore formation in a chlorococcalean alga.
Roseli Ocampo‐Paus
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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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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 Lowry +2 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
Tommy C. Sewall +3 more
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Archiv Für Protistenkunde, 1994
Summary The “amoeboflagellate” Reticulamoeba gemmipara n. gen., n. sp. was isolated from samples which were collected in the littoral zone of the Greek island Thera (Santorin). It could be cultivated with the pennate diatom Amphiprora sp. as food organism. On a “lawn” of the diatoms, the amoeboid stages create clusters.
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Summary The “amoeboflagellate” Reticulamoeba gemmipara n. gen., n. sp. was isolated from samples which were collected in the littoral zone of the Greek island Thera (Santorin). It could be cultivated with the pennate diatom Amphiprora sp. as food organism. On a “lawn” of the diatoms, the amoeboid stages create clusters.
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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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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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