The morphology of Urceolaria karyolobia, Sp. Nov., Trichodina tegula, Sp. Nov., and Scyphidia ubiquita, Sp. Nov., three new ciliates from Southern California limpets and turbans

Hirshfield, Henry I.

doi:10.1002/jmor.1050850102

Cited by 22 publications

(22 citation statements)

References 10 publications

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“…At least part of the reason for this paucity of biochemical data has been inadequate culture conditions for obtaining large numbers of cells. This problem has been largely overcome with the development of an improved culture medium (6), and several biochemical studies on G. breve have recently appeared (1-3, 8).…”

Section: Lthough the Unarmored Dinoflagellate G Y M N O D I N I U Mmentioning

confidence: 99%

“…At low densities Ambiphrya had no apparent harmful effects on the fish; however, at high densities respiration may be impeded. Ultrastructural studies indicate that this organism receives no nourishment from the host tissue.ESSILINE peritrichs attach to the external surface of a S variety of hosts in both marine and fresh-water habitats (6,8, 9). Their symbiotic relationships have been described as both parasitic (1, 13, 14, 18, 19) and ectocomrnensal ( 5 , 9, 10).…”

mentioning

confidence: 99%

“…ESSILINE peritrichs attach to the external surface of a S variety of hosts in both marine and fresh-water habitats (6,8, 9). Their symbiotic relationships have been described as both parasitic (1, 13, 14, 18, 19) and ectocomrnensal ( 5 , 9, 10).…”

mentioning

confidence: 99%

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Ultrastructure of the Peritrich Ciliate Ambiphrya ameiuri and Its Attachment to the Gills of the Catfish Ictalurus punctatus1

Fitzgerald

Simco

Coons

1982

The Journal of Protozoology

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Ambiphrya ameiuri is an ectocommensal peritrich that attaches to the gills of warm‐water fishes and filters bacteria from the water. The ultrastructure of this protozoon, its attachment to the fish gills, and its effect on the gill tissue were investigated by scanning and transmission electron microscopy. The peritrich attached to the gills by fibers extending from the scopula. A microtubular array, apparently a barren kinetosome, was present in each lobular projection, but no scopular cilia were observed. At low densities Ambiphrya had no apparent harmful effects on the fish; however, at high densities respiration may be impeded. Ultrastructural studies indicate that this organism receives no nourishment from the host tissue.

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Section: Lthough the Unarmored Dinoflagellate G Y M N O D I N I U Mmentioning

confidence: 99%

mentioning

confidence: 99%

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Ultrastructure of the Peritrich Ciliate Ambiphrya ameiuri and Its Attachment to the Gills of the Catfish Ictalurus punctatus1

Fitzgerald

Simco

Coons

1982

The Journal of Protozoology

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“…General accounts of related peritrichs can be found in various sources (Hirshfield, 1949;Kudo, 1966;Finley, 1969Finley, , 1974. The taxonomy of the mobiline Peritrichous ciliates is described by Lorn (1964Lorn ( , 1975.…”

Section: Introductionmentioning

confidence: 99%

Urceolaria mitra (von Seib) Epizoic on Polycelis tenuis (IJIMA) an SEM Study.

Bowen

Ryder

1994

Cell Biology International

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881Dense populations of Urceolaria mitra (Cilophora, Peritrichid) were observed on the surface of the planarian Polycelis tenuis (Platyhelminthes Turbellaria). Although the epizoite was primarily confined to the anterior dorsal surface of the planarian, heavily infested individuals had peritrichs attached to the posterior, lateral and ciliated ventral surfaces. Unique profiles of the skeletal ring (aboral disc) in relation to the host surface showed that some local erosion ofplanarian epithelium occurs. Outer and inner rows of cilia extended anticlockwise around the peristomal disc. The cilia ran for one and one-eighth turns around the disc and overlapped in the form of a spiral when the protist was extended and feeding. The cilia appeared to beat in metachronal rhythm and exhibited a wavelength and amplitude of approximately IOum. Regular striations having a periodicity of l um were observed in the periostimal membrane. A posterior or basal circlet of locomotor cilia was also observed and freeze fracture revealed an internal arrangement ofmicrovilli, cilia and reticular membranes.

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“…Observations on a wider range of potential hosts revealed that the ciliates were common and they were subsequently assigned to the genus Scyphidia Dujardin. Members of this genus are attached to the substrate by a scopula, and species have been recorded from both marine and fresh water environments (Nenninger, 1948;Hirshfield, 1949). The structure and morphology of the genus have received relatively little attention and although a number of studies have been made using the light microscope (Kahl, 1935;Surber, 1940Surber, , 1943Thompson, Kirkegaard & Jahn, 1947;Hirshfield, 1949;Biegel, 1954;MacKenzie, 1969)…”

Section: Introductionmentioning

confidence: 99%

Observations on the peritrichous ciliate Scyphidia ubiquita from the west coast of Wales and a description of a new species

Fish

Goodwin

1976

Journal of Zoology

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The peritrichous ciliate, Scyphidia ubiquita Hirshfield has been recorded on the west coast of Wales from the mantle cavity of snails belonging to the genus Littorina. The ultrastructure is similar to that described for specimens from the Pacific coast of the United States, but the scopula lacks a pellicular crest. Scyphidia acanthophorasp.n. from the mantle cavity of the top shells, Gibbula umbilicalis (da Costa) and Monodonta lineata (da Costa) is described on the basis of light, surface and transmission electron microscopy. It is distinguished from other scyphidians principally by the general body shape, form of the macronucleus and the ultrastructure of the scopula disc. Comparisons are made between this species and S. ubiquita particularly with respect to the ultrastructure of the scopula and the mode of attachment to the host.

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The morphology of Urceolaria karyolobia, Sp. Nov., Trichodina tegula, Sp. Nov., and Scyphidia ubiquita, Sp. Nov., three new ciliates from Southern California limpets and turbans

Cited by 22 publications

References 10 publications

Ultrastructure of the Peritrich Ciliate Ambiphrya ameiuri and Its Attachment to the Gills of the Catfish Ictalurus punctatus1

Ultrastructure of the Peritrich Ciliate Ambiphrya ameiuri and Its Attachment to the Gills of the Catfish Ictalurus punctatus1

Urceolaria mitra (von Seib) Epizoic on Polycelis tenuis (IJIMA) an SEM Study.

Observations on the peritrichous ciliate Scyphidia ubiquita from the west coast of Wales and a description of a new species

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