Life Sciences Commons^™

Life History Differences Between Two Species Of Gregarina In Tenebrio Molitor Larva, Tim R. Ruhnke, John J. Janovy Jr.

John Janovy Publications

The life histories of two species of Gregarina, protozoans parasitizing Tenebrio molitor, were compared. Gregarina cuneata occurred primarily in larger larvae, whereas Gregarina steini was distributed evenly throughout all sizes of larvae. As larval size increased, an increase in prevalence of G. cuneata preceded a more substantial increase in parasite relative density. Sample variance/relative density ratios of the two parasite species also differed. When host larvae were isolated in a sterile bran medium, the prevalence of G. cuneata decreased, whereas that of G. steini remained relatively high. Trophozoites of G. cuneata were found predominantly in a paired condition, …

Cysticerci (Cestoda: Taeniidae) From White-Tailed Deer, Odocoileus Virginianus, In Southern Florida [Research Notes], Donald J. Forrester, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Metacestodes (cysticerci) of Taenia omissa Liihe, 1910, and Taenia hydatigena Pallas, 1776, were found in 9 and one of 124 white-tailed deer, respectively, in southern Florida in 1984-1986. Intensities of T. omissa varied from 1 to 15 (x[bar] = 4.6); only one cysticercus of T. hydatigena was collected. No significant difference in the prevalences of T. omissa according to sex, age, or locality was observed.

Primary Antibody Responses To Thymus-Independent Antigens In The Lungs And Hilar Lymph Nodes Of Mice, S. Niranjan Goud, Alan M. Kaplan, Subbarao Bondada

Sanders-Brown Center on Aging Faculty Publications

B lymphocytes from the pulmonary lymphoid tissues were stimulated with a variety of thymus-independent (TI) antigens by intratracheal (i.t.) immunization. Immune responses in the lungs and hilar lymph nodes (HLN), which are part of the localized lymphoid tissue, as well as in the spleen, the systemic lymphoid organ, were studied. Thus, primary i.t. immunization of mice with the TI-1 antigen trinitrophenyl-lipopolysaccharide (TNP-LPS) elicited both antigen-specific and polyclonal plaque-forming cell responses from HLN, lung, and splenic B lymphocytes. These responses appeared as early as 3 days after immunization and declined by day 7. Similar immunization with another TI-1 antigen, TNP-Brucella …

Evidence Of A Neurogenic Component During Ige-Mediated Inflammation In Murine Skin, Victoria Jean Cavanaugh

Biological Sciences Theses & Dissertations

The direct stimulation of sensory nerves or the intradermal injection of neuropeptides triggers a cutaneous inflammatory response that involves the degranulation of mast cells. These neurogenic inflammatory reactions are physiologically similar to IgE-mediated hypersensitivity responses, which also depend on mast cells. Although non-antigenic stimuli distinguish neurogenic from IgE-mediated inflammation, the similarity of their effector stages suggested that peripheral nerves may also participate in lgE-mediated responses. To examine this hypothesis, IgE responses were elicited in denervated skin. A murine model was developed where the footpad was denervated by surgically removing a 2 mm segment of the sciatic nerve, proximal to the …

Three New Coccidia (Apicomplexa) From The Hood Island Lizard, Tropidurus Delanonis, From The Galápagos Archipelago, Aida Luz Aquino-Shuster, Donald W. Duszynski, Howard L. Snell

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Fecal samples of 14 Conolophus subcristatus from Isla Plaza Sur and of 24 Tropidurus delanonis from Isla Española and several satellite islets, Galápagos Islands, Ecuador, collected during June and July 1987 were examined for coccidian oocysts. None of the samples from C. subcristatus contained oocysts, but 11 of 24 (46%) samples from T. delanonis had oocysts when examined. Two Eimeria and 1 Isospora spp. were present, which we describe here as new species. Sporulated oocysts of Eimeria tropidura n. sp. are ellipsoidal, 32.5 x 23.8 (21-38 x 19-30) μm, with spheroidal to subspheroidal sporocysts, 8.2 x 7.9 (7-10 x 5-10) …

Prevalence Of Baculovirus Penaei In Experimentally Infected White Shrimp (Penaeus Vannamei) Relative To Age, Brian D. Leblanc, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Age of Penaeus vannamei influences infections with Baculovirus penaei in different ways. The virus has less effect on host survival in the older of seven tested age-groups of shrimp experimentally administered virus; no virus-induced mortality occurred in postlarvae older than 63 days. Prevalence of newly acquired infections decreases as age increases, sometimes to zero. Prepatency periods appear to increase by a few days in infections in most successively older tested age-groups. Actual and relative numbers of affected hepatopancreatic cells decrease from 75 or 80% typically seen in postlarvae infected when 3 days old to ≤ 5% typically seen in infected …

Replication And Amplification Of Defective Interfering Particle Rn As Of Vesicular Stomatitis Virus In Cells Expressing Viral Proteins From Vectors Containing Cloned Cdnas, Asit K. Pattnaik, Gail W. Wertz

School of Veterinary and Biomedical Sciences: Faculty Publications

Replication and amplification of RNA genomes of defective interfering (DI) particles of vesicular stomatitis virus (VSV) depend on the expression of viral proteins and have untD now been attained only in ceUs coinfected with helper VSV. In the work described in this report, we used a recombinant vaccinia virus-T7 RNA polymerase expression system to synthesize individual VSV proteins in cells transfected with plasmid DNAs that contain cDNA copies of the VSV genes downstream of the T7 RNA polymerase promoter. In this way, we were able to examine the ability of VSV proteins, individually and in combination, to support DI particle …

Coccidia (Apicomplexa) From Heteromyid Rodents In The Southwestern United States, Baja California, And Northern Mexico With Three New Species From Chaetodipus Hispidus, Paulette L. Ford, Donald W. Duszynski, C. T. Mcallister

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Fecal samples from 223 heteromyid rodents of 4 genera and 13 species were collected from California, New Mexico, and Texas and from Baja California Norte and Sonora, Mexico. Of these, 84 (38%) were infected with coccidian oocysts; 72 of 84 (86%) infected animals had only 1 species of coccidian. Eleven species of coccidia were identified including 1 cyclosporan and 10 eimerians; the cyclosporan and 2 of the eimerians are described as new species. Sporulated oocysts of Cyclospora angimurinensis n. sp. were subspheroidal, 21.9 x 19.3 (19-24 x 16-22) μm, with sporocysts lemon-shaped, 11.9 x 9.5 (9-15 x 8-11) μm; it …

Reo-Like Virus In White Shrimp Penaeus Vannamei (Crustacea: Decapoda): Co-Occurrence With Baculovirus Penaei In Experimental Infections, Rena M. Krol, William E. Hawkins, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A virus, tentatively identified as reo-like, occurred concurrently with experimentally-induced Baculovirus penaei (BP) infection in cultured white shrimp larvae Penaeus vannamei. Each shrimp with a reo-like viral infection also had a BP infection, but not all BP-infected shrimp had a reo-like infection. Both viruses occurred in the same tissues and occasionally withln the same cell. The reolike virus developed in epithelial cells of the anterior midgut and in reserve- and fibrillar-cells of the hepatopancreas. The paraspherical and non-enveloped reo-like virions (ca. 50 nm diam.) occurred as unordered aggregates in the cell cytoplasm. Their etiology has not been determined. Reo-like …

Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson

Reports

No abstract provided.

Binder 008, Aerobiotrematidae [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 008, Aerobiotrematidae [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 003, Acanthocolpidae [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 003, Acanthocolpidae [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 017, Bivesiculidae [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Binder 017, Bivesiculidae [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 018, Brachylaemidae [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Binder 018, Brachylaemidae [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 026, Bucephalidae Prosorhynchinae [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 026, Bucephalidae Prosorhynchinae [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 037-038, Cryptogonimidae P-Z [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 037-038, Cryptogonimidae P-Z [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 048, Dicrocoelidae M-Pa [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 048, Dicrocoelidae M-Pa [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 051, Didymozobidae A-B [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 051, Didymozobidae A-B [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 053, Didymozobidae E-L [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 053, Didymozobidae E-L [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 065, Echinostomatidae O-Pat [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 065, Echinostomatidae O-Pat [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.

Created between 1960 and 1990.

Binder 064, Echinostomatidae H-N [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 064, Echinostomatidae H-N [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.

Created between 1960 and 1990.

Binder 067, Echinostomatidae R-Z [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 067, Echinostomatidae R-Z [Trematoda Taxon Notebooks]

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.

Created between 1960 and 1990.

Binder 078, Gorgoderidae A [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 078, Gorgoderidae A [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 076, Fellodostomatidae Q-Z [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 076, Fellodistomatidae Q-Z [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 087, Haploporidae Q-Z [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 087, Haploporidae Q-Z [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.

Binder 086, Haploporidae J-P [Trematoda Taxon Notebooks], Harold W. Manter Laboratory Of Parasitology

Trematoda Taxon Notebooks

Abstract

Binder 086, Haploporidae J-P [Trematoda Taxon Notebooks].

Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.

Created between 1960 and 1990.