Ultrastructure and tissue pathology of two microsporidia infecting the two-spotted lady beetle, Adalia bipunctata L. (Coleoptera: Coccinellidae) and the green lacewing Chrysoperla carnea Stephens (Neuroptera: Chrysopidae), used for biological control

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dc.contributor.advisor Bjørnson, Susan Eleanor
dc.creator Steele, Thomas Jean
dc.date.accessioned 2013-09-14T18:44:06Z
dc.date.available 2013-09-14T18:44:06Z
dc.date.issued 2013
dc.identifier.other QL368 M5 S74 2013
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/25178
dc.description vi, 86 leaves : ill. (some col.) ; 29 cm.
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (leaves 75-81).
dc.description.abstract Two undescribed microsporidia were found in insects that are commercially available for biological control: one from field-collected Adaliae bipunctata and another from Chrysoperla carnea purchased from a commercial insectary. The objective of this study was to describe both microsporidian pathogens by means of their ultrastructure, tissue pathology and ribosomal RNA gene sequences (molecular characterization). Both microsporidia were closely related to several species within the genus Nosema and were given the names Nosema adaliae sp. nov. and Nosema chrysoperlae sp. nov., respectively. Spores of N. adaliae measured 4.25 ± 0.09 x 1.82 ± 0.03 [micrometres] and had an isofilar polar filament with 10-18 coils. Various host tissues were infected, including the fat body, muscles, ovaries, testes, midgut, hindgut and ventral nerve cord. Spores of N. chrysoperlae measured 3.49 ± 0.10 x 1.52 ± 0.05 [micrometres] and had an isofilar polar filament with 8-10 coils. The majority of host tissues were infected except for the ovaries. en_CA
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc QL368.M5
dc.subject.lcsh Microsporidia
dc.subject.lcsh Ladybugs -- Parasites
dc.subject.lcsh Lacewings -- Parasites
dc.subject.lcsh Insects as biological pest control agents
dc.title Ultrastructure and tissue pathology of two microsporidia infecting the two-spotted lady beetle, Adalia bipunctata L. (Coleoptera: Coccinellidae) and the green lacewing Chrysoperla carnea Stephens (Neuroptera: Chrysopidae), used for biological control en_CA
dc.type Text en_CA
thesis.degree.name Master of Science in Applied Science
thesis.degree.level Masters
thesis.degree.discipline Biology
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)


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