dc.contributor.advisor |
Bjørnson, Susan Eleanor |
|
dc.creator |
Le, Jeffrey |
|
dc.date.accessioned |
2011-06-13T15:06:03Z |
|
dc.date.available |
2011-06-13T15:06:03Z |
|
dc.date.issued |
2009 |
|
dc.identifier.other |
QL596 C65 L4 2009 |
|
dc.identifier.uri |
http://library2.smu.ca/xmlui/handle/01/22985 |
|
dc.description |
vi, 36 leaves : ill. ; 29 cm. |
en_CA |
dc.description |
Includes abstract and appendix. |
|
dc.description |
Includes bibliographical references (leaves 31-34). |
|
dc.description.abstract |
An unidentified microsporidium was found in adult Hippodamia convergens Guérin-Méneville that were obtained from a commercial insectary for aphid biological control. Ultrastructure of the microsporidium was examined by transmission electron microscopy. All stages of the microsporidium were diplokaryotic and the pathogen developed in direct contact with host cell cytoplasm. Two morphologically distinct spores were observed. The first type had a thin exospore, thickened endospore, and typical internal spore structures. The second spore type was atypical in appearance, lacking any discernable internal structures. Typical and atypical spores measured 3.5 ± 0.2 x 2.06 ± 0.19 μm ( n = 10) and 3.38 ± 0.8 x 2.13 ± 0. 16 μm ( n = 10), respectively. Based on spore dimensions and pathogen ultrastructure, the results of this study indicate that the microsporidium in question is likely Nosema hippodamiae Lipa & Steinhaus. Further evidence based on molecular techniques is required for continuation. |
en_CA |
dc.description.provenance |
Submitted by Dianne MacPhee (dianne.macphee@smu.ca) on 2011-06-13T15:06:03Z
No. of bitstreams: 0 |
en |
dc.description.provenance |
Made available in DSpace on 2011-06-13T15:06:03Z (GMT). No. of bitstreams: 0
Previous issue date: 2009 |
en |
dc.language.iso |
en |
en_CA |
dc.publisher |
Halifax, N.S. : Saint Mary's University |
en_CA |
dc.subject.lcc |
QL596.C65 |
|
dc.subject.lcsh |
Ladybugs -- Parasites |
|
dc.subject.lcsh |
Hippodamia -- Parasites |
|
dc.subject.lcsh |
Microsporidia |
|
dc.title |
Ultrastructure of an unidentified microsporidium from the convergent lady beetle, Hippodamia convergens Guérin-Méneville |
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.) |
|