dc.contributor.author |
Malone, Louise Anne |
en |
dc.date.accessioned |
2008-09-19T01:08:22Z |
en |
dc.date.available |
2008-09-19T01:08:22Z |
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dc.date.issued |
1979 |
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dc.identifier.issn |
THESIS |
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dc.identifier.uri |
http://hdl.handle.net/2292/2945 |
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dc.description |
Restricted Item. Print thesis available in the University of Auckland Library or may be available through Interlibrary Loan. |
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dc.description.abstract |
A microsporidian disease was found occurring at high frequencies in New Zealand codling moth, Cydia pomonella (L.) populations. The pathogen is identified as Nosema carpocapsae Paillot and its morphology and development are described from experimentally infected codling moth larvae. The meronts are spherical with one, two, or four nuclei and the sporonts are either fusiform or oval. Development of spores may occur in nearly all host tissues except nervous tissue. The binucleate spores showed considerable variation in size, 2.42 to 3.86 x 1.25 to 3.13 ym (alcohol-fixed, Giemsa-stained). The polar filament was normally coiled 11 times (range 9 to 13) at an angle of 53.5° to the long axis of the spore. Its maximum observed length was 75 ym. The IC50fs for different
larval instars were all similar (range 3.95 x 103 to 6.72 x 101 spores per ml). Spore loads in adults ranged from 8.0 x 106 to 7.1 x 107 spores and varied with the age of the larva at infection and the dose received.
Nosema carpocapsae was transovarially transmitted and reduced the fecundity
and fertility of infected female moths. |
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dc.publisher |
ResearchSpace@Auckland |
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dc.relation.isreferencedby |
UoA218473 |
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dc.rights |
Restricted Item. Print thesis available in the University of Auckland Library or may be available through Interlibrary Loan. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
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dc.title |
A microsporidian disease of codling moth in New Zealand |
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dc.type |
Thesis |
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thesis.degree.grantor |
The University of Auckland |
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thesis.degree.level |
Masters |
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dc.rights.accessrights |
http://purl.org/eprint/accessRights/ClosedAccess |
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dc.identifier.wikidata |
Q112109529 |
|