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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hoch, Gert Pilarska, Daniela K. Dobart, Nina |
| Copyright Year | 2009 |
| Abstract | Lymantria dispar (Lep., Lymantriidae), an important forest defoliator, is host for a variety of entomopathogenic microsporidia. These are obligate intracellular parasites that completely depend on resources provided by the hosts. The microsporidia infecting L. dispar differ in the host tissues that become infected as well as in virulence, with presumably different effects on host physiology. Endoreticulatus schubergi infects the midgut tissue of the host; its virulence is low. We studied the effects of infection with E. schubergi on carbohydrate and lipid levels in the L. dispar host larva. Trehalose titer in the hemolymph increased with larval age. There were no significant differences between infected and uninfected hosts. Glycogen content of the host tissue also increased with age. Levels of this storage carbohydrate were significantly lower in infected larvae at a late stage of infection when insects were either full grown larvae prior to pupation (57.4 ± 5.7 and 36.4 ± 5.2 μg/mg in uninfected controls and infected hosts, respectively) or prepupae (53.2 ± 3.4 vs. 34.7 ± 4.7 μg/mg). Lipid levels in host tissue likewise increased over time and were slightly but not significantly lower in infected L. dispar at a late stage. The results suggest that L. dispar larvae are able to compensate for most of the loss of nutrients to the developing microsporidia. Differences between these findings and the effects of infection with the virulent microsporidium, Vairimorpha disparis, that infects the host’s fat body and causes severe depletion of nutrients in L. dispar larvae are discussed. |
| Starting Page | 351 |
| Ending Page | 356 |
| Page Count | 6 |
| File Format | |
| ISSN | 16124758 |
| Journal | Journal of Pest Science |
| Volume Number | 82 |
| Issue Number | 4 |
| e-ISSN | 16124766 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-06-02 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Glycogen Gypsy moth Host–parasite interaction Lipids Microsporidia Trehalose Forestry Ecology Plant Sciences Plant Pathology Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Plant Science Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science |
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