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https://hdl.handle.net/2440/44558
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dc.contributor.author | Rahman, M. | - |
dc.contributor.author | Roberts, H. | - |
dc.contributor.author | Schmidt, O. | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Journal of Invertebrate Pathology, 2007; 96(2):125-132 | - |
dc.identifier.issn | 0022-2011 | - |
dc.identifier.issn | 1096-0805 | - |
dc.identifier.uri | http://hdl.handle.net/2440/44558 | - |
dc.description.abstract | Tolerance to Bacillus thuringiensis crystal endotoxins (Bt-toxins) is correlated with an elevated immune status in larvae of the flour moth Ephestia kuehniella. To gain more specific information about the effector pathways involved in the protection against the toxin, we studied the effects of Bt-toxin formulations in susceptible (non-induced) and tolerant (immune-induced) larvae after natural (parasitism-mediated) and chemical (tropolone-mediated) suppression of defence reactions. Although melanization in hemolymph was significantly reduced, there was no significant effect on susceptibility to the toxin in parasitised or tropolone-treated larvae. This suggests that melanization of hemolymph is correlated with an elevated immune status but not responsible for the observed tolerance to Bt-toxin. To examine whether hemolymph proteins exist in the gut lumen and function as pro-coagulants, we compared gut and plasma proteins of immune-induced with those of non-induced larvae. Here we show that the lipid carrier lipophorin represents a major component in the gut lumen and interacts with mature Bt-toxin to form a complex. | - |
dc.description.statementofresponsibility | M. Mahbubur Rahman, Harry L.S. Roberts and Otto Schmidt | - |
dc.description.uri | http://www.elsevier.com/wps/find/journaldescription.cws_home/622883/description#description | - |
dc.language.iso | en | - |
dc.publisher | Academic Press Inc | - |
dc.source.uri | http://dx.doi.org/10.1016/j.jip.2007.03.018 | - |
dc.subject | Hemolymph | - |
dc.subject | Animals | - |
dc.subject | Lepidoptera | - |
dc.subject | Bacillus thuringiensis | - |
dc.subject | Gram-Positive Bacterial Infections | - |
dc.subject | Tropolone | - |
dc.subject | Lipoproteins | - |
dc.subject | Bacterial Proteins | - |
dc.subject | Bacterial Toxins | - |
dc.subject | Endotoxins | - |
dc.subject | Pest Control, Biological | - |
dc.subject | Immune Tolerance | - |
dc.subject | Larva | - |
dc.subject | Female | - |
dc.subject | Male | - |
dc.subject | Hemolysin Proteins | - |
dc.title | Tolerance to Bacillus thuringiensis endotoxin in immune-suppressed larvae of the flour moth Ephestia kuehniella | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.jip.2007.03.018 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 6 |
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