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White Book: Genetically Modified Crops
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SYSNO ASEP 0325585 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Is the titer of adipokinetic peptides in colorado potato beetle (Leptinotarsa decemlineata) fed on genetically modified potatoes increased by oxidative stress? Title Je hladina adipokinetických peptidů u Leptinotarsa decemlineata živené geneticky modifikovanými bramborami zvýšena oxidačním stresem? Author(s) Kodrík, Dalibor (BC-A) RID, ORCID
Krishnan, N. (US)
Habuštová, Oxana (BC-A) RIDNumber of authors 3 Source Title White Book: Genetically Modified Crops. - České Budějovice : Biology Centre of Academy of Sciences of the Czech Republic, 2009 / Sehnal František ; Drobník Jaroslav - ISBN 978-80-86668-05-3 Pages s. 64-64 Number of pages 1 s. Number of copy 2000 Number of pages 95 Language eng - English Country CZ - Czech Republic Keywords adipokinetic peptides Subject RIV ED - Physiology CEZ AV0Z50070508 - ENTU-I, BC-A (2005-2011) Annotation The level of adipokinetic hormones (AKHs) (Peram-CAH-I and II) in the corpora cardiaca and the hemolymph of Leptinotarsa decemlineata enormously increases in the adults fed on genetically modified potatoes containing either GNA lectin or Cry 3Aa toxin concomitant with increased oxidative stress in gut tissues. A similar enhancement of the AKH titer is achieved when the adults are injected with paraquat that evokes oxidative stress. On the other hand, an injection of exogenous AKH reduces oxidative stress bio-markers in the hemolymph by reducing protein carbonyls and enhancing reduced glutathione levels. These facts indicate that there is a feed-back regulation between an oxidative stressor action and the level of AKH in the insect body, and that AKHs might be involved in the activation of an antioxidant protection mechanism. These results, are to our knowledge, the first evidence for the involvement of AKHs in oxidative stress mitigation, in addition to a plethora of other roles. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2009
Number of the records: 1