| Grant number: | 13/09594-0 |
| Support Opportunities: | Regular Research Grants |
| Start date: | August 01, 2014 |
| End date: | July 31, 2016 |
| Field of knowledge: | Biological Sciences - Biochemistry - Molecular Biology |
| Principal Investigator: | Vadim Viviani |
| Grantee: | Vadim Viviani |
| Host Institution: | Centro de Ciências e Tecnologias para a Sustentabilidade (CCTS). Universidade Federal de São Carlos (UFSCAR). Sorocaba , SP, Brazil |
| City of the host institution: | Sorocaba |
Abstract
Bioluminescence in insects is found mainly in Coleoptera and Diptera. In Beetles of the superfamily Elateroidea, bioluminescence involves the same bioluminescence system with luciferins and luciferases well characterized. Beetle luciferin is a benzothiazolic compound, however, its biosynthetic origin remains unknown. The lanterns of bioluminescent beetles probably evolved from extensions of the fat body. In Arachnocampa spp (Diptera: Mycetophylidae), the bioluminescent system remains poorly known, involving lanterns arising from extensions of the Malpighian tubules, an unknown luciferin, an unidentified luciferase and ATP. Although the bioluminescent systems of beetles and Arachnocampa are not evolutionarily related, the involvement of ATP in both systems suggests that Arachnocampa may also employ an AMP-ligase as a luciferase. This hypothesis is supported by recent finding of luciferase-like enzymes in the Malpighian tubules of Zophobas morio (Coleoptera:Tenebrionidae) larvae. Considering that the biosynthetic origin of beetle luciferin and the molecular physiology of the lanterns are poorly known, we aim to investigate the transcriptomes of the adult and larval lanterns, and fat body of Aspisoma lineatum firefly (Coleoptera:Lampyridae), to identify potential enzymatic targets involved with the above processes. Also, considering that no transcriptome of the Malpíghian tubules is currently known for any Coleoptera, and the existence of luciferase-like enzymes of unknown function in the Malpighian tubules of tenebrionid beetles, suggesting a possible evolutive link between AMP-ligases and the origin of Arachnocampa lanterns, we aim to investigate the transcriptome of these organs in Zophobas morio (Coleoptera:Tenebrionidae) larvae comparing with the transcriptome of Arachnocampa flava (Diptera:Mycetophylidae) lanterns. (AU)
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LUCIFERASES DE VAGALUMES METAL E PH-SENSITIVAS MODIFICADAS E USO COMO REAGENTES E INDICADORES INTRACELULARES DE PH E METAIS PESADOS BR 10 2017 023885 7 - Fundação Universidade Federal de São Carlos (UFScar) . Vadim Viviani; Gabriele Verônica De Mello Gabriel - January 2017, 01