Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Peptide diversity in the venom of the social wasp Polybia paulista (Hymenoptera): A comparison of the intra- and inter-colony compositions

Full text
Dias, Nathalia Baptista [1] ; de Souza, Bibiana Monson [1] ; Gomes, Paulo Cesar [1] ; Palma, Mario Sergio [1]
Total Authors: 4
[1] UNESP Sao Paulo State Univ, Ctr Studies Social Insects, Inst Biosci, Rio Claro - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Peptides; v. 51, p. 122-130, JAN 2014.
Web of Science Citations: 12

The venoms of the social wasps evolved to be used as defensive tools to protect the colonies of these insects against the attacks of predators. Previous studies estimated the presence of a dozen peptide components in the venoms of each species of these insects, which altogether comprise up to 70% of the weight of freeze-dried venoms. In the present study, an optimized experimental protocol is reported that utilizes liquid chromatography coupled to electrospray ionization mass spectrometry for the detection of peptides in the venom of the social wasp Polybia paulista; peptide profiles for both intra- and inter-colonial comparisons were obtained using this protocol. The results of our study revealed a surprisingly high level of intra- and inter-colonial variability for the same wasp species. We detected 78-108 different peptides in the venom of different colonies of P. paulista in the molar mass range from 400 to 3000 Da; among those, only 36 and 44 common peptides were observed in the inter- and intra-colony comparisons, respectively. (C) 2013 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 11/51684-1 - System biology as experimental strategy for discovery of novel natural products in the fauna of venomous arthropods from São Paulo State
Grantee:Mario Sergio Palma
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 09/11155-0 - The use of LC-ESI-IT-Tof/MS and MSn system for prospecting new peptides from the venom of the social wasp Polybia paulista.
Grantee:Nathalia Baptista Dias
Support type: Scholarships in Brazil - Master