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.)

MALDI-TOF MS identification of microbiota associated with pest insect Diabrotica speciosa

Full text
Perlatti, Bruno [1] ; Luiz, Anderson L. [1] ; Prieto, Evandro L. [1] ; Fernandes, Joao B. [1] ; das Gracas Fernandes da Silva, Maria Fatima [1] ; Ferreira, Douglas [2] ; Costa, Eduardo N. [3] ; Boica Junior, Arlindo L. [3] ; Forim, Moacir R. [1]
Total Authors: 9
[1] Univ Fed Sao Carlos, Dept Chem, Nat Prod Lab, Rod Washington Luiz Km 235, BR-13565905 Sao Carlos, SP - Brazil
[2] Fed Univ Western Bahia, Multidisciplinary Ctr Luis Eduardo Magalhaes, Rodovia BA 827, BR-47800000 Barreiras - Brazil
[3] Sao Paulo State Univ, Dept Plant Protect, Coll Agr & Vet Sci, FCAV, UNESP, Via Acesso Prof Paulo Donato Castellane Km 5, BR-14849900 Jaboticabal - Brazil
Total Affiliations: 3
Document type: Journal article
Source: AGRICULTURAL AND FOREST ENTOMOLOGY; v. 19, n. 4, p. 408-417, NOV 2017.
Web of Science Citations: 5

Resistance development in pest insects has guided the advance of cleaner and more effective strategies for pest control. An interesting and promising strategy is the manipulation of insects via their gut microbiota. To evaluate the feasibility of this strategy, Diabrotica speciosa, a highly polyphagous pest insect from South America that causes substantial damage to several important crops, was reared under controlled conditions. Aerobic culturable bacteria were isolated from the gut of D. speciosa and identified using proteomic fingerprints obtained by matrix-assisted laser desorption ionization coupled to time-of-flight mass spectrometry (MALDI-TOF MS), as well as by genomic methods via partial sequencing of the 16S rRNA gene. Seventy-three strains belonging to 17 genera and up to 29 different species were isolated. -Proteobacteria of the orders Pseudomonadales and Enterobacteriales were the predominant. A core gut microbiome for the genus Diabrotica could be inferred when microbiotas from different species from the genus were compared. Molecular and spectrometric techniques indicated complete agreement of genera classification, although cluster analysis revealed distinct taxonomic grouping patterns. MALDI-TOF MS provided reliable identification of culturable gut bacteria, demonstrating similar efficacy, with cheaper and faster results relative to partial 16S rRNA gene sequencing, and also showed an interesting and unexpected phyloproteomic correlation. (AU)

FAPESP's process: 11/00970-4 - Nano and micro particles from Meliaceae extracts for pest control using lignin from sugarcane
Grantee:Eveline Soares Costa
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 11/11860-5 - Phytochemical studies on plants from cerrado and their potential to control symbiont microorganisms of insect plague
Grantee:Moacir Rossi Forim
Support type: Regular Research Grants