| Texto completo | |
| Autor(es): |
da Silva Araujo, Francisca Diana
[1]
;
Santos, Daiene Souza
[2]
;
Pagotto, Carolina Clepf
[1]
;
de Araujo, Welington Luiz
[2]
;
Eberlin, Marcos Nogueira
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Inst Chem, ThoMSon Mass Spectrometry Lab, POB 6154, BR-13084970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Inst Biomed Sci, Dept Microbiol, BR-05508900 Sao Paulo, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Mass Spectrometry; v. 53, n. 1, p. 91-97, JAN 2018. |
| Citações Web of Science: | 0 |
| Resumo | |
The bacteria of the genus Curtobacterium are usually seen as plant pathogen, but some species have been identified as endophytes of different crops and could as such present a potential for disease control and plant growth promotion. We have therefore applied the desorption electrospray ionization mass spectrometry imaging (DESI-MSI) in the direct analysis of living Curtobacterium sp. strain ER1/6 colonies to map the surface metabolites, and electrospray ionization tandem mass spectrometry (ESI-MS/MS) for characterization of these compounds. Several colony-associated metabolites were detected. The ESI-MS/MS showed characteristic fragmentations for phospholipids including the classes of glycerophosphocholine, glycerophosphoglycerol, and glycerophosphoinositol as well as several fatty acids. Although a secure identification was not obtained, many other metabolites were also detected for this bacteria species. Principal component analysis showed that fatty acids were discriminatory for Curtobacterium sp. ER1/6 during inoculation on periwinkle wilt (PW) medium, whereas phospholipids characterize the bacterium when grown on the tryptic soy agar (TSA) medium. (AU) | |
| Processo FAPESP: | 15/07659-3 - Aplicação de espectrometria de massas na análise metabolômica do oomiceto de citros Phytophthora parasitica: identificação de biomarcadores |
| Beneficiário: | Carolina Clepf Pagotto |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 13/24860-9 - Investigação de trocas metabólicas entre micro-organismos endofíticos e patogênicos de Theobroma cacao e Citrus sinensis utilizando imageamento por espectrometria de massas |
| Beneficiário: | Francisca Diana da Silva Araújo |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |