| Texto completo | |
| Autor(es): |
Margarita Cutino-Jimenez, Ania
[1]
;
Martins Menck, Carlos Frederico
[2]
;
Cambas, Yusdiel Torres
[3]
;
Diaz-Perez, Juan Carlos
[4]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Oriente, Ctr Studies Ind Biotechnol CEBI, Fac Nat & Exact Sci, Ave Patricio Lumumba S-N, Reparto Jimenez 90500, Santiago De Cub - Cuba
[2] Univ Sao Paulo, Inst Biomed Sci, Dept Microbiol, Av Prof Lineu Prestes 1374, BR-05508000 Sao Paulo, SP - Brazil
[3] Univ Oriente, Fac Nat & Exact Sci, Dept Biol & Geog, Ave Patricio Lumumba S-N, Reparto Jimenez 90500, Santiago De Cub - Cuba
[4] Univ Georgia, Dept Hort, Tifton, GA 31793 - USA
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Brazilian Journal of Microbiology; v. 51, n. 4 JUN 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
The Xanthomonadaceae family comprises the genera Xanthomonas and Xylella, which include plant pathogenic species that affect economically important crops. The family also includes the plant growth-promoting bacteria Pseudomonas geniculata and Stenotrophomonas rhizophila, and some other species with biotechnological, medical, and environmental relevance. Previous work identified molecular signatures that helped to understand the evolutionary placement of this family within gamma-proteobacteria. In the present study, we investigated whether insertions identified in highly conserved proteins may also be used as molecular markers for taxonomic classification and identification of members within the Xanthomonadaceae family. Four housekeeping proteins (DNA repair and replication-related and protein translation enzymes) were selected. The insertions allowed discriminating phytopathogenic and plant growth-promoting groups within this family, and also amino acid sequences of these insertions allowed distinguishing different genera and, eventually, species as well as pathovars. Moreover, insertions in the proteins MutS and DNA polymerase III (subunit alpha) are conserved in Xylella fastidiosa, but signatures in DNA ligase NAD-dependent and Valyl tRNA synthetase distinguish particular subspecies within the genus. The genus Stenotrophomonas and Pseudomonas geniculata could be distinguishable based on the insertions in MutS, DNA polymerase III (subunit alpha), and Valyl tRNA synthetase, although insertion in DNA ligase NAD-dependent discriminates these bacteria at the species level. All these insertions differentiate species and pathovars within Xanthomonas. Thus, the insertions presented support evolutionary demarcation within Xanthomonadaceae and provide tools for the fast identification in the field of these bacteria with agricultural, environmental, and economic relevance. (AU) | |
| Processo FAPESP: | 19/19435-3 - Papel de danos no DNA e função mitocondrial em envelhecimento vascular, imune e neurológico (DNA MoVINg) |
| Beneficiário: | Carlos Frederico Martins Menck |
| Linha de fomento: | Auxílio à Pesquisa - Temático |