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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
17/11/2021 |
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Data da última atualização: |
17/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WANDERLEY, K.; SOUSA, D.; SILVA, G.; MAIA, J.; SILVA, M.; VIDAL, M. S.; BALDANI, J. I.; MENESES, CARLOS H. G. de. |
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Afiliação: |
KATYANNE WANDERLEY, UNIVERSIDADE ESTADUAL DA PARAIBA; DAYSE SOUSA, Universidade Estadual da Paraíba; GABRIEL SILVA, UNIVERSIDADE ESTADUAL DA PARAIBA; JOSEMIR MAIA, UNIVERSIDADE ESTADUAL DA PARAIBA; MARIA SILVA, UNIVERSIDADE ESTADUAL DE PARAIBA; MARCIA SOARES VIDAL, CNPAB; JOSE IVO BALDANI, CNPAB; CARLOS H. G.DE MENESES, UNIVERSIDADE ESTADUAL DA PARAIBA. |
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Título: |
Tyrosine kinase self-phosphorylation controls exopolysaccharide biosynthesis in Gluconacetobacter diazotrophicus strain Pal5 |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Life, v. 11. p. 1231, 2021. |
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DOI: |
https://doi.org/10.3390/life11111231 |
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Idioma: |
Inglês |
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Conteúdo: |
The biosynthesis of exopolysaccharides (EPSs) is essential for endophytic bacterial colonisation in plants bacause this exopolymer both protects bacterial cells against the defence and oxidative systems of plants and acts on the plant colonisation mechanism in Gluconacetobacter diazotrophicus. The pathway involved in the biosynthesis of bacterial EPS has not been fully elucidated, and several areas related to its molecular regulation mechanisms are still lacking. G. diazotrophicus relies heavily on EPS for survival indirectly by protecting plants from pathogen attack as well as for endophytic maintenance and adhesion in plant tissues. Here, we report that EPS from G. diazotrophicus strain Pal5 is a signal polymer that controls its own biosynthesis. EPS production depends on a bacterial tyrosine (BY) kinase (Wzc) that consists of a component that is able to phosphorylate a glycosyltranferase or to self-phosphorylate. EPS interacts with the extracellular domain of Wzc, which regulates kinase activity. In G. diazotrophicus strains that are deficient in EPS production, the Wzc is rendered inoperative by self-phosphorylation. The presence of EPS promotes the phosphorylation of a glycosyltransferase in the pathway, thus producing EPS. Wzc-mediated self-regulation is an attribute for the control of exopolysaccharide biosynthesis in G. diazotrophicu |
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Palavras-Chave: |
Autophosphorylatio; Exopolymer production; Plant growth promoting bacteria. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02144naa a2200253 a 4500
001 2136243
005 2021-11-17
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/life11111231$2DOI
100 1 $aWANDERLEY, K.
245 $aTyrosine kinase self-phosphorylation controls exopolysaccharide biosynthesis in Gluconacetobacter diazotrophicus strain Pal5$h[electronic resource]
260 $c2021
520 $aThe biosynthesis of exopolysaccharides (EPSs) is essential for endophytic bacterial colonisation in plants bacause this exopolymer both protects bacterial cells against the defence and oxidative systems of plants and acts on the plant colonisation mechanism in Gluconacetobacter diazotrophicus. The pathway involved in the biosynthesis of bacterial EPS has not been fully elucidated, and several areas related to its molecular regulation mechanisms are still lacking. G. diazotrophicus relies heavily on EPS for survival indirectly by protecting plants from pathogen attack as well as for endophytic maintenance and adhesion in plant tissues. Here, we report that EPS from G. diazotrophicus strain Pal5 is a signal polymer that controls its own biosynthesis. EPS production depends on a bacterial tyrosine (BY) kinase (Wzc) that consists of a component that is able to phosphorylate a glycosyltranferase or to self-phosphorylate. EPS interacts with the extracellular domain of Wzc, which regulates kinase activity. In G. diazotrophicus strains that are deficient in EPS production, the Wzc is rendered inoperative by self-phosphorylation. The presence of EPS promotes the phosphorylation of a glycosyltransferase in the pathway, thus producing EPS. Wzc-mediated self-regulation is an attribute for the control of exopolysaccharide biosynthesis in G. diazotrophicu
653 $aAutophosphorylatio
653 $aExopolymer production
653 $aPlant growth promoting bacteria
700 1 $aSOUSA, D.
700 1 $aSILVA, G.
700 1 $aMAIA, J.
700 1 $aSILVA, M.
700 1 $aVIDAL, M. S.
700 1 $aBALDANI, J. I.
700 1 $aMENESES, CARLOS H. G. de
773 $tLife$gv. 11. p. 1231, 2021.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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