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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Induced defense responses in tomato against bacterial spot by proteins synthesized by endophytic bacteria.
Autores:  LANA-FILHO, R.
SOUZA, R. M.
MAGALHÃES, M. M.
VILLELA, L.
ZANOTTO, E.
RIBEIRO-JÚNIOR, P. M.
RESENDE, M. L. V.
Data:  2013-11-13
Ano:  2013
Palavras-chave:  Controle biológico
Bactéria
Bacillus amyloliquefaciens
Resumo:  Some endophytes can synthesize molecules that elicit the induction of plant resistance to infection by pathogens. The objective of this study was to demonstrate that protein fractions 42 and 75 from Bacillus amyloliquefaciens and Bacillus pumilus were capable of acting as elicitors of induced resistance in tomato plants against Xanthomonas vesicatoria, following partial resolution by gel-filtration chromatography. Tomato plants sprayed with protein fractions 42 and 75 reduced, respectively, 63.5 and 56.6% of bacterial spot, compared with control plants. Additionally, these fractions promoted the increase of peroxidase (POX) and polyphenol oxidase (PPO) enzyme activities in treated plants. In SDS-PAGE stained with silver nitrate, protein fractions 42 and 75 appeared as simple bands with estimated molecular mass of 28 and 43 kDa, respectively. We report the partial characterization of two macromolecules synthesized by endophytic bacteria that act as elicitors of systemic resistance in tomato against X. vesicatoria.

2013
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  48640

http://www.alice.cnptia.embrapa.br/handle/doc/971084

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/92430/1/tpp2012-0078.pdf
Editor:  Tropical Plant Pathology, v. 38, n. 4, p. 295-302, 2013.
Relação:  Embrapa Amazônia Oriental - Artigo em periódico indexado (ALICE)
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