Data/hora: 04/06/2024 18:25:18

Biblioteca(s): | Embrapa Amazônia Oriental.
Data corrente: | 13/11/2013
Data da última atualização: | 31/10/2022
Autoria: | LANA-FILHO, R.; SOUZA, R. M.; MAGALHÃES, M. M.; VILLELA, L.; ZANOTTO, E.; RIBEIRO-JÚNIOR, P. M.; RESENDE, M. L. V.
Afiliação: | Roberto Lanna-Filho, Universidade Federal do Rio Grande do Sul; Ricardo M. Souza, UFLA; MARCELO MURAD MAGALHAES, CPATU; L. Villela, UFLA; EDGARD ZANOTTO, UFLA; Pedro M. Ribeiro-Júnior, UFLA; Mário L. V. Resende, UFLA.
Título: | Induced defense responses in tomato against bacterial spot by proteins synthesized by endophytic bacteria.
Ano de publicação: | 2013
Fonte/Imprenta: | Tropical Plant Pathology, v. 38, n. 4, p. 295-302, 2013.
Idioma: | Inglês
Conteúdo: | 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.
Thesagro: | Bactéria; Controle Biológico.
Thesaurus Nal: | Bacillus amyloliquefaciens.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/92430/1/tpp2012-0078.pdf
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (48640-1) - UPC - AP - DD -  -  -  - DIS