Rhizobacterial induction of systemic resistance in tomato plants: non-specific protection and increase in enzyme activities

Silva, Harllen Sandro Alves; Silva, Reginaldo Barboza da; Macagnan, Dirceu; Halfeld-Vieira, B. de A.; Pereira, Maria Cristina Baracat; Mounteer, Ann Honor

doi:10.1016/s1049-9644(03)00163-4

Cited by 192 publications

(91 citation statements)

References 32 publications

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“…POD activity was determined using guaiacol as the substrate [33]. The reaction mixture, which consisted of 20 ml of crude extract, 60 ml of a solution containing guaiacol, hydrogen peroxide (H 2 O 2 ) and phosphate buffer (125 ml of guaiacol and 153 ml of H 2 O 2 in 50 ml of 0.1 M sodium phosphate buffer, pH 6.0), was incubated at 30 C for 20 min and stopped by adding 10 ml of 6 N HCl.…”

Section: Assay Of Pod Activitymentioning

confidence: 99%

Abscisic acid enhances resistance to Alternaria solani in tomato seedlings

Song

Hong

et al. 2011

Plant Physiology and Biochemistry

108

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Section: Assay Of Pod Activitymentioning

confidence: 99%

Abscisic acid enhances resistance to Alternaria solani in tomato seedlings

Song

Hong

et al. 2011

Plant Physiology and Biochemistry

108

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“…Por sua vez, o isolado de Bacillus cereus, com comprovada ação na indução de resistência contra Alternaria solani, Corynespora cassiicola, Stemphilium solani, Oidium lycopersici e Xanthomonas campestris pv. vesicatoria (24), foi cultivado em meio 523 de Kado & Heskett por 48 horas na ausência de luz a 25 ºC, preparando-se suspensão ajustada para 10 8 células por mL a partir da lavagem das placas de petri (16).…”

Section: Obtenção E Manutenção Dos Microrganismosunclassified

Custo adaptativo da indução de resistência em feijoeiro mediada pela rizobactéria Bacillus cereus ou acibenzolar-S-metil: atividade de enzimas, síntese de fenóis e lignina e biomassa

Kuhn

Pascholati

2010

Summa phytopathol.

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Plants that use resources to defend themselves in the absence of pests or pathogens will pay off with energy costs that can reflect in the productivity. Thus, the objective of this work was to evaluate the fitness costs of the resistance induced in bean plants, before the presence of the pathogen, by using biotic (Bacillus cereus) and abiotic (acibenzolar-S-methyl, ASM) inducers, applied 2, 3 or 4 times during the cycle of the culture. The protecting effect was evaluated against the bacterium Xanthomonas axonopodis pv. Keywords: Chitinase β-1,3-glucanase; peroxidase; Phaseolus vulgaris; metabolism; yield. Palavras-chave adicionais:Quitinase; β-1,3-glucanase; peroxidase; Phaseolus vulgaris; metabolismo; produtividade. RESUMOPlantas que utilizam recursos para defesa na ausência de pragas ou patógenos, arcarão com custos energéticos que podem refletir na sua produtividade. Assim, teve-se por objetivo avaliar os custos adaptativos da indução de resistência, antes da chegada do patógeno, em feijoeiro induzido por um indutor biótico (Bacillus cereus) e um abiótico (acibenzolar-S-metil, ASM), em 2, 3 ou 4 aplicações distribuídas ao longo do ciclo da cultura. Avaliou-se o efeito protetor contra a bactéria Xan thomonas axono podi s pv. ph ase oli , além d a at ivid ade de peroxidase, quitinase, β-1,3-glucanase, síntese de lignina, fenóis e crescimento com base na matéria seca. Observou-se que os indutores Kuhn, O.J. & Pascholati, S.F.. Custo adaptativo da indução de resistência em feijoeiro mediada pela rizobactéria Bacillus cereus ou acibenzolar-S-metil: atividade de enzimas, síntese de fenóis e lignina e biomassa. Summa Phytopathologica, v.36, n.2, p.107-114, 2010. synthesis and plant growth were evaluated too. It was observed that the inducers protected the bean plants against X. axonopodis pv. phaseoli. The ASM increased the activity of peroxidase, chitinase and β-1,3-glucanase, while B. cereus only increased peroxidase activity. Unlike B. cereus, the ASM increased lignin synthesis and decreased ph enolic c ompound cont ent and pla nt growt h . Th erefore, t he resistance induced by ASM represents high fitness costs for bean plants, while the resistance induced by B. cereus represents low cost and its potential use can be explored.

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“…Alguns destes trabalhos buscam o controle de bactérias fitopatogênicas como de Pseudomonas syringae pv. tomato pela microbiolização de sementes de tomate com rizobactéria mostrando aumento de atividade de peroxidases (23), ou com antagonista UFV-IEA6, também provocando aumento de peroxidase (18), embora em ambos os trabalhos tenham sido avaliadas as atividades também de outras enzimas (felilalanina amônia-liases, glucanases, lipoxigenases, peroxidases e polifenoloxidase); outros, de viroses como a causada por ToMV, quando verificou-se que além do aumento da atividade de enzimas, o biocontrole ocorria também pelo aumento de teores de proteínas como o provocado pela aplicação de ácido salicílico e de ácido acetil salicílico, com comportamento diferenciado em dois cultivares de tomate inoculados (8).…”

Section: Mfunclassified

Alterações metabólicas em plantas de feijão originadas de sementes microbiolizadas por Pseudomonas sp. e inoculadas com Xanthomonas axonopodis pv. phaseoli

2009

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Many enzymes are involved in plant defense a gainst pathogens. T he purpose of this stu dy was to verify altera tions in a ctivity of some enzymes in bea n pla nts origina ted from microbioliza tion of seeds with a fluorescent isolate (DFs84 2) of Pseu do mo na s. Bean seeds (cv. "BRS Valente") were immersed in a bacterial suspension of a 24 hours old Pseudomonas culture (OD 540 =0,5) known as a Xanthomonas axonopodis pv. phaseoli biocontroler. Check treatment consisted of seeds immersed in a saline solution (NaCl 0,85%). After microbiolization for 5 hours at 10 o C, seeds were sowed in a non sterilized substrate composed of soil, sand and bovine manure mixture (3:1:1 ratio) disposed in pots in a greenhouse. The pathogen was inoculated by cutting the third true leaves with scissors previously immersed in the bacterial suspension (X. ax onop odis pv. ph ase oli) prepared from a 24 hou rs old cu ltu re (OD 540 =0,4). Plants were kept in moister chambers for 24 hours before and after the inoculation. For protein extraction preparation, the three Silva E. G.; Moura A. B.; Bacarin, M.A.; Deuner, C.C. Metabolic alterations on bean plants originated from microbiolization of seeds with Pseudomonas sp. and inoculated with Xanthomnas axonopodis pv. phaseoli. Summa Phytopathologica, v.35, n.2, p.98-104, 2009

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Rhizobacterial induction of systemic resistance in tomato plants: non-specific protection and increase in enzyme activities

Cited by 192 publications

References 32 publications

Abscisic acid enhances resistance to Alternaria solani in tomato seedlings

Abscisic acid enhances resistance to Alternaria solani in tomato seedlings

Custo adaptativo da indução de resistência em feijoeiro mediada pela rizobactéria Bacillus cereus ou acibenzolar-S-metil: atividade de enzimas, síntese de fenóis e lignina e biomassa

Alterações metabólicas em plantas de feijão originadas de sementes microbiolizadas por Pseudomonas sp. e inoculadas com Xanthomonas axonopodis pv. phaseoli

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