Indução de resistência em feijoeiro por filtrado de cultura de Pycnoporus sanguineus contra Pseudocercospora griseola

Viecelli, Clair Aparecida; Stangarlin, José Renato; Kuhn, Odair José; Schwan-Estrada, Kátia Regina Freitas

doi:10.1590/s1982-56762009000200003

Cited by 20 publications

(14 citation statements)

References 6 publications

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“…The cultures were double filtered on double gauze for mycelium removal, and then sterilized through a Millipore membrane (0.45 µm), with a filter system under vacuum for spores removal (crude culture filtrate). This methodology was adapted from Duarte and Archer (2003) and Viecelli et al (2009).…”

Section: Methodsmentioning

confidence: 99%

Allelopathic effects of pathogenic fungi on weed plants of soybean and corn crops

Spiassi¹,

Nóbrega²,

Rosa³

et al. 2015

Biosci. J.

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ABSTRACT:The herbicides application can be reduced with alternative methods, as pathogenic fungi use, that produces several secondary compounds in growth medium, which has phytotoxicity. Thus, the aim of this study was to determine the allelopathic activity of culture filtrate produced by pathogenic fungi: Fusarium solani, Macrophomina phaseolina Fusarium graminearum and Diplodia maydis, on germination and development of horseweed (Conyza canadensis), hairy beggarticks (Bidens pilosa) and wild poinsettia (Euphorbia heterophylla). This effect was also tested on soybean and corn crops. The experimental design was completely randomized with twenty treatments (four filtrates of fungi culture, with 0, 5, 10, 15 e 20% concentrations) and four replications. Data were submitted to analysis of variance and regression. The results indicated that filtered of Fusarium solani culture presented a negative effect on horseweed, hairy beggarticks and wild poinsettia without affecting negatively soybeans crop. Diplodia maydis provided some reduction on horseweed and wild poinsettia growth without causing damage to maize crop.The while Macrophomina phaseolina filtrate decreased a seedlings growth of wild poinsettia without affecting negatively corn. This suggests filtrates can be used to control weeds in a sustainable ecological way as well as an alternative to reduce herbicides application, thus, protecting the environment.

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Section: Methodsmentioning

confidence: 99%

Allelopathic effects of pathogenic fungi on weed plants of soybean and corn crops

Spiassi¹,

Nóbrega²,

Rosa³

et al. 2015

Biosci. J.

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“…This oscillation in enzyme activity after the application of basidiomycete extracts as elicitor is common and found in several studies (Silva et al, 2007;Silva et al, 2008;Viecelli et al, 2009;Toillier et al, 2010Viecelli et al, 2010.…”

Section: Effect Of the L Edodes Ae In Inducting Resistancementioning

confidence: 59%

“…These enzymes are PR-proteins capable of inducing resistance to plants, having direct action on the pathogen or increasing the barrier that it must penetrate. Viecelli et al (2009; also observed an increase in peroxidase and polyphenoloxidase activity after application of Pycnoporus sanguineus extracts in common bean, decreasing angular leaf spot severity.…”

Section: Introductionmentioning

confidence: 67%

Lentinula edodes extract in the control and induction of resistance to common bean pathogens

Oliveira

Menegassi

Maia

et al. 2019

Agraria

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Common bean (Phaseolus vulgaris L.) is among the main crops of national agriculture and can be affected by several diseases. Aiming to develop alternative control methods to chemical control, it was verified the potential of the aqueous extract (AE) from Lentinula edodes in controlling common bean diseases and inducing resistance by the activation of defense enzymes such as peroxidase, catalase and polyphenoloxidase, in addition to evaluating production components. The field experiment consisted of 0, 5%, 10% or 20% acibenzolar-S-methyl (ASM) and fungicide pyraclostrobin treatments as standard treatments. AE was effective in controlling anthracnose at 1% and 5% doses. The activity of all evaluated enzymes was higher at 12 and 24 hours after application of the treatments, with a concentration of 20% standing out. AE at this same dose increased the number of beans per pod and also yield. The aqueous extract of Lentinula edodes at a concentration of 20% is effective in inducing resistance, increasing enzyme levels and increasing yield.

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“…Outros estudos têm relatado indução de polifenoloxidases em folhas não tratadas de feijoeiro. No trabalho desenvolvido por Viecelli et al (2009), foi observado que a atividade da polifenoloxidase foi influenciada pelos tratamentos com filtrado de cultura de P. sanguineus em feijoeiro, na terceira folha tratada, bem como na quarta folha não tratada e inoculada, demonstrando a sistemicidade do efeito; no experimento não se constatou efeito diferencial entre as folhas com e sem inoculação.…”

Section: Resultsunclassified

Extrato Aquoso E Óleo Essencial De Gengibre Induzem Mecanismos Bioquímicos De Defesa Em Feijoeiro

Costa

Moura

Gebauer

et al. 2019

Rev. Agric. Neotrop.

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Derivados de algumas plantas medicinais apresentam potencial no controle alternativo de doenças de plantas, mas ainda há necessidade de maior compreensão sobre os mecanismos envolvidos. O objetivo desse trabalho foi avaliar a indução de mecanismos bioquímicos de defesa em feijoeiro (Phaseolus vulgaris) pelo extrato aquoso (EA) e óleo essencial (OE) de gengibre (Zingiber officinale). Foram avaliadas a atividade de peroxidases e polifenoloxidases em folhas de plântulas e plantas de feijoeiro das variedades Preto Tuiuiu e Carioca Pérola. Em plântulas, avaliou-se concentrações de OE (0, 0,1, 0,5 e 1%) e EA (0, 1, 5 e 10%). Em plantas, foram avaliadas concentrações de OE (0,1% e 1%) e EA (1% e 10%) em folhas tratadas e não tratadas. Também foi avaliada a indução da fitoalexina faseolina em hipocótilos de feijoeiro. O OE e o EA promoveram indução de peroxidases com pontos de máxima entre 57 e 72 horas após o tratamento. Somente o OE promoveu indução de polifenoloxidases. Não foi observado efeito sistêmico em plantas de feijoeiro, mas em hipocótilos houve efeito linear na indução de faseolina. Houve efeito diferencial entre as variedades de feijoeiro utilizadas para alguns atributos avaliados. Os resultados indicam efeito indutor de mecanismos bioquímicos de defesa em feijoeiro pelo OE e EA de gengibre.

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Indução de resistência em feijoeiro por filtrado de cultura de Pycnoporus sanguineus contra Pseudocercospora griseola

Cited by 20 publications

References 6 publications

Allelopathic effects of pathogenic fungi on weed plants of soybean and corn crops

Allelopathic effects of pathogenic fungi on weed plants of soybean and corn crops

Lentinula edodes extract in the control and induction of resistance to common bean pathogens

Extrato Aquoso E Óleo Essencial De Gengibre Induzem Mecanismos Bioquímicos De Defesa Em Feijoeiro

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