Grape Marc Compost Tea Suppressiveness to Plant Pathogenic Fungi: Role of Siderophores

Diánez, Fernando; Santos, M.; Boix, A.; Cara, M. de; Trillas, Isabel; Avilés, M.; Tello, Julio C.

doi:10.1080/1065657x.2006.10702262

Cited by 39 publications

(23 citation statements)

References 11 publications

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“…Water extract from grape marc compost showed weak nematicidal activity to juveniles and eggs (Oka and Yermiyahu 2002). Diánez et al (2006), assayed the presence of siderophores in various grape marc aerated compost tea (ACT) and there suppressing effect on nine soilborne pathogens.…”

Section: Introductionmentioning

confidence: 99%

Grape marc compost: microbial studies and suppression of soil-borne mycosis in vegetable seedlings

Santos

Diánez

Valle

et al. 2007

World J Microbiol Biotechnol

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Compost suppression of soil-borne diseases in horticultural crops has been attributed to the activities of antagonistic microorganisms. A great diversity of microorganisms, capable of suppressing pathogens naturally colonize compost. A large number of microbes appeared in microbiological analyses of grape marc compost. Most microorganisms were bacteria. Average percentages were 31% mesophilic and 28% thermophylic bacteria, 16% mesophilic actinomycetes and 20% thermophylic actinomycetes. Only a few mould and yeast morphologies were obtained, 4% and 1% respectively. Antagonist in vitro assays were performed with 432 microbial morphologies isolated from grape marc compost. The microbes isolated were extremely effective antagonists in in vitro assays against all the fungal pathogens tested. Seven microorganisms were selected for further bioassay with Rhizoctonia solani in radish, Fusarium oxysporum f. sp. radiciscucumerinum in melon, and Phytophthora parasitica in tomato and two microorganisms with Pythium aphanidermatum in cucumber. Those experiments indicate that grape marc compost reduces the severity of Pythium damping-off in cucumber, but does not reduce the severity of Phytophthora root rot in tomato, Fusarium oxysporum f. sp. radiciscucumerinum in melon and Rhizoctonia solani in radish. Better suppressive effects were not demonstrated by either compost or vermiculite amended with microbes selected from grape marc compost.

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Section: Introductionmentioning

confidence: 99%

Grape marc compost: microbial studies and suppression of soil-borne mycosis in vegetable seedlings

Santos

Diánez

Valle

et al. 2007

World J Microbiol Biotechnol

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“…Elad & Shtienberg (15) e Koné et al (18) observaram a presença de bactérias, actinobactérias e leveduras nos extratos aquosos supressivos e a perda da eficácia da supressividade sob microfiltração ou autoclavagem. A ação dos microrganismos presentes em extratos aquosos sobre a germinação de conídios de fungos pode estar associada à produção de sideróforos (14), metabólitos voláteis (21) e ou pelo mecanismo de antibiose (22). Todos os extratos aquosos e os materiais orgânicos, independentemente da autoclavagem, na concentração de 5% promoveram o crescimento micelial do patógeno (Tabelas 2, 3, 4).…”

Section: Discussão Dos Resultadosunclassified

Efeito de hidrolisado de peixe sobre o crescimento micelial e controle de Cylindrocladium spathiphylli em espatifilo

Visconti

Bettiol²,

Morandi³

2010

Summa phytopathol.

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Fish hydrolyzed (HP), poultry manure (CF), shrimp skin (CC), cattle manure (EB), sewage sludge (LE) and castorbean presscake (TM) were evaluated for their effect of aqueous extracts with and without autoclaving, on mycelial growth and conidial germination of Cylindrocladium spathiphylli. The effect of mixtures of residues with potting mixes and their volatile compounds were also evaluated on the mycelial growth of the pathogen. To evaluate the effect of HP in the suppressiveness to Cylindrocladium spathiphylli, HP was added in potting mix artificially infested, at concentrations of 0, 10, 20, 30, 40 and 50% of the volume of water required to reach the water retention capacity of the potting mix. The mixtures were incubated for 10 days and transferred to pots containing one plug of Spathiphyllum Opal per pot. In the experiments in vitro, aqueous extracts and mixtures containing HP showed the highest suppressiveness against the pathogen. In the Spathiphyllum growing, the suppressiveness occurred at concentrations higher than 20% of fish hidrolyzed.Cylindrocladium spathiphylli Schoulties, El-Gholl & Alfieri (teleomorfo: Calonectria spathiphylli El-Gholl, Uschida, Alfenas, Schub & Alfieri), agente causal da podridão do colo e da raiz de espatifilo (Spathiphyllum wallisi Regel), é o principal patógeno da cultura e ocorre em todos os países onde se cultiva essa ornamental (8,29). A cultura é conduzida basicamente em substratos à base de casca de pinus que são conducentes ao patógeno, acarretando perdas expressivas quando esse se instala no sistema de produção (8,24).O controle da doença é realizado principalmente com a aplicação de fungicidas à base de tiofanato metílico, iprodione, prochloraz e trifumizole (7) ao longo do ciclo da cultura que é de aproximadamente 18 meses. Porém, estes princípios ativos são efetivos somente quando aplicados em condições de baixa pressão da doença (24). As exigências da sociedade para a redução do uso de agrotóxicos associados aos problemas com resistência aos fungicidas (23) tem induzido a busca por métodos alternativos para o controle da doença (29). Assim, a introdução de agentes de biocontrole e a utilização de substratos desinfestados para o patógeno são estudados, porém, até o momento sem muito sucesso para o patossistema. Dessa forma, uma das alternativas é a utilização de resíduos orgânicos incorporados ao substrato padrão com o objetivo de induzir a supressividade ao patógeno (30).

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“…The vast consortium of beneficial microbial antagonists present in compost teas is the most reported factor influencing their efficacy (Weltzien, 1991;Elad & Shtienberg, 1994;McQuilken et al, 1994;Cronin et al, 1996;Scheuerell & Mahaffee, 2004, 2006bDiánez et al, 2006;Gea et al, 2009;Koné et al, 2010). The microorganisms present in the tea may act as pathogen antagonists through their ability to compete for nutrients and/or space (Al-Mughrabi et al, 2008), to destroy pathogens by parasitism (ElMasry et al, 2002), to produce antimicrobial compounds, and/or to induce systemic resistance in plants (Zhang et al, 1998).…”

Section: Introductionmentioning

confidence: 97%

Effect of non-aerated compost teas on damping-off pathogens of tomato

Dionne

Tweddell

Antoun

et al. 2012

Canadian Journal of Plant Pathology

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Compost teas are fermented watery extracts of composted materials that are used for their beneficial effects on plants including antimicrobial activities. Non-aerated compost teas (NCT) prepared from seaweed compost, shrimp powder compost, and chicken, bovine and sheep manure composts were tested for their effect on the in vitro growth of tomato root pathogens and for their effect on the development of damping-off diseases caused by Pythium ultimum and Rhizoctonia solani. Results showed that NCT prepared from the five types of compost had the ability to greatly reduce mycelial growth of P. ultimum, R. solani, Fusarium oxysporum f. sp. radicis-lycopersici and Verticillium dahliae in vitro. Sterilization of the NCT caused complete or partial loss of their inhibitory effect on mycelial growth of the pathogens. Application of NCT decreased the percentage of necrotic seedlings in P. ultimum-inoculated tomato seeds from 42% to 100%, but did not reduce necrosis in R. solani-inoculated seeds. When applied on tomato seedlings inoculated with damping-off pathogens, various NCT also increased seedling fresh and/or dry weights.Résumé: Les thés de compost sont des extraits aqueux fermentés de matériaux compostés. On reconnaît aux thés de compost des effets bénéfiques sur les plantes attribuables à leur activité antimicrobienne. Des thés de composts non-aérés (TCNA) à base de compost d'algues, de compost de poudre de crevette et de composts de fumier de poulet, de bovin et de mouton ont été testés afin d'évaluer leurs effets sur la croissance in vitro de différents agents pathogènes de la tomate. L'effet des TCNA sur le développement de la fonte des semis, causée par Pythium ultimum et Rhizoctonia solani, a également été évalué. Les résultats ont montré que les TCNA à base des cinq types de composts réduisent la croissance mycélienne de P. ultimum, R. solani, Fusarium oxysporum f. sp. radicis-lycopersici et Verticillium dahliae in vitro. La stérilisation des TCNA a par ailleurs conduit à une perte complète ou partielle de leur effet inhibiteur sur la croissance mycélienne des agents pathogènes. Appliqués sur les semences de tomate inoculées avec P. ultimum, les TCNA ont réduit de 42 à 100% le pourcentage de semences présentant des lésions nécrotiques. Les TCNA n'ont pas eu un tel effet chez les semences inoculées avec R. solani. L'application de certains TCNA sur les semences de tomate inoculées avec les agents pathogènes de la fonte des semis a résulté en une augmentation du poids sec et/ou humide des jeunes plants.

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Grape Marc Compost Tea Suppressiveness to Plant Pathogenic Fungi: Role of Siderophores

Cited by 39 publications

References 11 publications

Grape marc compost: microbial studies and suppression of soil-borne mycosis in vegetable seedlings

Grape marc compost: microbial studies and suppression of soil-borne mycosis in vegetable seedlings

Efeito de hidrolisado de peixe sobre o crescimento micelial e controle de Cylindrocladium spathiphylli em espatifilo

Effect of non-aerated compost teas on damping-off pathogens of tomato

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