Effect of salt compounds on mycelial growth, sporulation and spore germination of various potato pathogens

Mills, Aaron; Platt, H. W.; Hurta, Robert A. R.

doi:10.1016/j.postharvbio.2004.05.022

Cited by 90 publications

(71 citation statements)

References 44 publications

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“…BiS at all concentrations had the least inhibitory effect on the fungus and the lowest concentration (10%) promoted its growth excelling the control; a similar effect was reported by Mills et al (2004), who found that sodium bicarbonate stimulated mycelial growth of Verticillium albo-atrum.…”

Section: Resultados Y Discusión A) Prueba De Difusión En Agarsupporting

confidence: 80%

“…The objective of this test was to establish and to prevent germination; mineral preparations are able to cause mortality to formed spores. Table 3 shows the baja (10%) promovió su crecimiento superando al testigo; un efecto similar fue reportado por Mills et al (2004), quienes encontraron que el bicarbonato de sodio estimuló el crecimiento micelial de Verticillium albo-atrum.…”

Section: Tratamientounclassified

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Efecto de preparados minerales sobre el crecimiento y desarrollo in vitro de Moniliophthora roreri (Cif. & Par.) Evans

Fonseca

González

Báez

et al. 2017

Remexca

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El presente estudio se desarrolló con el objetivo de evaluar en condiciones de laboratorio, la actividad fungicida sobre Moniliophthora roreri de los preparados minerales: caldo visosa (CV), caldo bordelés más permanganato de potasio (CBP), caldo bordelés más sulfato de zinc y sulfato de magnesio (CBS), caldo de bicarbonato de sodio (BiS), caldo silicosulfocálcico (SSC) y polisulfuro de calcio (PC). Se realizaron dos bioensayos. En el primero, el efecto inhibitorio sobre el crecimiento del hongo se evaluó mediante la técnica de difusión en agar, los compuestos fueron probados en cinco concentraciones (50, 40, 30, 20 y 10% v/v). En el segundo, mediante la técnica de cultivo en medio líquido en tubos de ensayo se determinó el efecto sobre la formación y germinación de esporas del hongo; el medio de cultivo consistió de una solución de agua más extracto de cacao (1:1 v/v) a la cual se adicionaron esporas del hongo y 50% (v/v) de cada preparado mineral. Con excepción del BiS al 10%, el crecimiento micelial fue inhibido total o parcialmente por los demás preparados minerales, presentando diferencias estadísticamente significativas con el testigo. Los preparados SSC y PC fueron los más eficaces inhibiendo 100% de crecimiento micelial aún en la concentración de 10%. La prueba en medio líquido mostró que a las 96 horas los preparados SSC y PC fueron los más eficaces, llegando a reducir el número de esporas en 98.2 y 79.9% respectivamente; solo se presentó germinación de esporas en el tratamiento testigo. Se observó la formación de esporas en los tratamientos BiS en todas las concentraciones y en el testigo, pero ningún preparado mineral permitió la germinación de esporas.

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Section: Resultados Y Discusión A) Prueba De Difusión En Agarsupporting

confidence: 80%

Section: Tratamientounclassified

Efecto de preparados minerales sobre el crecimiento y desarrollo in vitro de Moniliophthora roreri (Cif. & Par.) Evans

Fonseca

González

Báez

et al. 2017

Remexca

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show abstract

“…When comparing oomycetes with fungi, FENN and COFFEY (1984) found that, except at the lowest concentration of that compound, growth of Phytophthora species was inhibited by 80% or more, while R. solani was inhibited by 8 to 38% at all the concentrations assayed. Similar results were obtained by MILLS et al (2004) when they compared P. infestans, P. erythroseptyca and F. solani var. coeruleum.…”

Section: Discussionsupporting

confidence: 83%

Antimicrobial activity of phosphites against different potato pathogens

et al. 2010

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Phosphites have low-toxicity on the environment and show high efficacy in controlling oomycete diseases in plants, both by a direct and an indirect mechanism. We have shown that they are also effective in reducing disease symptoms produced by Phytophthora infestans, Fusarium solani and Rhizoctonia solani when applied to potato seed tubers. To gain better insight into the direct mode of action of phosphites on different potato pathogens, and to ascertain chemical determinants in their direct antimicrobial activity, four potato pathogens were assayed with respect to sensitivity toward calcium, potassium and copper phosphites (CaPhi, KPhi and CuPhi, respectively). The influence of acidification and ionic strength changes after Phi addition on the antimicrobial activity, and the fungicidal or fungistatic activity, were evaluated. Results showed that phosphites were able to inhibit growth of all pathogens. Phytophthora infestans was the most inhibited pathogen by all phosphites, followed by Streptomyces scabies, while Rhizoctonia solani and Fusarium solani were less inhibited. CuPhi had the highest antimicrobial activity against the four pathogens analysed, and CaPhi and KPhi showed similar antimicrobial activities. Inhibitions by CuPhi and CaPhi could be partially explained by acidification of the media. However, results obtained with KPhi demonstrated that the phosphite anion has antimicrobial activity itself. The increase in ionic strength after Phi addition was not important in the antimicrobial activity of Phi. The activity of phosphites on germination of F. solani spores showed to be fungistatic rather than fungicidal.

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“…In the same sense, Mills et al, also reported that PS has significantly inhibited the growth of B. cinerea, F. solani var. coeruleum, Phytophthora erythroseptica and P. infestans infecting potato while [47,48] found that PS has completely suppressed V. dahliae growth at 0.25%.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies reported that PB has significantly inhibited in vitro growth of various plant pathogens [17,31,41,47,[57][58][59][60]. In this regard, Abdel et al, demonstrated that PB has significantly reduced the linear growth of A. solani, F. solani, F. oxysporum and Pythium sp [61].…”

Section: Discussionmentioning

confidence: 99%

Comparative Efficacy of Potassium Salts Against Soil-borne and Air-borne Fungi and Their Ability to Suppress Tomato Wilt and Fruit Rots

Jabnoun‐Khiareddine¹,

Abdallah²,

El-Mohamedy³

et al. 2016

J Microb Biochem Technol

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Effect of salt compounds on mycelial growth, sporulation and spore germination of various potato pathogens

Cited by 90 publications

References 44 publications

Efecto de preparados minerales sobre el crecimiento y desarrollo in vitro de Moniliophthora roreri (Cif. & Par.) Evans

Efecto de preparados minerales sobre el crecimiento y desarrollo in vitro de Moniliophthora roreri (Cif. & Par.) Evans

Antimicrobial activity of phosphites against different potato pathogens

Comparative Efficacy of Potassium Salts Against Soil-borne and Air-borne Fungi and Their Ability to Suppress Tomato Wilt and Fruit Rots

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