Drying and wetting sclerotia promotes biological control of Sclerotium rolfsii Sacc

Smith, A.M.

doi:10.1016/0038-0717(72)90001-6

Cited by 28 publications

(3 citation statements)

References 4 publications

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“…Germinated sclerotia are much more susceptible to antagonists than viable non-germinated ones (Smith, 1972). Non-germinated sclerotia can have their viability decreased by some amendments, thus becoming more sensitive to antagonistic action by other microorganisms (Hadar & Gorodecki, 1991).…”

Section: Introductionmentioning

confidence: 99%

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

Blum

Rodrı́guez-Kábana

2004

Fitopatol. bras.

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The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soil-borne diseases. This study evaluated the effects of benzaldehyde and the dried powders of kudzu, velvetbean, and pine-bark as soil amendments on germination and formation of sclerotia, on mycelial growth of Sclerotium rolfsii, on plant survival, and disease incidence. The data showed that high amounts of benzaldehyde (0.4 ml kg-1 of soil) and velvetbean (100 g kg-1) inhibited S. rolfsii mycelial growth and sclerotium germination. However, low amounts of benzaldehyde (0.1 ml kg-1), kudzu (25 g kg-1), and pine-bark (25 g kg-1) stimulated mycelial growth and sclerotium germination. Kudzu (25-100 g kg-1) and velvetbean (25-100 g kg-1) inhibited the formation of sclerotia. Nevertheless, benzaldehyde at 0.2 and 0.4 ml kg-1 stimulated the formation of sclerotia. Kudzu (50 and 100 g kg-1) and pine-bark (50 g kg-1) favored the colonization of sclerotia by Trichoderma sp. The numbers of soybean (Glycine max) plants were higher and diseased plants were lower than the non-amend soil in the following treatments: kudzu (50 and 100 g kg-1), velvetbean (50 and 100 g kg-1), and pine-bark (50 g kg-1). Disease severity on tomato (Lycopersicon esculentum) plants was low in soil treated with kudzu or velvetbean (30 and 35 g kg-1) and pine-bark (35 g kg-1). Dried powders of kudzu, velvetbean, or pine-bark added to soil can reduce disease by reducing pathogen inoculum.

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Section: Introductionmentioning

confidence: 99%

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

Blum

Rodrı́guez-Kábana

2004

Fitopatol. bras.

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“…27 Drying and rewetting of sclerotia of S. rolfsii, S. sclerotiorum, and S. minor greatly increased the exudation. 28 Lifshitz et al 25 demonstrated moist heating can cause increased exudation of water-soluble 14 C-labeled compounds from the sclerotia of S. rolfsii, making sclerotia more susceptible to microbial colonization. Arora et al 29 investigated the loss of endogenous C reserves from the chlamydospores of Fusarium oxysporum f. sp.…”

Section: Energy Stress Imposed On Fungal Propagulesmentioning

confidence: 99%

The Response of Fungal Propagules to Competitive Energy Stress in Soil

Hyakamuchi

Arora

1998

Annals NY Acad Sci

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154 ANNALS NEW YORK ACADEMY OF SCIENCES FIGURE 1. Arithmetic plot showing relationship of endogenous 14 C loss from labeled sclerotia of Sclerotium rolfsii to their ability to germinate in nutrient medium (potato-dextrose broth; PDB) or on salts solution containing no nutrients (y = 143.9-2.7x for PDB; y = 111.8-2.4x for the salts solution). Sclerotia of differing 14 C contents were obtained by incubating them in soil for various periods of time. Source: Ref. 10.

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“…)やGliocladium属菌 (Papavizas and Lewis, 1989 (Smith, 1972a(Smith, , 1972b and Goulty, 1984;Herr, 1995;Ichielvich-Auster et al, 1985)やFusarium属菌 (小川,1988;Postma and Rattink, 1992;手塚・牧野,1991;Yamaguchi et al, 1992) et al, 1987;Matsumoto and Tajimi, 1992 る (Punja and Grogen, 1983).…”

mentioning

confidence: 99%

Potential of weakly virulent protoclones of Sclerotium rolfsii as biocontrol agents for soybean stem rot caused by the pathogen.

Nakagawa

2003

Jpn. J. Phytopathol.

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Drying and wetting sclerotia promotes biological control of Sclerotium rolfsii Sacc

Cited by 28 publications

References 4 publications

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

The Response of Fungal Propagules to Competitive Energy Stress in Soil

Potential of weakly virulent protoclones of Sclerotium rolfsii as biocontrol agents for soybean stem rot caused by the pathogen.

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