Increased soil suppressiveness to Fusarium wilt of flax after addition of municipal solid waste compost

Serra‐Wittling, Claire; Houot, Sabine; Alabouvette, Claude

doi:10.1016/0038-0717(96)00126-5

Cited by 101 publications

(36 citation statements)

References 24 publications

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“…To date, compost amendment has been successfully used to increase soil suppressiveness to diseases in agricultural crops, including nematode diseases (Erhart et al 1999;Lumsden et al 1983;Oyarzun et al 1998;Serra-Wittling et al 1996;Steinberg et al 2004;Widmer et al 2002), as well as disease suppression in horticultural crops (Cotxarrera et al 2002;Hoitink and Boehm 1999). The mechanisms involved, however, are not fully understood yet and subject of ongoing studies.…”

Section: Organic Amendmentsmentioning

confidence: 99%

The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms

et al. 2008

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The rhizosphere is a hot spot of microbial interactions as exudates released by plant roots are a main food source for microorganisms and a driving force of their population density and activities. The rhizosphere harbors many organisms that have a neutral effect on the plant, but also attracts organisms that exert deleterious or beneficial effects on the plant. Microorganisms that adversely affect plant growth and health are the pathogenic fungi, oomycetes, bacteria and nematodes. Most of the soilborne pathogens are adapted to grow and survive in the bulk soil, but the rhizosphere is the playground and infection court where the pathogen establishes a parasitic relationship with the plant. The rhizosphere is also a battlefield where the complex rhizosphere community, both microflora and microfauna, interact with pathogens and influence the outcome of pathogen infection. A wide range of microorganisms are beneficial to the plant and include nitrogen-fixing bacteria, endo-and ectomycorrhizal fungi, and plant growth-promoting bacteria and fungi. This review focuses on the population dynamics and activity of soilborne pathogens and beneficial microorganisms. Specific attention is given to mechanisms involved in the tripartite interactions between beneficial microorganisms, pathogens and the plant. We also discuss how agricultural practices affect pathogen and antagonist populations and how these practices can be adopted to promote plant growth and health.

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Section: Organic Amendmentsmentioning

confidence: 99%

The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms

et al. 2008

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“…eases: Fusarium wilt of flux 19) , damping off caused by Rhizoctonia spp. 2) , and Pythium root rot of Poinsettia incited by P. ultimum 1) .…”

Section: Discussionmentioning

confidence: 99%

Inhibition of Bacterial Wilt of Tomato Caused by Ralstonia solanacearum by Sugars and Amino Acids

2007

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Different sugars and amino acids were added to a conducive soil to study their effects on bacterial wilt of tomato caused by Ralstonia solanacearum YU1Rif43. The compounds were selected mainly based on the utilization ability of the pathogen and added to the soil at application rates of 0.5 to 5 mg g −1 , together with an inoculation of the pathogen. While tomato seeds germinated and grew healthy in soils amended with carbohydrates at a rate of 5 mg g −1 , most of the seeds failed to germinate in soils to which serine, glycine and alanine were applied at the same rate. At 2.5 mg g −1 , the inhibitory effect on tomato germination disappeared except for methionine. Most of the compounds decreased the incidence of wilt during 30 days of cultivation, while sucrose, fructose, threonine, acetate, and glycerol had no apparent suppressive effect. The compounds that showed the most suppressive effect were glucose, proline, glutamine, serine, arginine, and lysine. The pathogen utilized glucose, proline, and glutamine, but not serine, arginine and lysine. Certain compounds stimulated microbial activity and decreased the survival of the pathogen, and thereby suppressed bacterial wilt of tomato.

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“…Some growth media formulated with composts are able to suppress Fusarium wilt with respect to peat (Chef et al, 1983;Orlikowski, 1983;Trillas-Gay et al, 1986;Garibaldi, 1988;Pera and Calvet, 1989;Hoitink et al, 1991;Serra-Wittling et al, 1996;Szczech, 1999;Cotxarrera et al, 2002;Reuveni et al, 2002;Trillas et al, 2002). The nature of soils and composts with suppressiveness to Fusarium wilt is the result of complex interactions between the abiotic characteristics of the media and microbial populations (Hoitink et al, 1993;Alabouvette et al, 1996;Weller et al, 2002;Borrero et al, 2004b). Several biocontrol agents have been identified in these soils and composts (Hoitink et al, 1993;Weller et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Relation Between Suppressiveness to Tomato Fusarium Wilt and Microbial Populations in Different Growth Media

Marquina¹,

Guerrero²,

Borrero³

et al. 2005

Acta Hortic.

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Tomato Fusarium wilt suppressiveness of three growth media, with respect to peat and vermiculite, and the relationship between microbial populations of growth media in the severity of this pathogen were examined. The growth media evaluated were olive oil husk + cotton gin trash composted and mixed with rice husk (OC+R), spent mushroom composted and mixed with peat (SM+P) and coir fibre. To determine the role of the microflora in the suppression, the two composts were also heated to 60ºC for 6 days. Three bioassays were carried out with these infested growth media and controls not infested. Disease severity was recorded during 25 days after tomato seedling transplantation. In these seven growth media the density of culturable groups of microorganisms was determined by dilution plating on semi-selective media before the bioassays. The two composts showed suppressiveness to Fusarium wilt with respect to vermiculite and peat while coir fibre was conductive. Furthermore, in OC+R its suppressiveness is due more to the growth media's non heat-labile properties than in SM+P. Significant negative correlations were found between severity and Bacillus spp., cellulolytic actinomycetes and bacteria, oligotrophic actinomycetes and bacteria, copiotrophic bacteria, total actinomicetes (cellulolytic + oligotrophic + copiotrophic) and total bacteria (cellulolytic + oligotrophic + copiotrophic) populations in these growth media. Bacillus spp. are known antagonists, so they may account for the suppressiveness in our composts. Cellulolytic and oligotrophic actinomycete populations were associated with Fusarium wilt suppressiveness for another growth media. High microbial activity has been reported as a Fusarium wilt suppressiveness factor. Copiotrophic, celullolitic and oligotrophic bacteria contribute to this microbial activity.

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Increased soil suppressiveness to Fusarium wilt of flax after addition of municipal solid waste compost

Cited by 101 publications

References 24 publications

The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms

The rhizosphere: a playground and battlefield for soilborne pathogens and beneficial microorganisms

Inhibition of Bacterial Wilt of Tomato Caused by Ralstonia solanacearum by Sugars and Amino Acids

Relation Between Suppressiveness to Tomato Fusarium Wilt and Microbial Populations in Different Growth Media

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