Lutte biologique contre Polymyxa betae (Keskin) au moyen de Trichoderma sp. Résultats préliminaires in vivo

Camporota, P.; Bordei, Vasile; Richard-Molard, Marc

doi:10.1051/agro:19880307

Cited by 8 publications

(4 citation statements)

References 1 publication

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“…Kole (1959) recognized that the occurrence of powdery scab can depend on antagonistic relationships when he found that infected seed tubers planted in sterilized soil produced a crop of new tubers that were more severely affected by powdery scab than did similar tubers planted in non-sterilized soil. D' Ambra & Mutto (1986) and Camporota et al (1988) reported that Trichoderma harzianum parasitized cystosori of Polymyxa betae thereby reducing colonization by P. betae of roots of sugar beet seedlings. The possibility of using Trichoderma spp.…”

Section: Antagonistsmentioning

confidence: 99%

Powdery scab disease of potato — a review

Harrison¹,

Searle²,

Williams³

1997

Plant Pathology

128

139

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Section: Antagonistsmentioning

confidence: 99%

Powdery scab disease of potato — a review

Harrison¹,

Searle²,

Williams³

1997

Plant Pathology

128

139

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“…as a biocontrol agent against P. betae. In these studies, T. harzianum was shown to infect resting spores of P. betae in vitro (D'Ambra and Mutto 1986) and to reduce infection severity of sugar beet roots by P. betae in naturally infested soil under greenhouse conditions (D'Ambra et al 1987;Camporota et al 1988). Kastirr and Schmidt (1990) also showed an effective suppression of P. betae growth using different Trichoderma strains.…”

Section: Resultsmentioning

confidence: 99%

“…BNYVV is widely distributed in most sugar beet growing countries and is economically very important, because it causes severe losses in sugar yield and is difficult to control (Tamada 1999(Tamada , 2007Rush 2003). Among the control strategies to reduce the damage from rhizomania, genetic resistance is the most promising approach (Molard 1988), but there is increasing interest in the use of bacterial (Resca et al 2001;Aksoy and Kutluk Yilmaz 2008) and fungal (D'Ambra et al 1987;Camporota et al 1988;Jakubikova et al 2006) biological control agents for managing soilborne phytopathogens such as P. betae. This increased interest is partly a response to public concerns regarding the application of environmentally hazardous agrochemicals (Cook 1993).…”

Section: Introductionmentioning

confidence: 99%

Evaluation ofTrichodermaspp. from central and northern regions of Turkey for suppression ofPolymyxa betaeas a vector of rhizomania disease

Yilmaz

Tunalı

2010

Archives Of Phytopathology And Plant Protection

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In the current study, 18 Trichoderma spp. isolates were obtained from different provinces in central and northern regions of Turkey. The ability of nine selected isolates to suppress the colonisation of roots by P. betae and the multiplication of BNYVV in sugar beet roots under controlled conditions were tested. Roots of seedlings growing in the P. betae-BNYVV-infested soil were analysed by enzymelinked immunosorbent assay to test for the presence of BNYVV and checked microscopically for the density of cystosori of P. betae. The numbers of P. betae resting spores in cystosori for each treatment were counted using a light microscope. Except for isolates Tr-1 and Tr-5, the effect of selected Trichoderma isolates on suppressing multiplication of BNYVV varied between 4 and 53%. The total number of resting spores in the roots varied between 14.4 and 25.1 for the different Trichoderma spp. treatments. The lowest number of resting spores in clusters was recorded in T. harzianum Tr-8. In addition, the shapes of resting spores were not normal in the Tr-8 treatments. The cystosori from this treatment were also abnormally dark in colour and had deformed walls.

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“…Initial studies performed by D'Ambra & Mutto (1986) pointed out to the ability of Trichoderma to parasitize on Polymyxa betae cystosori. Camporota et al (1988) and Kastirr & Schmidt (1990) demonstrated an effective suppression of P. betae growth by different Trichoderma strains; however, no attempt was made to correlate the Polymyxa colonization of roots with the occurrence of BNYVV.…”

Section: Resultsmentioning

confidence: 99%

Selection of natural isolates of Trichoderma spp. for biocontrol of Polymyxa betae as a vector of virus causing rhizomania in sugar beet

et al. 2006

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Abstract:The soil fungus Polymyxa betae, Keskin, besides being a root parasite, plays a role of a vector in dissemination of Beet necrotic yellow vein virus (BNYVV) causing rhizomania in sugar beet. An alternative to its chemical control is the application of antagonistic microorganisms suppressing proliferation of the fungal vector. In the present work, 66 Trichoderma isolates have been obtained from sugar beet plantations from diverse locations in Slovakia. The ability of the selected isolates to grow at low temperature (10 • C) and to suppress the colonization of roots with P. betae and the multiplication of BNYVV in roots under glasshouse conditions were tested. The roots of sugar beet seedlings growing in the BNYVV-infested soil were analyzed by serological ELISA test using monoclonal and polyclonal antibodies for the presence of BNYVV and checked microscopically for the occurrence of cystosori of P. betae. The efficacy of the selected strains to suppress the proliferation of BNYVV varied on the average between 21 and 68%. On the basis of these tests, candidate strains for practical application in biocontrol of sugar beet rhizomania were selected.

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Lutte biologique contre Polymyxa betae (Keskin) au moyen de Trichoderma sp. Résultats préliminaires in vivo

Cited by 8 publications

References 1 publication

Powdery scab disease of potato — a review

Powdery scab disease of potato — a review

Evaluation ofTrichodermaspp. from central and northern regions of Turkey for suppression ofPolymyxa betaeas a vector of rhizomania disease

Selection of natural isolates of Trichoderma spp. for biocontrol of Polymyxa betae as a vector of virus causing rhizomania in sugar beet

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