<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The aim of the present study was to examine the abilities of twenty-four isolates belonging to ten different <italic>Trichoderma</italic> species (<italic>i.e</italic>., <italic>Trichoderma atroviride</italic>, <italic>Trichoderma citrinoviride</italic>, <italic>Trichoderma cremeum</italic>, <italic>Trichoderma hamatum</italic>, <italic>Trichoderma harzianum</italic>, <italic>Trichoderma koningiopsis</italic>, <italic>Trichoderma longibrachiatum</italic>, <italic>Trichoderma longipile</italic>, <italic>Trichoderma viride</italic> and <italic>Trichoderma viridescens</italic>) to inhibit the mycelial growth and mycotoxin production by five <italic>Fusarium</italic> strains (<italic>i.e</italic>., <italic>Fusarium avenaceum</italic>, <italic>Fusarium cerealis</italic>, <italic>Fusarium culmorum</italic>, <italic>Fusarium graminearum</italic> and <italic>Fusarium temperatum</italic>). Dual-culture bioassay on potato dextrose agar (PDA) medium clearly documented that all of the <italic>Trichoderma</italic> strains used in the study were capable of influencing the mycelial growth of at least four of all five <italic>Fusarium</italic> species on the fourth day after co-inoculation, when there was the first apparent physical contact between antagonist and pathogen. The qualitative evaluation of the interaction between the colonies after 14 days of co-culturing on PDA medium showed that ten <italic>Trichoderma</italic> strains completely overgrew and sporulated on the colony at least one of the tested <italic>Fusarium</italic> species. Whereas, the microscopic assay provided evidence that only <italic>T. atroviride</italic> AN240 and <italic>T. viride</italic> AN255 formed dense coils around the hyphae of the pathogen from where penetration took place. Of all screened <italic>Trichoderma</italic> strains, <italic>T. atroviride</italic> AN240 was also found to be the most efficient (69–100% toxin reduction) suppressors of mycotoxins (deoxynivalenol, 3-acetyl-deoxynivalenol, 15-acetyl-deoxynivalenol, nivalenol, zearalenone, beauvericin, moniliformin) production by all five <italic>Fusarium</italic> species on solid substrates. This research suggests that <italic>T. atroviride</italic> AN240 can be a promising candidate for the biological control of toxigenic <italic>Fusarium</italic> species.</p>
</abstract>

The aim of the present study was to examine the abilities of twenty-four isolates belonging to ten different Trichoderma species (i.e., Trichoderma atroviride, Trichoderma citrinoviride, Trichoderma cremeum, Trichoderma hamatum, Trichoderma harzianum, Trichoderma koningiopsis, Trichoderma longibrachiatum, Trichoderma longipile, Trichoderma viride and Trichoderma viridescens) to inhibit the mycelial growth and mycotoxin production by five Fusarium strains (i.e., Fusarium avenaceum, Fusarium cerealis, Fusarium culmorum, Fusarium graminearum and Fusarium temperatum). Dual-culture bioassay on potato dextrose agar (PDA) medium clearly documented that all of the Trichoderma strains used in the study were capable of influencing the mycelial growth of at least four of all five Fusarium species on the fourth day after co-inoculation, when there was the first apparent physical contact between antagonist and pathogen. The qualitative evaluation of the interaction between the colonies after 14 days of co-culturing on PDA medium showed that ten Trichoderma strains completely overgrew and sporulated on the colony at least one of the tested Fusarium species. Whereas, the microscopic assay provided evidence that only T. atroviride AN240 and T. viride AN255 formed dense coils around the hyphae of the pathogen from where penetration took place. Of all screened Trichoderma strains, T. atroviride AN240 was also found to be the most efficient (69–100% toxin reduction) suppressors of mycotoxins (deoxynivalenol, 3-acetyl-deoxynivalenol, 15-acetyl-deoxynivalenol, nivalenol, zearalenone, beauvericin, moniliformin) production by all five Fusarium species on solid substrates. This research suggests that T. atroviride AN240 can be a promising candidate for the biological control of toxigenic Fusarium species.

Suppressive Effect of <italic>Trichoderma</italic> spp. on toxigenic <italic>Fusarium</italic> species

Polish Journal of Microbiology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Suppressive Effect of  spp. on toxigenic  species

The aim of the present study was to examine the abilities of twenty-four isolates belonging to ten different Trichoderma species (i.e., Trichoderma atroviride,...

Suppressive Effect of Trichoderma spp. on toxigenic Fusarium species

Publié en ligne: 30 mars 2017

Pages: 85 - 100

Reçu: 25 févr. 2016

Accepté: 05 déc. 2016

DOI: https://doi.org/10.5604/pjm-2017-085

Mots clés
antagonism, dual culture bioassays, fungal interactions, microscopic observations, mycotoxins

© 2017 LIDIA BŁASZCZYK et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Suppressive Effect of Trichoderma spp. on toxigenic Fusarium species

Publié en ligne: 30 mars 2017

Pages: 85 - 100

Reçu: 25 févr. 2016

Accepté: 05 déc. 2016

DOI: https://doi.org/10.5604/pjm-2017-085

Mots clésantagonism, dual culture bioassays, fungal interactions, microscopic observations, mycotoxins

© 2017 LIDIA BŁASZCZYK et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
antagonism, dual culture bioassays, fungal interactions, microscopic observations, mycotoxins