The Determination of Their Efficiency Against Fusarium Root and Crown Rot Diseases of Some Antagonistic Trichoderma and Endophytic Acremonium Isolates

Berna Tunalı, Cansu Tosun, Büşra Müge Maldar, Gonca Meyva, Bayram Kansu

Abstract


The use of antagonist microorganisms against pathogenic organisms in organic agricultural systems was promising for biological control approach. The aim of this study was to determination of the potential biological control of some fungal isolates which characterized as endophytic and antagonistic against soil borne Fusarium culmorum (FC) and F. oxysporum f.sp. radicis lycopersici (FORL) pathogens. For this, seven isolates of endophytic Acremonium spp. that isolated from healthy wheat plants and eight isolates of antagonist Trichoderma spp., isolated from soil of organic vegetable areas, were performed as biological control agents (BCA). The agar media with hypha and mycelia of the BCAs and spore suspensions (106 spores/ml) of FC and FORL were treated for inoculation of wheat seeds and tomato seedlings. The harvested plants were statistically analyzed by some parameters (severity of crown rot disease (%DS and scale), plant lengths (cm) etc.). In conclusion, the Acremonium isolates (47.5%) were lower means of disease severity than Trichoderma isolates (74.6%) for FC and FORL assessments in wheat experiment. In tomato, the averages of disease severity between Acremonium and Trichoderma were similar while their means were lower than positive control (The Scale of DS=0.67<0.68; Control=3). Together with other parameters, it is thought that endophytic isolates could have been effective in biological control against important soil borne pathogens.

Keywords


Endophyte; Antagonist; Fusarium culmorum; F. oxysporum f.sp. radicis lycopersici; Acremonium

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DOI: https://doi.org/10.24925/turjaf.v6i3.266-272.1613

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ISSN: 2148-127X

Turkish JAF Sci.Tech.

Turkish Journal of Agriculture - Food Science and Technology (TURJAF) is indexed by the following national and international scientific indexing services: