Mycoparasitic nature of Egyptian Trichoderma isolates and their impact on suppression Fusarium wilt of tomato

Background Plant disease administration is difficult due to the soil-borne nature of the phytopathogens. Biological control of plant disease is a safe mode to avoid the problems related to fungal diseases that affect crops productivity. Results Twenty-three Trichoderma isolates were isolated from so...

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Bibliographic Details
Published in:Egyptian journal of biological pest control 2021-07, Vol.31 (1), p.1-8, Article 103
Main Authors: Nofal, A. M., El-Rahman, Mohamed Abd, Abdelghany, T. M., Abd El-Mongy, Mahmoud
Format: Article
Language:English
Subjects:
Biological control
Biomedical and Life Sciences
Disease control
Filtrate
Fungal diseases
Fungi
Fusarium oxysporum
Inoculation
Life Sciences
Mycoparasitism
Phenols
Plant diseases
Scanning electron microscopy
Soils
Tomato
Tomatoes
Trichoderma
Trichoderma spp
Wilt
Zoology
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Summary:Background Plant disease administration is difficult due to the soil-borne nature of the phytopathogens. Biological control of plant disease is a safe mode to avoid the problems related to fungal diseases that affect crops productivity. Results Twenty-three Trichoderma isolates were isolated from soil, surrounding healthy tomato roots from different regions in the Egyptian Governorate of Menoufia. Using a dual culture method to test the efficiency of Trichoderma isolates, the most effective isolate identified as Trichoderma atrovirde with percentage inhibition against Fusarium oxysporum f. sp. lycopersici (92.11%) and scanning electron microscope examination documented the mycoparasitic nature of T. atrovirde to F. oxysporum. Treatments with 10% filtrate T. atrovirde improved the growth aspects of tomato plants than the control plants or infected only, as well as the increase in phenol content (15.09 ug. g -1 dry weight) and decreased disease incidence percentage (8%) than the plants infected only (60%). Conclusions This study clearly demonstrated that T. atrovirde had a significant inhibition against F. oxysporum . Greenhouse assays displayed the protective role of T. atrovirde inoculation directly against pathogen or indirectly related to the defense mechanism in the plant. So, this study recommends using T. atrovirde for biological control of wilt disease in tomato plants.
ISSN:2536-9342
1110-1768
2536-9342
DOI:10.1186/s41938-021-00450-1