Protective and Curative Effects of Trichoderma asperelloides Ta41 on Tomato Root Rot Caused by Rhizoctonia solani Rs33
نویسندگان
چکیده
Two molecularly identified tomato isolates, Trichoderma asperelloides Ta41 and Rhizoctonia solani Rs33, were characterized antagonistically evaluated. The dual culture technique showed that had a high antagonistic activity of 83.33%, while light microscope bioassay demonstrated the isolate over-parasitized pathogen completely. Under greenhouse conditions, application was able to promote plant growth significant increase in height, root length, shoot fresh, dry, dry weight. It also improved chlorophyll content total phenol significantly, both protective curative treatments. treatment assay exhibited lowest disease index (16.00%), 33.33%. At 20 days post-inoculation, increases relative expression levels four defense-related genes (PR-1, PR-2, PR-3, CHS) observed all Ta41-treated plants when compared with non-treated plants. Interestingly, treated alone highest expression, transcriptional CHS, PR-1, PR-2 were, control, 3.91-, 3.13-, 2.94-, 2.69-fold higher, respectively, 3.50-, 3.63-, 2.39-, 2.27-fold respectively. Consequently, ability growth, suppress Rs33 induce systemic resistance supports incorporation as potential bioagent for controlling rot increasing productivity crops, including tomatoes.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2021
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy11061162