Interaction of endophytic fungi of winter wheat seeds
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department of general and soil microbiology, D.K. Zabolotny Institute of Microbiology and Virology, Ukraine
Department of general and soil microbiology, Institute of Microbiology and Virology named after D.K. Zabolotny National Academy of Sciences of Ukraine, Ukraine
Department of plant protection, Sumy National Agrarian University, Ukraine
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
Tetiana Rozhkova   

department of general and soil microbiology, D.K. Zabolotny Institute of Microbiology and Virology, Akademika Zabolotnoho St, 154,, 03680, Kyiv, Ukraine
Submission date: 2023-02-01
Acceptance date: 2023-03-22
Online publication date: 2023-04-04
  • Endophytes have a different nature of interaction which does not affect the percentage of selection of representatives of the seed mycobiota.
  • Nigrospora oryzae caused the greatest impact on fungi, and Alternaria arborescens dominated in mycobiota of wheat seeds from the North-East of Ukraine
  • Known bioagents from wheat seeds had little efficacy against endophytic pathogens.
Seed endophytes are potential bioagents for plant protection and growth promoters. The question of the specifics of their isolation in cultural environments is not clear. The purpose of this study was to establish the nature of the interaction of endophytic fungi of wheat seeds with different levels of aggressiveness and presence in the mycobiota. Dual cultivation was carried out at PGA, comparing with single fungal cultivation. The mutual influence of fungi during joint cultivation was established. Alternaria arborescens, which dominated in the mycobiota of wheat seeds from northeastern Ukraine, suppressed the development of only Penicillium. Nigrospora oryzae, Bipolaris sorokiniana, and Phoma developed faster than A. arborescens. Fusarium poae, and F. sporotrichioides competed for agar medium with N. oryzae. Known bioagents from wheat seeds showed unexpectedly low results. Trichothecium roseum formed a rejection zone during co-cultivation with F. graminearum. Trichoderma sp. Max18 (resistant to fludioxonil) on the 7th day inhibited the development of Penicillium, F. graminearum, and A. arborescens by 55, 48 and 26%, respectively. N. oryzae developed faster than the mycoparasitic fungus, but the latter began to parasitize it only from the 13th day.
The authors have declared that no conflict of interests exist.