Journal of Phytopathology
Journal of Phytopathology
5 years ago

Culturable microfungi inhibitory to Armillaria rhizomorph formation from Fagus sylvatica stump roots and soil

Hanna Kwaśna, Anna Szynkiewicz-Wronek
Culturable fungi from 28 fungal communities were isolated from soil, rhizosphere and thick (1 cm diam.) roots of living beech (Fagus sylvatica) trees and their stumps 1–3 years after felling. All fungi were morphotyped and identified morphologically. The frequency of fungi was 2–5× greater in stumps than in living trees. The diversity of fungi was similar in living trees and stumps. The majority of fungal species that occurred at greater frequency on/in roots of stumps reduced the growth of Armillaria ostoyae and to a smaller extent of A. gallica rhizomorphs in a soil substrate in vitro. It is suggested that the mycobiota of roots may constrain the colonization of F. sylvatica by A. ostoyae rather than by A. gallica. The significance of these findings in the epidemiology of Armillaria in beech forests is discussed.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/jph.12689

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