Publications by authors named "Gitta Jutta Langer"

Article Synopsis
  • Researchers examined filamentous fungi linked to disease in non-native giant sequoia trees in Northwest Germany between 2018 and 2023.
  • A total of 81 species of Dikaria fungi were identified from the trees, with some morphotypes verified through genetic sequencing.
  • Nine of these fungal species are newly reported in Germany, highlighting potential risks to giant sequoias and other trees from these imported fungi.
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From the ascomycete Aspergillus cibarius strain NW-FVA 2590, which was originally isolated from a root, associated with stem collar necrosis of Fraxinus excelsior L., a novel virus was isolated and characterized. Its genome is encoded on three monocistronic dsRNA segments ranging from 3683 bp (dsRNA 1) over 3093 (dsRNA 2) to 2902 bp (dsRNA 3), which are packed in isometric particles of around 35 nm.

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Increased drought combined with emerging pathogens poses an increased threat to forest health. This is attributable to the unpredictable behaviour of forest pathosystems, which can favour fungal pathogens over the host under persistent drought stress conditions. (≡ ) is one of the most severe pathogens in Scots pine () causing Diplodia tip blight (conifer blight) under certain environmental conditions.

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A novel dsRNA mycovirus was found in Fusarium solani (F. solani) strain NW-FVA 2572. The fungus was originally isolated from a root, associated with stem collar necrosis of Fraxinus excelsior L.

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Filamentous fungi associated with woody tissues of European Beech () and isolated from diseased trees and healthy trees were examined in relation to their impact on tree health. To this end, classical culture-based isolation methods, in planta inoculations and fungal identification using ITS-barcode and morphological characters were used. Stem endophytes of healthy beech saplings collected in German forests were isolated to determine endophyte communities in woody stem tissues.

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The opportunistic pathogen (≡) is one of the most severe pathogens in Scots pine, causing the disease Diplodia tip blight on coniferous tree species. Disease symptoms become visible when trees are weakened by stress. has an endophytic mode in its lifecycle, making it difficult to detect before disease outbreaks.

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With the change to one scientific name for fungal taxa, generic names typified by species with sexual or asexual morph types are being evaluated to determine which names represent the same genus and thus compete for use. In this paper generic names of the Agaricomycotina (Basidiomycota) were evaluated to determine synonymy based on their type. Forty-seven sets of sexually and asexually typified names were determined to be congeneric and recommendations are made for which generic name to use.

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