Topic
Dermateaceae
About: Dermateaceae is a research topic. Over the lifetime, 40 publications have been published within this topic receiving 622 citations.
Papers
TL;DR: The results indicate that fungal root endophytes of boreal trees are not randomly distributed, but instead form relatively distinct assemblages on different host tree species.
Abstract: Fungal root endophytes colonize root tissue concomitantly with mycorrhizal fungi, but their identities and host preferences are largely unknown. We cultured fungal endophytes from surface-sterilized Cenococcum geophilum ectomycorrhizae of Betula papyrifera, Abies balsamea, and Picea glauca from two boreal sites in eastern Canada. Isolates were initially grouped on the basis of cultural morphology and then identified by internal transcribed spacer ribosomal DNA sequencing or by PCR restriction fragment length polymorphism. Phylogenetic analysis of the sequence data revealed 31 distinct phylotypes among the isolates, comprising mainly members of the ascomycete families Helotiaceae, Dermateaceae, Myxotrichaceae, and Hyaloscyphaceae, although other fungi were also isolated. Multivariate analyses indicate a clear separation among the endophyte communities colonizing each host tree species. Some phylotypes were evenly distributed across the roots of all three host species, some were found preferentially on particular hosts, and others were isolated from single hosts only. The results indicate that fungal root endophytes of boreal trees are not randomly distributed, but instead form relatively distinct assemblages on different host tree species.
87 citations
TL;DR: A polyphasic approach incorporating morphology, ecology, and molecular data of the partial large subunit of nrDNA (LSU), the internal transcribed spacer region with intervening 5.8S nr DNA (ITS), partial β-tubulin (tub2), and translation elongation factor 1-alpha (tef1) gene sequences to resolve Coleophoma's taxonomy and phylogeny was found to be polyphyletic.
49 citations
TL;DR: The prior decomposition of litter by Coccomyces sp.
47 citations
TL;DR: The monotypic genus Calycellinopsis was known previously only from the type locality in tropical Yunnan, China and treated as a member of the Dermateaceae based on morphological features but when the second collection from Hunan in the subtropical region was found, a sequence analysis of 18S nrDNA showed that the fungus is closely related to fungi in the Helotiaceae
Abstract: The monotypic genus Calycellinopsis was known previously only from the type locality in tropical Yunnan, China and treated as a member of the Dermateaceae based on morphological features. When the second collection from Hunan in the subtropical region was found, a sequence analysis of 18S nrDNA showed that the fungus is closely related to fungi in the Helotiaceae and only distantly related to members of the Dermateaceae. A transfer of Calycellinopsis from Dermateaceae to Helotiaceae is required.
41 citations
TL;DR: Phylogenetic analysis based on LSU sequence data indicated that this taxon clustered in Cryptosporiopsis (teleomorph: Neofabraea, Dermateaceae) and constituted a distinct clade, thus suggesting it might belong to an undescribed species.
Abstract: Defoliation, dieback and mortality of Satsuma mandarin (Citrus unshiu), as well as kumquat (Fortunella margarita), in Chenggu County, Shaanxi Province, China was first noticed in 2006 and caused substantial economic losses to citrus production. The incidence of leaves infected approached 100% in some badly infected orchards. The disease prevailed only in late winter and early spring, where early symptoms were rounded and target-like spots on leaves. The disease was named target spot. Black conidiomata were observed on the upper surface of the leaves. A Cryptosporiopsis species was consistently recovered from the infected leaves, shoots, and branches. Koch's postulates were fulfilled by inoculating the conidial suspension of Cryptosporiopsis sp. onto the leaves of Satsuma mandarin. Phylogenetic analysis based on LSU sequence data indicated that this taxon clustered in Cryptosporiopsis (teleomorph: Neofabraea, Dermateaceae). Phylogenetic analysis based on ITS, SSU, and TUB indicated that the isolates of Cryptosporiopsis sp. constituted a distinct clade. Further study also demonstrated that this taxon was morphologically distinct from other species of Cryptosporiopsis, thus suggesting it might belong to an undescribed species. The name Cryptosporiopsis citricarpa sp. nov. is given to accommodate the fungal pathogen in this study.
22 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 1 |
| 2019 | 2 |
| 2018 | 1 |
| 2016 | 4 |
| 2015 | 1 |