A recent study identified a fungal isolate from the Antarctic leafy liverwort Cephaloziella varians as the ericoid mycorrhizal associate Rhizoscyphus ericae. However, nothing is known about the wider Antarctic distribution of R. ericae in C. varians, and inoculation experiments confirming the ability of the fungus to form coils in the liverwort are lacking. Using direct isolation and baiting with Vaccinium macrocarpon seedlings, fungi were isolated from C. varians sampled from eight sites across a 1875-km transect through sub- and maritime Antarctica. The ability of an isolate to form coils in aseptically grown C. varians was also tested. Fungi with 98-99% sequence identity to R. ericae internal transcribed spacer (ITS) region and partial large subunit ribosomal (r)DNA sequences were frequently isolated from C. varians at all sites sampled. The EF4/Fung5 primer set did not amplify small subunit rDNA from three of five R. ericae isolates, probably accounting for the reported absence of the fungus from C. varians in a previous study. Rhizoscyphus ericae was found to colonize aseptically-grown C. varians intracellularly, forming hyphal coils. This study shows that the association between R. ericae and C. varians is apparently widespread in Antarctica, and confirms that R. ericae is at least in part responsible for the formation of the coils observed in rhizoids of field-collected C. varians.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1469-8137.2007.02178.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring structural and molecular diversity of Ericaceae hair root mycobionts: a comparison between Northern Bohemia and Argentine Patagonia.
Mycorrhiza
November 2023
Laboratorio de Microbiología Aplicada y Biotecnología, Centro Regional Universitario Bariloche, IPATEC (Universidad Nacional del Comahue-CONICET), San Carlos de Bariloche, Río Negro, Argentina.
Core Ericaceae produce delicate hair roots with inflated rhizodermal cells that host plethora of fungal symbionts. These poorly known mycobionts include various endophytes, parasites, saprobes, and the ericoid mycorrhizal (ErM) fungi (ErMF) that form the ErM symbiosis crucial for the fitness of their hosts. Using microscopy and high-throughput sequencing, we investigated their structural and molecular diversity in 14 different host × site combinations in Northern Bohemia (Central Europe) and Argentine Patagonia (South America).
View Article and Find Full Text PDFFungi in hair roots of Vaccinium spp. (Ericaceae) growing on decomposing wood: colonization patterns, identity, and in vitro symbiotic potential.
Mycorrhiza
March 2023
Department of Taxonomy, Institute of Botany, Czech Academy of Sciences, Zámek 1, Průhonice, 252 43, Czechia.
Most of our knowledge on the ericoid mycorrhizal (ErM) symbiosis comes from temperate heathlands characterized by acidic peaty soils and many experiments with a few ascomycetous fungi. However, ericaceous plants thrive in many other ecosystems and in temperate coniferous forests, their seedlings often prosper on decomposing wood. While wood is typically exploited by basidiomycetous ectomycorrhizal (EcM) and saprobic fungi, the role of ErM fungi (ErMF) is much less clear.
View Article and Find Full Text PDFInvestigation of neomycin biodegradation conditions using ericoid mycorrhizal and white rot fungal species.
BMC Biotechnol
October 2022
Department of Medicinal Chemistry, Analytical Pharmaceutical Chemistry, Uppsala University, BMC Box 574, 751 23, Uppsala, Sweden.
Article Synopsis
- - The study focuses on the ability of saprotrophic fungi, particularly white rot fungi like Trametes versicolor and Rhizoscyphus ericae, to biodegrade the antibiotic neomycin, exploring both co-metabolic conditions with additional nutrients and conditions where neomycin is the sole nutrient.
- - Results indicate that both fungi can biodegrade neomycin, with Trametes versicolor achieving around 70% degradation under co-metabolic conditions in one week, and Rhizoscyphus ericae achieving approximately 60% degradation when using neomycin alone.
- - The findings suggest potential applications for these fungi in breaking down stubborn compounds in waste from recombinant protein production involving neomycin and antibiotic-resistant bacteria
Microbiome and related structural features of Earth's most archaic plant indicate early plant symbiosis attributes.
Sci Rep
April 2022
Department of Botany, University of Wisconsin-Madison, Madison, WI, USA.
Origin of earliest land plants from ancestral algae dramatically accelerated the evolution of Earth's terrestrial ecosystems, in which microbial symbioses have played key roles. Recent molecular diversification analyses identify the rare, geographically-limited moss Takakia as Earth's most archaic modern land plant. Despite occupying a phylogenetic position pivotal for understanding earliest plants, Takakia microbial associations are poorly known.
View Article and Find Full Text PDFHyaloscypha gabretae and Hyaloscypha gryndleri spp. nov. (Hyaloscyphaceae, Helotiales), two new mycobionts colonizing conifer, ericaceous and orchid roots.
Mycorrhiza
January 2022
Department of Taxonomy, Institute of Botany, Czech Academy of Sciences, Zámek 1, 25243, Průhonice, Czechia.
Historically, Hyaloscypha s. lat. (Hyaloscyphaceae, Helotiales) included various saprobes with small apothecia formed on decaying plant matter, usually wood, that were defined by chemical and (ultra)structural aspects.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!