18 Result(s)
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Asunción de los Ríos
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Open AccessMoss and Liverwort Covers Structure Soil Bacterial and Fungal Communities Differently in the Icelandic Highlands
Cryptogamic covers extend over vast polar tundra regions and their main components, e.g., bryophytes and lichens, are frequently the first visible colonizers of deglaciated areas. To understand their role in p...
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In memoriam of our colleagues
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The global contribution of soil mosses to ecosystem services
Soil mosses are among the most widely distributed organisms on land. Experiments and observations suggest that they contribute to terrestrial soil biodiversity and function, yet their ecological contribution t...
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Open AccessPublisher Correction: Soil contamination in nearby natural areas mirrors that in urban greenspaces worldwide
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Open AccessSoil contamination in nearby natural areas mirrors that in urban greenspaces worldwide
Soil contamination is one of the main threats to ecosystem health and sustainability. Yet little is known about the extent to which soil contaminants differ between urban greenspaces and natural ecosystems. He...
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Global hotspots for soil nature conservation
Soils are the foundation of all terrestrial ecosystems1. However, unlike for plants and animals, a global assessment of hotspots for soil nature conservation is still lacking2. This hampers our ability to establi...
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Open AccessNovel lichen-dominated hypolithic communities in the Namib Desert
The ventral surfaces of translucent rocks from hot desert pavements often harbor hypolithic microbial communities, which are mostly dominated by cyanobacteria. The Namib Desert fog belt supports extensive hypo...
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Himantormia lugubris, an Antarctic endemic on the edge of the lichen symbiosis
Himantormia lugubris is an Antarctic endemic with a distribution restricted to the northwest tip of Antarctic Peninsula, adjacent islands and South Georgia Island. In this region H. lugubris is an important compo...
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Amphitropical variation of the algal partners of Pseudephebe (Parmeliaceae, lichenized fungi)
Lichens are present in most terrestrial ecosystems on Earth and colonize extreme habitats, where vascular plants are unable to thrive, due to unique properties of the fungal-algal symbiosis. Here, we explored ...
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Microbial succession dynamics along glacier forefield chronosequences in Tierra del Fuego (Chile)
Following the retreat of a glacier, microbial colonization paves the way for future plant successions as nutrients are gradually introduced into the ecosystem. Characterizing the dynamics of this initial micro...
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Selectivity and detrimental effects of epiphytic Pseudanabaena on Microcystis colonies
The cyanobacterium Microcystis aggregates into colonies with a mucilaginous sheath that constitutes a special microhabitat for many microorganisms that associate to it. Here, we examine the notorious, yet scarcel...
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Hidden diversity of marine borderline lichens and a new order of fungi: Collemopsidiales (Dothideomyceta)
The fungal genus Collemopsidium comprises species that develop so-called borderline lichen symbioses with algae or cyanobacteria. Together with morphologically similar pyrenocarpous fungi it has been assigned to ...
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Open AccessEcosystem function decays by fungal outbreaks in Antarctic microbial mats
Antarctica harbours a remarkably diverse range of freshwater bodies and terrestrial ecosystems, where microbial mats are considered the most important systems in terms of biomass and metabolic capabilities. We...
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Microstructure and cyanobacterial composition of microbial mats from the High Arctic
Arctic lakes, ponds and streams contain benthic microbial mats that are dominated by cyanobacteria, and these communities often account for a large proportion of the total ecosystem biomass and productivity. T...
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The spatial structures of hypolithic communities in the Dry Valleys of East Antarctica
Hypolithic communities represent important reservoirs of microbial life in hyper-arid deserts. A number of studies on the diversity and ecology of these communities from different geographic areas have been re...
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Lichenicolous fungi of the genus Abrothallus (Dothideomycetes: Abrothallales ordo nov.) are sister to the predominantly aquatic Janhulales
This study provides new insights on the phylogenetic position of the lichenicolous fungal genus Abrothallus based on six molecular markers (nuSSU, nuLSU, mtSSU, RPB1, RPB2 and TEF-α). In a broad-scale analysis, w...
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Space Flight Effects on Lichen Ultrastructure and Physiology
Growth, survival and metabolic activity of microorganisms are influenced by numerous abiotic environmental factors. Microorganisms, especially when living in association, show an enormous resistance and great ...
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Preparative Techniques for Transmission Electron Microscopy and Confocal Laser Scanning Microscopy of Lichens
Ultrastructural study of lichen symbionts can provide valuable information about symbiotic performance complementary to that obtained using other techniques (Lallemant et al. 1986). Transmission Electron Microsco...
