Results 71 to 80 of about 11,587 (226)

Cold comfort for change: Stream mats as biological indicators of ecosystem processes in the McMurdo Dry Valleys, Antarctica

open access: yesJournal of Phycology, EarlyView.
Abstract Glacier‐fed streams (GFSs) make ideal systems for studying climate‐related changes. Some of the best‐studied GFSs are found in the McMurdo Dry Valleys (MDVs) of Antarctica, one of the Earth's coldest and driest deserts. Despite their harsh and isolated nature, MDV GFSs represent an oasis of life in a landscape visually devoid of it, with ...
Tyler J. Kohler   +5 more
wiley   +1 more source

Emmanuelia , a new genus of lobarioid lichen-forming fungi ( Ascomycota : Peltigerales ): phylogeny and synopsis of accepted species

open access: yesPlant and Fungal Systematics, 2020
The former family Lobariaceae , now included in Peltigeraceae as subfamily Lobarioideae , has undergone substantial changes in its generic classification in recent years, based on phylogenetic inferences highlighting the polyphyly of the speciose ...
Antoine Simon   +10 more
doaj   +1 more source

Microbial Endolithic Community at Meteor Crater

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source

Foliicolous lichens and their lichenicolous fungi collected during the Smithsonian International Cryptogamic Expedition to Guyana 1996 [PDF]

open access: yes, 1998
A total of 233 foliicolous lichen species and 18 lichenicolous fungi are reported from Guyana as a result of the Smithsonian „International Cryptogamic Expedition to Guyana“ 1996.
Lücking, Robert
core  

Whole genome sequencing of historical specimens from the world's largest fungal collection yields high‐quality assemblies

open access: yesNew Phytologist, EarlyView.
Summary High‐throughput molecular studies of museum specimens (museomics) have great potential in biodiversity research, but fungal historical collections have scarcely been examined, leading to no comprehensive methodological assessments. Here we present a whole genome sequencing (WGS) project conducted at the Fungarium of the Royal Botanic Gardens ...
Torda Varga   +24 more
wiley   +1 more source

A preliminary phylogeographic study of Flavopunctelia and Punctelia inferred from rDNA ITS-sequences [PDF]

open access: yes, 2005
A preliminary phylogeny of the genera Flavopunctelia and Punctelia is presented. Genus and species delimitations have been investigated using ITS rDNA-sequencing of populations from different continents.
Adler, Monica Teresa   +5 more
core  

Disjunctive Distributions in the Lichen-Forming Fungi

open access: yesAnnals of the Missouri Botanical Garden, 1972
There is a widespread notion among botanists that the nonvascular cryptogams are easily disseminated, ubiquitous plants without well defined geographic ranges. Certainly for many groups, such as the fresh-water algae and the nonpathogenic or nonsubstrate-specific microfungi, this view seems to be justified, for few meaningful geographic-to-taxonomic ...
openaire   +2 more sources

Deciphering the biosynthetic pathways of lichen acids

open access: yesNew Phytologist, EarlyView.
Summary Depsides and depsidones are polyketide‐derived lichen acids widely distributed in lichen thalli, yet the biosynthetic gene clusters (BGCs) responsible for their production remain poorly understood. To address this gap, we investigated the diversity and evolutionary relationships of polyketide BGCs in lichens.
Wonyong Kim   +11 more
wiley   +1 more source

Effects of warming on plant uptake of post‐fire nitrogen in an arctic heath tundra

open access: yesNew Phytologist, EarlyView.
Summary Postfire nitrogen (N) becomes increasingly important with the rising frequency of fires in arctic tundra, and climate warming is expected to accelerate plant recovery following fire. However, how plants differ in utilizing this postfire N and how their postfire N uptake responds to warming remains unknown.
Wenyi Xu, Per Lennart Ambus
wiley   +1 more source

New records of lichens and allied fungi from the Leningrad Region, Russia. III [PDF]

open access: yes, 2012
Eight species of lichen-forming, eight lichenicolous and three non-lichenized fungi are reported from the Leningrad Region. Arthonia caerulescens, A. ligniaria, Hawksworthiana peltigericola, Micarea pycnidiophora and Trichonectria rubefaciens are new to ...
Czarnota, Pawel   +4 more
core   +1 more source

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