Tremella cetrariellae(Tremellales, Basidiomycota, Fungi), a new lichenicolous fungus onCetrariella delisei

Millanes, Ana M.; Diederich, Paul; Westberg, Martin; Pippola, Emilia; Wedin, Mats

doi:10.1017/s0024282915000377

Cited by 15 publications

(17 citation statements)

References 27 publications

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“…Tremella species likewise have a yeast stage in their life cycle, but it has not been detected due to technical difficulties. Observations of basidiospores germinating by repetition or budding, presence of conidia in Tremella basidiomata (Diederich, 1996;Zamora et al, 2011;Millanes et al, 2015),…”

Section: Introductionmentioning

confidence: 99%

Tremella macrobasidiata and Tremella variae have abundant and widespread yeast stages in Lecanora lichens

Tuovinen

Millanes

Freire-Rallo

et al. 2021

Environmental Microbiology

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Tremellomycetes are one of the most species rich group of lichen-associated basidiomycete fungi. Yet very little is known about the biology of the lichen-associated species. We present new information on the life cycle of two such species and gives new and important insights into the specificity of their symbiotic interactions with Lecanora lichens. Our study adds to the growing body of recent findings documenting the occurrence of basidiomycete yeasts in lichen thalli, and highlights that current estimates of distribution, frequency of occurrence and species specificity of lichen-associated tremellalean fungi need to be revisited.

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Section: Introductionmentioning

confidence: 99%

Tremella macrobasidiata and Tremella variae have abundant and widespread yeast stages in Lecanora lichens

Tuovinen

Millanes

Freire-Rallo

et al. 2021

Environmental Microbiology

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“…One of many highlights regarding lichenicolous fungi was a paper on the new species Tremella cetrariellae (Millanes et al . 2015). The only two papers on fossil lichens, encompassing lobarioid and parmeloid lichens, were published during the first year of Peter's tenure (Peterson 2000; Poinar et al .…”

Section: Resultsmentioning

confidence: 99%

Peter D. Crittenden: meta-analysis of an exceptional two-decade tenure as senior editor of The Lichenologist, the flagship journal of lichenology

Lücking

2021

The Lichenologist

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Peter D. Crittenden served as senior editor of The Lichenologist, the flagship journal in the field of lichenological research, for a period of two decades, between 2000 and 2019. A review of the development of the journal and the publication output during this period is provided. The number of papers published during this period (1197) matches that of all papers published under the three previous senior editors, Peter W. James, David L. Hawksworth and Dennis H. Brown, during a much longer period of 42 years from 1958 to 1999. Peter oversaw important editorial changes to the layout and content of the journal: an increased size with a modern cover design, leaving behind the classic mint-coloured cover of more than 40 years; the addition of ‘thematic issues’ and encouragement of large monographs; implementation of substantial changes to the Code, such as effective electronic publication and obligate registration of new fungal names; and more recently a new policy to reject so-called ‘single naked species descriptions’. Shortly before Peter took over as senior editor, The Lichenologist had received its first impact factor, and Peter managed to continuously increase this measure from around 0.9 to lately up to over 1.5, higher than most other competing journals. The 1197 papers between 2000 and 2019 were published by a total of 1138 different authors, more than half of whom appeared just once as author, whereas a small number participated in numerous (up to 93) papers. There was a continuous increase in the mean number of authors per paper per year, from below 2.5 to around 3.5, the highest numbers ranging between 11 and 30; still, c. 75% of all papers between 2000 and 2019 were single-authored or had up to three authors. Based on affiliations at the time of publication, two thirds of author contributions came from Europe (66%), 13% from North America, 9% from Asia and 7% from Latin America. Likewise, almost half of the study areas were located in Europe and around 10% each in North America, South America and Asia. The countries with the highest number of studies included, in descending order, the United States, Spain, the United Kingdom, Norway and Sweden. North America and Europe were over-represented in terms of author contributions, whereas Africa, Latin America, Australia and Oceania were over-represented in terms of study areas. The 1197 papers analyzed encompassed a broad diversity of topics, classified into 32 categories. Taxonomy of lichenized fungi was the most frequent component, representing the focal point in almost half of all studies, followed by phylogeny and evolution, ecology, and the taxonomy of lichenicolous fungi. Around two thirds of the currently accepted genera of lichenized fungi were treated, with a significant correlation between known species richness and the number of papers in which a genus was treated, underlining the taxonomic representativity of papers published in the journal during the past two decades. Examples of genera that were treated more frequently than expected included commonly studied model organisms, such as Lobaria, and those frequently featured in ecological or other non-taxonomic studies, such as Xanthoria. Species-rich tropical genera, particularly in the Graphidaceae, were generally under-represented. Mean number of authors per paper per volume and total number of country origins of authors per volume were the best predictors of impact factor, followed by diversity of study countries per volume, mean number of study countries per paper per volume, mean number of topics per paper per volume, and proportion of studies with phylogenetic components per volume. Individual papers that contributed to high impact factors included broad-scale revisionary treatments and worldwide keys to species-rich taxa, substantial phylogenetic reclassifications of known taxonomic groups, papers dealing with novel methodological approaches of broad interest, and broad-scale studies related to environmental change and lichen biomonitoring.

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“…Host selection is an important factor that characterizes monophyletic groups in other mycoparasitic basidiomycetes (Millanes et al . 2015, 2016 a ) and this might also be the case in Crittendenia .…”

Section: Taxonomymentioning

confidence: 89%

Crittendenia gen. nov., a new lichenicolous lineage in the Agaricostilbomycetes (Pucciniomycotina), and a review of the biology, phylogeny and classification of lichenicolous heterobasidiomycetes

Millanes

Diederich

Westberg³

et al. 2021

The Lichenologist

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The lichenicolous ‘heterobasidiomycetes’ belong in the Tremellomycetes (Agaricomycotina) and in the Pucciniomycotina. In this paper, we provide an introduction and review of these lichenicolous taxa, focusing on recent studies and novelties of their classification, phylogeny and evolution. Lichen-inhabiting fungi in the Pucciniomycotina are represented by only a small number of species included in the genera Chionosphaera, Cyphobasidium and Lichenozyma. The phylogenetic position of the lichenicolous representatives of Chionosphaera has, however, never been investigated by molecular methods. Phylogenetic analyses using the nuclear SSU, ITS, and LSU ribosomal DNA markers reveal that the lichenicolous members of Chionosphaera form a monophyletic group in the Pucciniomycotina, distinct from Chionosphaera and outside the Chionosphaeraceae. The new genus Crittendenia is described to accommodate these lichen-inhabiting species. Crittendenia is characterized by minute synnemata-like basidiomata, the presence of clamp connections and aseptate tubular basidia from which 4–7 spores discharge passively, often in groups. Crittendenia, Cyphobasidium and Lichenozyma are the only lichenicolous lineages known so far in the Pucciniomycotina, whereas Chionosphaera does not include any lichenicolous taxa.

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Tremella cetrariellae(Tremellales, Basidiomycota, Fungi), a new lichenicolous fungus onCetrariella delisei

Cited by 15 publications

References 27 publications

Tremella macrobasidiata and Tremella variae have abundant and widespread yeast stages in Lecanora lichens

Tremella macrobasidiata and Tremella variae have abundant and widespread yeast stages in Lecanora lichens

Peter D. Crittenden: meta-analysis of an exceptional two-decade tenure as senior editor of The Lichenologist, the flagship journal of lichenology

Crittendenia gen. nov., a new lichenicolous lineage in the Agaricostilbomycetes (Pucciniomycotina), and a review of the biology, phylogeny and classification of lichenicolous heterobasidiomycetes

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