Ectomycorrhizas and molecular phylogeny of the hypogeous russuloid fungus Arcangeliella borziana

Peter, Martina; Büchler, Urs; Ayer, François; Egli, Simon

doi:10.1016/s0953-7562(08)61994-2

Cited by 16 publications

(4 citation statements)

References 30 publications

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“…Moreover, our results indicate that hypogeous members of the Pezizales are EcM‐forming and tend to occur in lineages with epigeous EcM‐forming taxa or taxa with unresolved biotrophic status. Based on these results, and because evidence suggests that hypogeous or semihypogeous fruiting fungi are derived from epigeous fruiting ancestors (Trappe, 1979; Thiers, 1984; O'Donnell et al ., 1997; Peter et al ., 2000; Hansen et al ., 2001; Peintner et al ., 2001), we hypothesize that the EcM lifestyle is a precondition for the switch to hypogeous fruiting. Within the EcM lineages, selection for a hypogeous habit is probably driven and maintained, in part, by the advantageous deposition of spores into the rooting zone (Miller et al ., 1994).…”

Section: Discussionmentioning

confidence: 99%

Molecular and morphological diversity of pezizalean ectomycorrhiza

et al. 2006

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Summary• A growing body of molecular research is discovering a high diversity of pezizalean ectomycorrhiza (EcM), yet most remain unidentified at the genus or species level. This study describes EcM-forming taxa within the Pezizales.• EcM-forming Pezizales were revealed by morphotyping and sequencing of EcM root tips from forests in Estonia and Denmark. The taxa on EcM root tips were identified using phylogenetic analyses of large-subunit rDNA sequences derived from sporocarps of 301 pezizalean species, and comparisons with internal transcribed spacer rDNA sequences.• Thirty-three species are suggested as EcM symbionts, representing all three major clades of Pezizales, the genera Genea , Geopora , Humaria , Tarzetta , Trichophaea , Wilcoxina , Helvella , Hydnotrya , Tuber , Pachyphloeus , Peziza and Sarcosphaera , and two Pezizaceae anamorphs. EcM of Pezizales species are easily distinguished by their anatomy, particularly thick cell walls and stout hyphae.• This study demonstrates that Pezizales species constitute a considerable proportion of the mycobionts in EcM fungal communities in mature boreal deciduous and coniferous forests, in several soil types. Fruit-body sequences and EcM descriptions will facilitate identification of pezizalean EcM in future studies.

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Section: Discussionmentioning

confidence: 99%

Molecular and morphological diversity of pezizalean ectomycorrhiza

et al. 2006

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“…Genetic studies by Peter et al (2001) conducted on specimens collected in the Swiss Alps (F. Ayer 96-05-3344 WSL) show that this species is significantly related to members of L. subg. Russularia .…”

Section: Taxonomymentioning

confidence: 99%

“…Russularia . Nuytinck et al (2003) compared sequences of Z. stephensii with those of A. borziana obtained by Peter et al (2001), and found both species to be genetically distinct, recombining them into Lactarius . Neither Nuytinck et al (2003) nor Vidal (2004a) were able to observe any significant macro- or microscopical differences between the type collection of A. volemoides and A. borziana , and both taxa were therefore considered to be synonyms by these authors.…”

Section: Taxonomymentioning

confidence: 99%

A phylogenetic and taxonomic revision of sequestrate Russulaceae in Mediterranean and temperate Europe

Vidal¹,

Alvarado

Loizides

et al. 2019

persoonia

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A comprehensive morphological and genetic study of type material and new collections of sequestrate Russulales species formerly belonging to the genera Arcangeliella, Elasmomyces, Gymnomyces, Hydnangium, Hymenogaster, Macowanites, Martellia, Secotium and Zelleromyces is here undertaken, for the purpose of providing a complete taxonomical revision of sequestrate Russulaceae species in the Mediterranean and temperate regions of Europe. As a result, seven distinct taxa in the genus Lactarius and 18 in the genus Russula are identified. Six of them are new species: L. populicola, L. subgiennensis, R. bavarica, R. candidissima, R. hobartiae and R. mediterraneensis, and seven represent new combinations: L. josserandii (≡ Zelleromyces josserandii), L. soehneri (≡ Hydnangium soehneri), R. candida (≡ Hydnangium candidum), R. cerea (≡ Hydnangium cereum), R. messapica var. messapicoides (≡ Macowanites messapicoides), R. meridionalis (≡ Zelleromyces meridionalis) and R. neuhoffii (≡ Hydnangium neuhoffii). Twenty-two of the 25 taxa are illustrated, while descriptions, microscopy images, as well as extensive information on the ecology, chorology and phylogeny for all taxa are provided. A key is further included to facilitate their identification.

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“…To date, sequestrate forms are not reported from the genus Lactifluus (Verbeken et al 2014). As the sequestrate life habit evolved several times independently within various subgenera of Lactarius, this character is the result of convergent evolution (Miller et al 2001;Peter et al 2001;Desjardin 2003;Nuytinck et al 2003;Eberhardt and Verbeken 2004;Verbeken et al 2014). The newly described Lactarius megalopterus supports this presumption.…”

Section: Taxonomy and Morphologymentioning

confidence: 99%

Lactarius megalopterus, a new angiocarpous species from a tropical rainforest in Central Africa, shows adaptations to endozoochorous spore dispersal

2016

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A new sequestrate Lactarius species was found in a humid evergreen tropical rainforest dominated by Fabaceae of the subfamily Caesalpinioideae in Cameroon, Central Africa. It is described here as new to science and is named Lactarius megalopterus, referring to its spore ornamentation of extraordinarily high wings. Anatomical characters and molecular systematic analyses confirm its relationship to Lactarius subgenus Plinthogali. Phylogenetic analyses based on two nuclear DNA regions revealed its close relationship to Lactarius angiocarpus, which is also an angiocarpous species from Zambia in Africa. Molecular studies have shown that tuberlike, sequestrate sporocarps evolved independently in several lineages of Basidiomycota. The findings of sequestrate fungi in tropical rainforests raise questions regarding the evolutionary benefit of enclosing the spore-producing hymenium. The enclosure of spore-producing tissue has often been associated with the protection of the delicate hymenium against desiccation in arid habitats or against frost in cold habitats. However, these cannot be the selective factors in warm and humid areas like the tropics. This controversy is exemplarily studied and discussed in the family of Russulaceae, especially in the genus Lactarius. Characters shown by the angiocarpous sporocarp of the new Lactarius, such as thick-walled statismospores, an aromatic smell and mild taste, can be interpreted as adaptations to endozoochorous spore dispersal by mammals. Therefore, here we prefer the alternative hypothesis that sequestrate sporocarps are the result of adaptation to endozoochorous spore dispersal.

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Ectomycorrhizas and molecular phylogeny of the hypogeous russuloid fungus Arcangeliella borziana

Cited by 16 publications

References 30 publications

Molecular and morphological diversity of pezizalean ectomycorrhiza

Molecular and morphological diversity of pezizalean ectomycorrhiza

A phylogenetic and taxonomic revision of sequestrate Russulaceae in Mediterranean and temperate Europe

Lactarius megalopterus, a new angiocarpous species from a tropical rainforest in Central Africa, shows adaptations to endozoochorous spore dispersal

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