Phylogenetic placement within <i> Lecanoromycetes</i> of lichenicolous fungi associated with <i> Cladonia </i> and some other genera

During lichenological explorations of tropical montane forests in Kenya, a remarkable new lichenicolous fungus was repeatedly found growing on thalli of the epiphytic tripartite cyanolichen Crocodia cf. clathrata. Molecular phylogenetic analyses placed the fungus within Gomphillaceae (Ostropales, Lecanoromycetes), a family mainly of lichen-symbiotic species in the tropics. The anatomical features (unitunicate, non-amyloid asci and simple, septate paraphyses) as well as the hemiangiocarpic ascoma development confirm its taxonomic affinity. DNA sequence data showed the closest relationship was with Gyalidea fritzei, followed by Corticifraga peltigerae. A monotypic genus, Taitaia, is introduced to incorporate a single species, T. aurea. The new fungus is characterized by aggregated ascomata with yellow margins and salmon red discs developing from a single base.

show abstract

“…(Pino-Bodas et al . 2017). The phylogenetic concept of Gomphillaceae itself has remained obscure and unresolved (Lücking et al .…”

Section: Resultsmentioning

confidence: 99%

Taitaia, a novel lichenicolous fungus in tropical montane forests in Kenya (East Africa)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The type of Lettauia belongs to Cryptodiscus (Pino-Bodas et al . 2017); the phylogenetic positions of the other species of this genus, viz. L. hypotrachynae Etayo, L. santessonii Ihlen & Tønsberg and L. usneae Etayo are still unclear but they differ in having eventually superficial apothecia with a plane disc and a K/I+ blue hymenium (Ihlen & Tønsberg 1996; Etayo 2002, 2017).…”

Section: The Speciesmentioning

confidence: 99%

Contributions to the knowledge of lichenicolous fungi growing on baeomycetoid lichens andIcmadophila, with a key to the species

Zhurbenko

Ohmura

2020

The Lichenologist

View full text Add to dashboard Cite

Five species of lichenicolous fungi are described as new to science: Buelliella ohmurae Zhurb. & Diederich (on Icmadophila), with a non-granulose epihymenium, not or only slightly enlarged, pale brown apical cells of paraphysoids and 1-septate, smooth ascospores; Catillaria japonica Zhurb. & Hafellner (on Dibaeis and Pseudobaeomyces), with a medium to dark reddish brown epihymenium, exciple and hypothecium, rather frequently branched and anastomosed paraphyses with only slightly enlarged apical cells without a dark cap, and Catillaria-type asci; Cryptodiscus ihlenii Zhurb. (on Dibaeis), with persistently immersed ascomata, non-amyloid asci and hymenium, not or only slightly enlarged apical cells of paraphyses and narrowly obovate, 1-septate ascospores; Llimoniella chilensis Zhurb. (on Dibaeis and a sterile microsquamulose lichen), with a K+ green exciple and epihymenium and aseptate, broadly ellipsoid ascospores; and Stigmidium phyllobaeidis Zhurb., Etayo & Flakus (on apothecial discs of Phyllobaeis), with a hemiamyloid interascal gel, not previously reported in that genus, well-developed, 1‒2(‒4)-celled periphysoids, elongate asci and hyaline, 1-septate ascospores. An undescribed species of Arthonia (on Pseudobaeomyces) is briefly characterized. Sphaerellothecium coniodes is newly reported for Asia. A key to the 32 species of lichenicolous fungi and lichens known to occur on baeomycetoid lichens and Icmadophila is provided.

show abstract

“…(2011) S. verrucosa SS 00052 HQ446353 HQ446374 HQ446296 HQ446445 HQ446330 Boonyuen et al . (2011) Sclerococcum ahtii RP23 KY661630 KY661659 — — — Pino-Bodas et al . (2017) S. glaucomarioides RP275 KY661632 KY661660 — — — Pino-Bodas et al .…”

Section: Methodsmentioning

confidence: 99%

New insights into the systematics of Bactrodesmium and its allies and introducing new genera, species and morphological patterns in the Pleurotheciales and Savoryellales (Sordariomycetes)

Réblová

Hernández-Restrepo

Fournier³

et al. 2020

Studies in Mycology

View full text Add to dashboard Cite

The newly discovered systematic placement of Bactrodesmium abruptum , the lectotype species of the genus, prompted a re-evaluation of the traditionally broadly conceived genus Bactrodesmium . Fresh material, axenic cultures and new DNA sequence data of five gene regions of six species, i.e. B. abruptum , B. diversum, B. leptopus , B. obovatum , B. pallidum and B. spilomeum , were studied. Bactrodesmium is a strongly resolved lineage in the Savoryellales ( Sordariomycetes ), supported by Bayesian and Maximum Likelihood methods. The genus Bactrodesmium is emended and delimited to hyphomycetes characterised by sporodochial conidiomata, mononematous often fasciculate conidiophores, holoblastic conidiogenesis and acrogenous, solitary, dry, pigmented, transversely or rarely longitudinally septate conidia. The conidia are seceding rhexolytically, exhibiting multiple secession patterns. An identification key to 35 species accepted in Bactrodesmium is given, providing the most important diagnostic characters. Novel DNA sequence data of B. longisporum and B. stilboideum confirmed their placement in the Sclerococcales ( Eurotiomycetes ). For other Bactrodesmium , molecular data are available for B. cubense and B. gabretae , which position them in the Dothideomycetes and Leotiomycetes , respectively. All four species are excluded from Bactrodesmium and segregated into new genera, Aphanodesmium , Gamsomyces and Kaseifertia . Classification of 20 other species and varieties not recognised in the genus is discussed. Based on new collections of Dematiosporium aquaticum , the type species of Dematiosporium , the genus is emended to accommodate monodictys-like freshwater lignicolous fungi of the Savoryellales characterised by effuse colonies, holoblastic conidiogenous cells and dictyosporous, pigmented conidia with a pore in each cell. Study of additional new collections, cultures and DNA sequence data revealed several unknown species, which are proposed as taxonomic novelties in the Savoryellales and closely related Pleurotheciales . Ascotaiwania latericolla , Helicoascotaiwania lacustris and Pleurotheciella erumpens are described from terrestrial, lentic and lotic habitats from New Zealand and France, respectively. New combinations are proposed for Helicoascotaiwania...

show abstract

Phylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera

Cited by 42 publications

References 98 publications

Taitaia, a novel lichenicolous fungus in tropical montane forests in Kenya (East Africa)

Taitaia, a novel lichenicolous fungus in tropical montane forests in Kenya (East Africa)

Contributions to the knowledge of lichenicolous fungi growing on baeomycetoid lichens andIcmadophila, with a key to the species

New insights into the systematics of Bactrodesmium and its allies and introducing new genera, species and morphological patterns in the Pleurotheciales and Savoryellales (Sordariomycetes)

Contact Info

Product

Resources

About