The Hyphomycetous Anamorph of <i>Coniocybe Furfuracea</i>

Honegger, Rosmarie

doi:10.1017/s0024282985000354

Cited by 16 publications

(12 citation statements)

References 13 publications

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“…Pycnidia known with certainty only from axenic cultures of some Chaenotheca species (Tibell, 1993, 1997); simple, Asterophoma ‐like. Simple hyphomycetous anamorphs have been obtained in axenic cultures of several Chaenotheca species but have also been observed in the field (Honegger, 1985; Tibell, 1993, 1997). Pulvinic and vulpinic acid derivates occur as a pruina or rarely within the thallus, β‐orcinol depsides atranorin, baeomycesic and squamatic acid occur in the thallus of some species and pseudoplacodiolic acid occurs in one species (Tibell, 1999).…”

Section: Taxonomymentioning

confidence: 99%

Mazaedium evolution in the Ascomycota (Fungi) and the classification of mazaediate groups of formerly unclear relationship

et al. 2012

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Calicioid or mazaediate fungi constitute a heterogeneous assemblage of fungi sharing the presence of a mazaedium. These fungi were once treated as an order (Caliciales) of the Ascomycota but many are now known to be nested within the Arthoniomycetes, Eurotiomycetes, Lecanoromycetes and Leotiomycetes. In this study we employ multigene phylogenetic analyses of main mazaediate groups (based on nuclear 18S, 28S, 5.8S rDNA, mitochondrial 16S, and the protein coding RPB1 and Mcm7) of 116 taxa corresponding to most major groups of the inoperculate ascomycetes (“Leotiomyceta”) and a selection of Pezizomycetes, to trace the evolution of the mazaedium in the Pezizomycotina (the “Euascomycetes”). In particular, we studied the placement of three calicioid groups of uncertain position, Calycidiaceae, Coniocybaceae and Microcaliciaceae. Here, we show that the Calycidiaceae is closely related to the Sphaerophoraceae in the Lecanoromycetidae (Lecanoromycetes), as supported by overall morphology and the production of sphaerophorin. The Coniocybaceae constitute an early divergent line in the inoperculate ascomycetes and here we propose to recognize this group formally as the new class and order Coniocybomycetes, Coniocybales. The Microcaliciaceae is nested within the Ostropomycetidae (Lecanoromycetes). Both Coniocybaceae and Microcaliciaceae, although highly distinctive, lack morphological similarities to related main fungal groups. Ancestral state reconstruction suggests that the ancestor of all inoperculate ascomycetes and the ancestor of all main inoperculate ascomycete groups, with the exception of the Coniocybomycetes, was non‐mazediate, and thus confirms the large amount of parallel evolution and independent gains of the mazaedium in the history of the Ascomycota.

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Section: Taxonomymentioning

confidence: 99%

Mazaedium evolution in the Ascomycota (Fungi) and the classification of mazaediate groups of formerly unclear relationship

et al. 2012

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“…Conidia occur in field-collected material (Honegger, 1985), in cultures of the mycobiont of lichenized species (Tibell, 1993b) and in axenic cultures of nonlichenized species (Tibell, 1990(Tibell, , 199 1, 1993aTibell & Constantinescu, 199 1). I have suggested that these may function as asexual propagules (Tibell, 1990(Tibell, , 1993, which possibly propagate the species in a non-lichenized cycle in nature. The conidia are unlikely to function in long distance dispersal as they are generally thin-walled and non-pigmented and are thus ill-equipped to survive prolonged desiccation and intense UV radiation.…”

Section: Introductionmentioning

confidence: 99%

Distribution patterns and dispersal strategies of Caliciales

Tibell

1994

Botanical Journal of the Linnean Society

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In Caliciales both passive and active spore dispersal occurs . A review of the distribution of 162 species is given . Species with small spores have wider distribution than species with large spores.irrespective of dispersal strategy . In antitropical species there is only rarely a differentiation between Northern and Southern Hemisphere populations . It is concluded that in several small-spored genera long-distance dispersal has been instrumental in dispersing the species and range extensions have been much more frequent than in large-spored species for which vicariance explanations are more appropriate . Comparisons with bryophyte distributions show differences in dispersal strategies and distribution patterns .

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“…Hyphomycetous anamorphs, though possibly often overlooked, must still be considered rare among the lichen-forming fungi with known teleomorphs (see short reviews in Vobis & Hawksworth 1981, and the recent additions by Honegger 1985, Coppins & Purvis 1987, Ott 1987.…”

Section: Historical Introductionmentioning

confidence: 99%

Thalloconidia in the genus Umbilicaria

Hestmark

1990

Nordic Journal of Botany

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Hestmark. G . 1990. Thalloconidia in the genus Umhilicoria. -Nord. J . Bot. Y: 547-574. Copenhagen. ISSN 0107-055X.Hypothalline, hyphomycetous anamorphsthalloconidiafrom 18 taxa in the lichen genus Umhilicaria have been studied in detail with the aid of scanning and transmission electron microscopy. These asexual propagules are brown to dark brown, singleto multi-cellular (up to 2500 cclls), spherical to irregular, smooth to rugged; their walls two-or three-layered. The thalloconidia are produced and seceded directly from the cortex and/or the rhizinomorphs on the lower side of the thallus. Conidiomata and conidiophores are absent. The characteristics of the thalloconidia prove to be of substantial value for taxonomical work at the specific level. Thc anamorphs of U. antarcfica and U. esculenfa are described for the first time. Thirty-five taxa from the genus Umbilicaria and 10 from the genus Lasullza were screened for the occurrence of thalloconidia with negative result.

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The Hyphomycetous Anamorph of Coniocybe Furfuracea

Cited by 16 publications

References 13 publications

Mazaedium evolution in the Ascomycota (Fungi) and the classification of mazaediate groups of formerly unclear relationship

Mazaedium evolution in the Ascomycota (Fungi) and the classification of mazaediate groups of formerly unclear relationship

Distribution patterns and dispersal strategies of Caliciales

Thalloconidia in the genus Umbilicaria

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