Fluorescence, luminescence and germinating potential of spores in the family Trypethialacea (lichens, pyrenoycetes)

Mathey, Annick; Hoder, D.

doi:10.1127/nova.hedwigia/30/1979/79

Cited by 4 publications

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“…Ontogenetic studies of muriform-spored taxa revealed these spores initially form transverse septa with diamond-shaped lumina and subsequently develop muriform septation, thus suggesting a close evolutionary connection between species producing these different ascospore types (Sweetwood & al., 2012). Ascospores from several species appear to germinate readily in culture and produce mycelia (Johnson, 1940;Mathey & Hoder, 1978a;Mathey, 1979;Mathey & al., 1980;Crittenden & al., 1995;Sangvichien & al., 2011). Consequently, Trypetheliaceae may prove a useful model for studying lichen-forming fungi, due to the relative ease of symbiont isolation.…”

Section: Introductionmentioning

confidence: 99%

Elucidating phylogenetic relationships and genus‐level classification within the fungal family Trypetheliaceae (Ascomycota: Dothideomycetes)

Nelsen

Lücking

Aptroot³

et al. 2014

TAXON

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While the phylogenetic position of Trypetheliaceae has been the subject of recent molecular studies, the relationships within this family have been little studied. Here we construct a detailed genus‐level phylogeny of the family. We confirm previous morphology‐based findings suggesting that a substantial proportion of genera are not monophyletic, and that an overemphasis has been placed on certain character state combinations which do not strictly reflect phylogenetic relationships. Specifically, patterns of ascospore septation, ostiole orientation and type of ascomatal aggregation are evolutionarily labile, and of limited utility for the delimitation of genera as currently circumscribed. We show that species from a number of genera including Astrothelium, Bathelium, Cryptothelium, Laurera and Trypethelium together form a strongly supported group, referred to here as the “Astrothelium” clade. Species from Aptrootia, Architrypethelium, Campylothelium, Marcelaria (L. purpurina and L. cumingii groups), Pseudopyrenula and species from the Trypethelium eluteriae group fall outside of the “Astrothelium” clade and each form monophyletic groups. In contrast, species from Arthopyrenia, Mycomicrothelia and Polymeridium fall outside of the “Astrothelium” clade, and do not form monophyletic groups. The data presented here validate earlier morphology‐based findings suggesting generic delimitations are in need of revision, and provides a first step towards identifying the utility of individual characters and identifying which characters and character state combinations may be useful for future classification.

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Section: Introductionmentioning

confidence: 99%

Elucidating phylogenetic relationships and genus‐level classification within the fungal family Trypetheliaceae (Ascomycota: Dothideomycetes)

Nelsen

Lücking

Aptroot³

et al. 2014

TAXON

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1,2‐Naphthochinon‐Derivate aus Kulturen des Mycosymbionten der Flechte Trypethelium eluteriae (Trypetheliaceae)

1980

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Aus Kulturen des Mycosymbionten der tropisclien Rindenflechte Trypethelium eluteriae Sprengel wurden die antibiotisch aktiven 1,2-Naphthochinone Trypethelon (2), Trypethelon-methylether (3), 8-Methoxytrypethelon-methylether (5) und 4'-Hydroxy-8-methoxytrypethelon-methylether (6) isoliert. Es handelt sich um Derivate des ( +)-Dunnions (l), deren Substituentenanordnung mit einer Polyketidbiogenese des Chinonsystems im Einklang ist. 1,2-Naphthoquinone Derivatives from Cultures of the Mycosymbiont from the Lichen Trypethelium eluteriae (Trypetheliaceae)From cultures of the mycosymbiont of the tropical cortical lichen Trypethelium eluteriae Sprengel the antibiotically active 1,2-naphthoquinones trypethelone (2), trypethelone methyl ether (3), 8-methoxytrypethelone methyl ether (9, and 4'-hydroxy-8-methoxytrypethelone methyl ether (6)have been isolated. The substitution pattern of these new derivatives of (+)-dunnione (1) is in accord with a polyketide biogenesis of the quinone system. Trypethelium eluteriae Sprengel ist eine rindenbewohnende Flechte aus der Familie der Trypetheliaceae, die in den Tropen und Subtropen weitverbreitet ist. Ihre Sporen lassen sich leicht zur Keimung bringen, und nach Ubertragung auf geeignete Nahrmedien entwickelt sich innerhalb einiger Wochen eine dichte, rote Hyphenmasse, die den Farbstoff auch in das Nahrmedium ausscheidet'). Die Beobachtung, dal3 das Wachstum von Pilzinfektionen auf den Kulturen stark gehemmt wird, veranlaljte uns, die Farbstoffe naher zu untersuchen.

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Isolation and Culture of Lichen Photobionts and Mycobionts

Yoshimura

Yamamoto

Nakano

et al. 2002

Protocols in Lichenology

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Fluorescence, luminescence and germinating potential of spores in the family Trypethialacea (lichens, pyrenoycetes)

Cited by 4 publications

References 0 publications

Elucidating phylogenetic relationships and genus‐level classification within the fungal family Trypetheliaceae (Ascomycota: Dothideomycetes)

Elucidating phylogenetic relationships and genus‐level classification within the fungal family Trypetheliaceae (Ascomycota: Dothideomycetes)

1,2‐Naphthochinon‐Derivate aus Kulturen des Mycosymbionten der Flechte Trypethelium eluteriae (Trypetheliaceae)

Isolation and Culture of Lichen Photobionts and Mycobionts

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