Phylogenetic relationships and the newly discovered sexual state of Talaromyces flavovirens, comb. nov

Typical Talaromyces ascomata were observed on dry Quercus suber leaf litter amongst the characteristic synnemata of Penicillium aureocephalum, and they appear to represent the sexual state of the latter species. The species is a synonym of the older Lasioderma flavovirens, and we propose the new com...

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Published in:Mycotaxon 2012-10, Vol.122 (1), p.399-411
Main Authors: Visagie, Cobus M., Llimona, Xavier, Vila, Jordi, Louis-Seize, Gerry, Seifert, Keith A.
Format: Article
Language:English
Subjects:
Anamorph-Teleomorph Connections
Ascocarps
Botanical taxonomy
DNA BARCODING
Fongs
Fungi
Hyphomycetes
Lasioderma
Micologia
Mycology
Taxonomia botànica
Trichocomaceae
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cited_by cdi_FETCH-LOGICAL-c462t-faff7ff790681b8a908d7ae08b89f9db6d83a98fc419b3a028a0eee8c72993db3
cites cdi_FETCH-LOGICAL-c462t-faff7ff790681b8a908d7ae08b89f9db6d83a98fc419b3a028a0eee8c72993db3
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container_title Mycotaxon
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creator Visagie, Cobus M.
Llimona, Xavier
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Seifert, Keith A.
description Typical Talaromyces ascomata were observed on dry Quercus suber leaf litter amongst the characteristic synnemata of Penicillium aureocephalum, and they appear to represent the sexual state of the latter species. The species is a synonym of the older Lasioderma flavovirens, and we propose the new combination Talaromyces flavovirens. Lectotype and epitype specimens are designated for this name. The defining characters of the asexual state include yellow, short-stalked, mycetozoan-like synnemata with an unusual, almost closed terminal head of penicillate conidiophores intermixed with sinuous hyphae, and dark green conidia. Ascomata could not be induced in culture, but PCR amplifications of mating-type genes indicate the species is heterothallic. In nature, ascocarp initials appear to be antheridia coiled around clavate ascogonia, similar to those of T. flavus, and the thick-walled, spiny ascospores are also similar to those of T. flavus. ITS barcodes and β-tubulin sequences place T. flavovirens in a clade with T. apiculatus, T. flavus, T. funiculosus, T. galapagensis, T. pinophilus, T. macrosporus, and seven other species.
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source IngentaConnect Journals
subjects Anamorph-Teleomorph Connections
Ascocarps
Botanical taxonomy
DNA BARCODING
Fongs
Fungi
Hyphomycetes
Lasioderma
Micologia
Mycology
Taxonomia botànica
Trichocomaceae
title Phylogenetic relationships and the newly discovered sexual state of Talaromyces flavovirens, comb. nov
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