Two interesting coprophilous fungi from Spain

Valldosera, M.; Guarro, Josep; Figueras, María José

doi:10.1016/s0953-7562(09)81020-4

Cited by 6 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…a rare as well as fastidious fungus was isolated in this study, where cultivation was reported to be difficult for at least one of the two species belonging to this genus. L. coprophilum showed poor growth when cultured under laboratory conditions as it was lacking interactions to certain bacteria coexisting in its natural habitat [33]. In contrast to this, there were no difficulties regarding isolation or cultivation using the FIND technology, thus proving the benefits of the device, i.e., isolation of rare fungal strains that are challenging to cultivate in the laboratory as crucial growth factors are missing in artificial medium.…”

Section: Discussionmentioning

confidence: 99%

Isolation of fungi using the diffusion chamber device FIND technology

Libor

Harms

Kehraus

et al. 2019

Beilstein J. Org. Chem.

View full text Add to dashboard Cite

Fungi are an important source of bioactive metabolites. The Fungal one-step IsolatioN Device (FIND) technology allows the isolation of rare fungi from terrestrial and marine samples. The FIND comprises a multi-chambered micro agar plate, where initially only one fungal part (e.g., hyphal cell, mycelial fragment or spore) is located in each chamber. After inoculation the device is placed back into the original natural environment of sample collection, to ensure favourable growth conditions. Experiments were carried out with terrestrial soil and marine sediment, as well as sea water samples to validate this method. This yielded axenic cultures of 12 different filamentous fungi, one of them being the marine-adapted fungal strain Heydenia cf. alpina. The latter produced two new terpenoids, which are the first secondary metabolites from this genus.

show abstract

Section: Discussionmentioning

confidence: 99%

Isolation of fungi using the diffusion chamber device FIND technology

Libor

Harms

Kehraus

et al. 2019

Beilstein J. Org. Chem.

View full text Add to dashboard Cite

show abstract

“…The genus Leucothecium was described by von Arx & Samson (1973) to accommodate ascomycetes with yellowish globose ascomata, hyaline peridium, bivalve-lenticular ascospores and asexual morphs with hyaline arthroconidia. Currently, the genus comprises two species, L. emdenii , the type species, and L. coprophilum , both traditionally included in Gymnoascaceae on the basis of the morphology of the asexual morph and ascospores ( von Arx & Samson 1973 , Valldosera et al 1991 ).…”

Section: Discussionmentioning

confidence: 99%

“…Apart from A. kalrae , which was traditionally associated with the sexual morph Eremomyces langeronii , other ascomycetes have been described with unnamed Arthrographi s morphs, i.e., Leucothecium coprophilum , L. emdenii and Faurelina indica ( von Arx & Samson 1973 , von Arx 1978 , von Arx et al 1981 , Malloch & Sigler 1988 , Valldosera et al 1991 ).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic circumscription of Arthrographis (Eremomycetaceae, Dothideomycetes)

Giraldo¹,

Gené²,

Sutton³

et al. 2014

persoonia

Self Cite

View full text Add to dashboard Cite

Numerous members of Ascomycota and Basidiomycota produce only poorly differentiated arthroconidial asexual morphs in culture. These arthroconidial fungi are grouped in genera where the asexual-sexual connections and their taxonomic circumscription are poorly known. In the present study we explored the phylogenetic relationships of two of these ascomycetous genera, Arthrographis and Arthropsis. Analysis of D1/D2 sequences of all species of both genera revealed that both are polyphyletic, with species being accommodated in different orders and classes. Because genetic variability was detected among reference strains and fresh isolates resembling the genus Arthrographis, we carried out a detailed phenotypic and phylogenetic analysis based on sequence data of the ITS region, actin and chitin synthase genes. Based on these results, four new species are recognised, namely Arthrographis chlamydospora, A. curvata, A. globosa and A. longispora. Arthrographis chlamydospora is distinguished by its cerebriform colonies, branched conidiophores, cuboid arthroconidia and terminal or intercalary globose to subglobose chlamydospores. Arthrographis curvata produced both sexual and asexual morphs, and is characterised by navicular ascospores and dimorphic conidia, namely cylindrical arthroconidia and curved, cashewnut-shaped conidia formed laterally on vegetative hyphae. Arthrographis globosa produced membranous colonies, but is mainly characterised by doliiform to globose arthroconidia. Arthrographis longispora also produces membranous colonies, but has poorly differentiated conidiophores and long arthroconidia. Morphological variants are described for A. kalrae and our results also revealed that Eremomyces langeronii and A. kalrae, traditionally considered the sexual and asexual morphs of the same species, are not conspecific.

show abstract