2012
DOI: 10.1111/j.1462-2920.2012.02771.x
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Molecular and morphological diversity of fungi and the associated functions in three European nearby lakes

Abstract: This study presents an original rDNA PCR and microscopic survey of pelagic freshwater fungal communities, and was designed to unveil the diversity of true Fungi (i.e. the kingdom Eumycota) in three contrasting lake ecosystems (Lakes Pavin, Aydat and Vassivière) located in the French Massif Central. Three clone libraries were constructed from samples collected in the euphotic layers of the lakes during spring 2007. Phylogenetic analysis of the combined data from the three lakes clustered our sequences into thee… Show more

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Cited by 47 publications
(71 citation statements)
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References 100 publications
(213 reference statements)
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“…Mesochytrium penetrans is the only described species of a diverse group of uncultured fungi from soil, freshwater and hydrobiont gut samples collected from temperate zone of Eurasia and North America (Table 2). This group was recognised earlier as an order-level ‘Novel clade I’ within the Chytridiomycetes (Lefèvre et al 2008, Jobard et al 2012). Another name for ‘clade I’ is ‘snow chytrids’ (‘Snow Clade 1’ or SC1) according to Naff et al (2013).…”
Section: Resultsmentioning
confidence: 91%
See 1 more Smart Citation
“…Mesochytrium penetrans is the only described species of a diverse group of uncultured fungi from soil, freshwater and hydrobiont gut samples collected from temperate zone of Eurasia and North America (Table 2). This group was recognised earlier as an order-level ‘Novel clade I’ within the Chytridiomycetes (Lefèvre et al 2008, Jobard et al 2012). Another name for ‘clade I’ is ‘snow chytrids’ (‘Snow Clade 1’ or SC1) according to Naff et al (2013).…”
Section: Resultsmentioning
confidence: 91%
“…Molecular phylogeny places the strain x-51 far from Rhizophydiales , as a sister to ‘clade I’ – a cluster containing many environmental sequences of the Chytridiomycetes (Lefèvre et al 2008, Jobard et al 2012) besides a formally described species Mesochytrium penetrans , which was earlier shown to have a rather isolated position among the Chytridiomycetes (Karpov et al 2010). The features that distinguish Mesochytrium are the partial penetration of the host cell by the sporangium and a zoospore with a unique ultrastructural organization.…”
Section: Discussionmentioning
confidence: 99%
“…The LSU is an established phylogenetic marker for Chytridiomycota ) and, unlike the ITS region, it can be used to delimit distant aquatic fungal lineages (Lefèvre et al 2012;Wurzbacher et al 2014). The small ribosomal subunit (SSU) is also well established for early diverging lineages (e.g., Jobard et al 2012;Ishii et al 2015); however, it is less suitable for fungal groups within Dikarya Tedersoo et al 2015) and would fail to generate meaningful OTUs for a broad spectrum of simultaneously occurring fungal phyla, such as in our biofilm habitat. Currently, the major disadvantage of using LSU regions as taxonomic markers for aquatic fungi is the lack of reference sequences that allow assignment.…”
Section: Methodological Considerationsmentioning
confidence: 99%
“…This method requires having a host-parasite couple that can be maintained under culture conditions. However, in freshwater lakes, Chytridiomycota are dominated by uncultured fungi (13,14). Chytrids are difficult to culture, and their maintenance under laboratory conditions requires huge efforts (22).…”
Section: Discussionmentioning
confidence: 99%
“…Nowadays, a precise investigation of these questions requires chytrid cultures (6). However, in freshwater lakes, the phylum of Chytridiomycota is dominated by uncultured fungi (13,14). This could explain why the effects of various different parameters (light, temperature, and nutrients) on chytrid development have been investigated for only a single host-chytrid couple, Asterionella formosa-Rhizophydium planktonicum (6,15,16).…”
mentioning
confidence: 99%