A comprehensive molecular phylogeny of the &lt;I&gt;Mortierellales&lt;/I&gt; (&lt;I&gt;Mortierellomycotina&lt;/I&gt;) based on nuclear ribosomal DNA

Wagner, Lysett; Stielow, B.; Hoffmann, Kerstin; Petkovits, Tamás; Papp, Tamás; Vágvölgyi, Csaba; Hoog, G. S. de; Verkley, G.J.M.; Voigt, Kerstin

doi:10.3767/003158513x666268

Cited by 125 publications

(155 citation statements)

References 20 publications

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“…Mortierella alpina is a saprobe utilizing decaying organic matter (Wagner et al, 2013), and due to its ability to solubilize phosphorus also develops a mutualistic association with another fungal genus that forms mycorrhizal symbioses with sagebrush (Wicklow-Howard, 1994;Zhang et al, 2011). All 39 isolates tested by initiated freezing at −5 to −6 • C. They also typically released 10 8 to 10 9 small (< 10 nm) INPs per gram fresh weight of mycelium that nucleated between −5 and −8 • C (see O'Sullivan et al, 2015).…”

Section: In Fungimentioning

confidence: 99%

Sources of organic ice nucleating particles in soils

et al. 2016

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Abstract. Soil organic matter (SOM) may be a significant source of atmospheric ice nucleating particles (INPs), especially of those active > −15 • C. However, due to both a lack of investigations and the complexity of the SOM itself, the identities of these INPs remain unknown. To more comprehensively characterize organic INPs we tested locally representative soils in Wyoming and Colorado for total organic By contrast, lysozyme, which digests bacterial cell walls, only reduced INPs active at ≥ −7.5 or ≥ −6 • C, depending on the soil. The known IN bacteria were not detected in any soil, using PCR for the ina gene that codes for the active protein. We directly isolated and photographed two INPs from soil, using repeated cycles of freeze testing and subdivision of droplets of dilute soil suspensions; they were complex and apparently organic entities. Ice nucleation activity was not affected by digestion of Proteinase K-susceptible proteins or the removal of entities composed of fulvic and humic acids, sterols, or aliphatic alcohol monolayers. Organic INPs active colder than −10 to −12 • C were resistant to all investigations other than heat, oxidation with H 2 O 2 , and, for some, digestion with papain. They may originate from decomposing plant material, microbial biomass, and/or the humin component of the SOM. In the case of the latter then they are most likely to be a carbohydrate. Reflecting the diversity of the SOM itself, soil INPs have a range of sources which occur with differing relative abundances.

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Section: In Fungimentioning

confidence: 99%

Sources of organic ice nucleating particles in soils

et al. 2016

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“…Degawa ). All of these Mortierella species showing high similarities are belonged to the "group 7 gamsii" in the molecular phylogenetic analysis of the genus Mortierella by Wagner et al (2013). Then the sequences were aligned with those of 18 spp.…”

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confidence: 99%

“…Recently, Wagner et al (2013) tried to analyze the molecular phylogeny of the genus Mortierella. In their study, the species forming clustered chlamydospores (like M. beljakovae, M. parazychae, M. simplex, M. zychae, D. decumbens) were scattered in distant clades.…”

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confidence: 99%

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Mortierella thereuopodae, a new species with verticillate large sporangiophores, inhabiting fecal pellets of Scutigeromorpha

et al. 2014

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ChlamydosporeTaxonomy Trophocyst Zygomycota a b s t r a c t A new species, Mortierella thereuopodae, is described for a fungus sporulating on fecal pellets of the centipede Thereuopoda clunifera (Chilopoda). The species produces large cymosely to verticillately branched sporangiophores on well-developed rhizoids with the formation of chlamydospore clusters.In the course of the survey for the mortierellaceous fungi in Japan, unusual species with relatively large cymosely to verticillately branched sporangiophores were noticed around the fecal pellets of a centipede on agar media. The sporangiophores are hyaline, almost lacking a columella, with narrow, dichotomously branched hyphae, suggesting a member of the genus Mortierella that could not to be assigned to a known species. Based on the precise observations on the asexual morphology in pure cultures of the three available isolates, and the special habitat (origin of isolation), the fungus was judged to be an undescribed taxon of section Spinosa of the genus Mortierella. The new species was described with illustrations and the sequences of nuclear ribosomal internal transcribed spacer region (ITS1-5.8S-ITS2; ITS) were determined.Animals of the family Scutigeridae (order Scutigeromorpha, class Chilopoda) were collected in Honshu and Ryukyu islands, Japan, then moved to the laboratory and kept in a plastic container to obtain fecal pellets. With the monograph of soil arthropods (Shinohara 1999), the animals were identified as Thereuopoda clunifera. Fecal pellets were placed on agar plates of nutrient-poor media with the addition of penicillin-G sodium salt and streptomycin sulfate; 1.5% water agar (WA) or 0.3% shrimp agar (Sh3A; Degawa and Tokumasu 1997), and incubated at room temperature (ca. 23 C). From the developing sporangiophores, sporangiospores were picked up /locate /m yc m y c o s c i e n c e 5 5 ( 2 0 1 4 ) 3 0 8 e3 1 3 1340-3540/$ e see front matter ª

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“…Obtaining genomic information would aid efforts to elucidate the structure of this clade, which rDNA data alone are unable to resolve [10]. The current molecular phylogeny of Mortierellomycotina shows that the dominating genus Mortierella contains several other genera, which are very different morphologically, but which have similar rDNA.…”

Section: Mortierellomycotinamentioning

confidence: 99%