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Taxonomic study of the Japanese Dacrymycetes.

Shirouzu T, Hirose D, Tokumasu S - Persoonia (2009)

Bottom Line: Dacryopinax sphenocarpa has sharp, spathulate basidiocarps, and hyphae with clamp connections.Descriptions, illustrations and photographs of fruit bodies are presented with some taxonomic notes.Molecular phylogenetic analyses were conducted to verify the species identification, and the remaining problems in Dacrymycetes taxonomy are discussed based on these data.

View Article: PubMed Central - PubMed

Affiliation: Fungus/Mushroom Resource and Research Center, Tottori University, Minami 4-101, Koyama, Tottori, Tottori, 680-0945 Japan;

ABSTRACT
The class Dacrymycetes is a rather small group of brown-rot wood-decaying jelly fungi characterised by forked basidia and an orange to yellow gelatinous to cartilaginous fruit body. In Japan, dacrymycetous fungi had not been investigated for a long time, justifying a taxonomic re-examination. In the present study we attempted an investigation of the dacrymycetous fungal flora of Japan, and recognised 28 taxonomic entities, including five new taxa, i.e. Dacrymyces ancyleus, D. aureosporus, D. pinacearum, D. subarcticus and Dacryopinax sphenocarpa, and nine new records. Due to the present survey, the total number of dacrymycetous species recorded from Japan increased from 28 to 42. Of the newly described species, Dacrymyces ancyleus is characterised by recurved, cylindrical basidiocarps and hyphae with clamp connections. Dacrymyces aureosporus resembles D. chrysospermus, but differs in wall thickness of its marginal hyphae. Dacrymyces pinacearum and D. subarcticus represent new coelomycetous anamorphic species. Dacryopinax sphenocarpa has sharp, spathulate basidiocarps, and hyphae with clamp connections. Descriptions, illustrations and photographs of fruit bodies are presented with some taxonomic notes. Molecular phylogenetic analyses were conducted to verify the species identification, and the remaining problems in Dacrymycetes taxonomy are discussed based on these data.

No MeSH data available.


Most parsimonious tree of Dacrymycetes using 28S rDNA D1/D2 region sequences. One of the 24 most parsimonious trees. Length = 901, CI = 0.3563, RI = 0.8137. Branch with asterisk (*) collapse in the strict consensus tree of all most parsimonious trees. Numbers above the node or to the left of slashes (/) indicate support above 50 % in 1 000 bootstrap replicates with parsimony analyses. Numbers above the node or to the right of slashes (/) indicate support above 50 % in 100 bootstrap replicates with likelihood analyses. Bold nodes are supported more than 80 % MP and 80 % ML bootstrap values. Newly described species in this study are shown in bold. TreeBASE SN4250.
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Figure 16: Most parsimonious tree of Dacrymycetes using 28S rDNA D1/D2 region sequences. One of the 24 most parsimonious trees. Length = 901, CI = 0.3563, RI = 0.8137. Branch with asterisk (*) collapse in the strict consensus tree of all most parsimonious trees. Numbers above the node or to the left of slashes (/) indicate support above 50 % in 1 000 bootstrap replicates with parsimony analyses. Numbers above the node or to the right of slashes (/) indicate support above 50 % in 100 bootstrap replicates with likelihood analyses. Bold nodes are supported more than 80 % MP and 80 % ML bootstrap values. Newly described species in this study are shown in bold. TreeBASE SN4250.

Mentions: Dacrymyces microsporus is similar in basidiocarp and basidiospore shape to D. ancyleus, but the hyphae composing basidiocarps of D. microsporus do not have clamp connections. Dacrymyces flabelliformis is also similar to D. ancyleus in basidiocarp shape and by having clamp connections on hyphae (Burdsall & Laursen 2004), but D. flabelliformis is different from this fungus in basidiospore size (12.5–14 × 5–6 μm) and the septal number (3-septate); therefore, we consider this fungus to be a new species of Dacrymyces. In molecular phylogenetic analyses (Fig. 16), this species represented a monophyletic group with Dacryopinax sphenocarpa, but the phylogenetic position in the Dacrymycetes lineage was uncertain.


Taxonomic study of the Japanese Dacrymycetes.

Shirouzu T, Hirose D, Tokumasu S - Persoonia (2009)

Most parsimonious tree of Dacrymycetes using 28S rDNA D1/D2 region sequences. One of the 24 most parsimonious trees. Length = 901, CI = 0.3563, RI = 0.8137. Branch with asterisk (*) collapse in the strict consensus tree of all most parsimonious trees. Numbers above the node or to the left of slashes (/) indicate support above 50 % in 1 000 bootstrap replicates with parsimony analyses. Numbers above the node or to the right of slashes (/) indicate support above 50 % in 100 bootstrap replicates with likelihood analyses. Bold nodes are supported more than 80 % MP and 80 % ML bootstrap values. Newly described species in this study are shown in bold. TreeBASE SN4250.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2802733&req=5

Figure 16: Most parsimonious tree of Dacrymycetes using 28S rDNA D1/D2 region sequences. One of the 24 most parsimonious trees. Length = 901, CI = 0.3563, RI = 0.8137. Branch with asterisk (*) collapse in the strict consensus tree of all most parsimonious trees. Numbers above the node or to the left of slashes (/) indicate support above 50 % in 1 000 bootstrap replicates with parsimony analyses. Numbers above the node or to the right of slashes (/) indicate support above 50 % in 100 bootstrap replicates with likelihood analyses. Bold nodes are supported more than 80 % MP and 80 % ML bootstrap values. Newly described species in this study are shown in bold. TreeBASE SN4250.
Mentions: Dacrymyces microsporus is similar in basidiocarp and basidiospore shape to D. ancyleus, but the hyphae composing basidiocarps of D. microsporus do not have clamp connections. Dacrymyces flabelliformis is also similar to D. ancyleus in basidiocarp shape and by having clamp connections on hyphae (Burdsall & Laursen 2004), but D. flabelliformis is different from this fungus in basidiospore size (12.5–14 × 5–6 μm) and the septal number (3-septate); therefore, we consider this fungus to be a new species of Dacrymyces. In molecular phylogenetic analyses (Fig. 16), this species represented a monophyletic group with Dacryopinax sphenocarpa, but the phylogenetic position in the Dacrymycetes lineage was uncertain.

Bottom Line: Dacryopinax sphenocarpa has sharp, spathulate basidiocarps, and hyphae with clamp connections.Descriptions, illustrations and photographs of fruit bodies are presented with some taxonomic notes.Molecular phylogenetic analyses were conducted to verify the species identification, and the remaining problems in Dacrymycetes taxonomy are discussed based on these data.

View Article: PubMed Central - PubMed

Affiliation: Fungus/Mushroom Resource and Research Center, Tottori University, Minami 4-101, Koyama, Tottori, Tottori, 680-0945 Japan;

ABSTRACT
The class Dacrymycetes is a rather small group of brown-rot wood-decaying jelly fungi characterised by forked basidia and an orange to yellow gelatinous to cartilaginous fruit body. In Japan, dacrymycetous fungi had not been investigated for a long time, justifying a taxonomic re-examination. In the present study we attempted an investigation of the dacrymycetous fungal flora of Japan, and recognised 28 taxonomic entities, including five new taxa, i.e. Dacrymyces ancyleus, D. aureosporus, D. pinacearum, D. subarcticus and Dacryopinax sphenocarpa, and nine new records. Due to the present survey, the total number of dacrymycetous species recorded from Japan increased from 28 to 42. Of the newly described species, Dacrymyces ancyleus is characterised by recurved, cylindrical basidiocarps and hyphae with clamp connections. Dacrymyces aureosporus resembles D. chrysospermus, but differs in wall thickness of its marginal hyphae. Dacrymyces pinacearum and D. subarcticus represent new coelomycetous anamorphic species. Dacryopinax sphenocarpa has sharp, spathulate basidiocarps, and hyphae with clamp connections. Descriptions, illustrations and photographs of fruit bodies are presented with some taxonomic notes. Molecular phylogenetic analyses were conducted to verify the species identification, and the remaining problems in Dacrymycetes taxonomy are discussed based on these data.

No MeSH data available.