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Phylogenetic and taxonomic revision of Lopadostoma.

Jaklitsch WM, Fournier J, Rogers JD, Voglmayr H - Persoonia (2014)

Bottom Line: Most species formerly assigned to Lopadostoma do not belong to the genus.Its type and currently only confirmed species Anthostoma decipiens belongs to Diatrypaceae.Anthostoma insidiosum is an older name for Anthostomella (Diatrype) adusta.

View Article: PubMed Central - PubMed

Affiliation: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Wien, Austria;

ABSTRACT
The genus Lopadostoma (Xylariaceae, Xylariales) is revised. Most species formerly assigned to Lopadostoma do not belong to the genus. Twelve species are herein recognised, of which two are only known from morphology. Ten species, of which six (L. americanum, L. fagi, L. insulare, L. lechatii, L. meridionale and L. quercicola) are newly described, are characterised by both morphology and DNA phylogeny using LSU, ITS and rpb2 sequences. Morphologically, ecologically and phylogenetically Lopadostoma is a well-defined genus comprising exclusively species with pustular pseudostroma development in bark of angiospermous trees. Phaeosperma ailanthi, Phaeosperma dryophilum and Sphaeria linosperma are combined in Lopadostoma. Lopadostoma gastrinum is neotypified and L. turgidum is lecto- and epitypified. Species with asci and ascospores similar to those of Lopadostoma but having perithecia immersed in wood, particularly those of Lopadostoma subg. Anthostomopsis have been determined to be unrelated to the genus. DNA data confirm that Anthostoma is unrelated to Lopadostoma. Its type and currently only confirmed species Anthostoma decipiens belongs to Diatrypaceae. DNA data also show that L. pouzarii and Barrmaelia macrospora are unrelated to Lopadostoma. A commentary is provided for names in Lopadostoma and those names in Anthostoma that may be putative species of Lopadostoma based on their protologues. Anthostoma insidiosum is an older name for Anthostomella (Diatrype) adusta.

No MeSH data available.


Lopadostoma cultures at room temperature. a, b. L. americanum (b. reverse); c. L. dryophilum (LG21); d, e. L. fagi (LF 1); f. L. gastrinum (LG2); g. L. insulare (LQM); h. L. lechatii (LG22, 61 d); i. L. linospermum (LPL); j–l. L. meridionale (j. LG; k, l. LG, PDA); m. L. quercicola (LG12); n–p. L. turgidum (LT2; p. 134 d). All on MEA except k, l. All after 35 d except h and p.
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Figure 3: Lopadostoma cultures at room temperature. a, b. L. americanum (b. reverse); c. L. dryophilum (LG21); d, e. L. fagi (LF 1); f. L. gastrinum (LG2); g. L. insulare (LQM); h. L. lechatii (LG22, 61 d); i. L. linospermum (LPL); j–l. L. meridionale (j. LG; k, l. LG, PDA); m. L. quercicola (LG12); n–p. L. turgidum (LT2; p. 134 d). All on MEA except k, l. All after 35 d except h and p.

Mentions: Ascospores of most Lopadostoma species germinate slowly on MEA (after few days to several weeks). Growth rates are slow, the colony radius is in the range of 15–20 mm after 1 mo at room temperature, only L. americanum, L. fagi and L. insulare grow slightly faster, while L. lechatii reaches less than 10 mm after 1 mo. Colonies of Lopadostoma cultures (Fig. 3) start off as flat and white, may develop scant or abundant aerial hyphae and turn yellow, rosy or brown, more pronounced on the reverse. Sometimes brown pigment diffuses through the agar. Most species, albeit not L. gastrinum and L. turgidum, produce a volatile substance, which becomes noticeable as a strong, unpleasant, varnish-like odour.


Phylogenetic and taxonomic revision of Lopadostoma.

Jaklitsch WM, Fournier J, Rogers JD, Voglmayr H - Persoonia (2014)

Lopadostoma cultures at room temperature. a, b. L. americanum (b. reverse); c. L. dryophilum (LG21); d, e. L. fagi (LF 1); f. L. gastrinum (LG2); g. L. insulare (LQM); h. L. lechatii (LG22, 61 d); i. L. linospermum (LPL); j–l. L. meridionale (j. LG; k, l. LG, PDA); m. L. quercicola (LG12); n–p. L. turgidum (LT2; p. 134 d). All on MEA except k, l. All after 35 d except h and p.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150080&req=5

Figure 3: Lopadostoma cultures at room temperature. a, b. L. americanum (b. reverse); c. L. dryophilum (LG21); d, e. L. fagi (LF 1); f. L. gastrinum (LG2); g. L. insulare (LQM); h. L. lechatii (LG22, 61 d); i. L. linospermum (LPL); j–l. L. meridionale (j. LG; k, l. LG, PDA); m. L. quercicola (LG12); n–p. L. turgidum (LT2; p. 134 d). All on MEA except k, l. All after 35 d except h and p.
Mentions: Ascospores of most Lopadostoma species germinate slowly on MEA (after few days to several weeks). Growth rates are slow, the colony radius is in the range of 15–20 mm after 1 mo at room temperature, only L. americanum, L. fagi and L. insulare grow slightly faster, while L. lechatii reaches less than 10 mm after 1 mo. Colonies of Lopadostoma cultures (Fig. 3) start off as flat and white, may develop scant or abundant aerial hyphae and turn yellow, rosy or brown, more pronounced on the reverse. Sometimes brown pigment diffuses through the agar. Most species, albeit not L. gastrinum and L. turgidum, produce a volatile substance, which becomes noticeable as a strong, unpleasant, varnish-like odour.

Bottom Line: Most species formerly assigned to Lopadostoma do not belong to the genus.Its type and currently only confirmed species Anthostoma decipiens belongs to Diatrypaceae.Anthostoma insidiosum is an older name for Anthostomella (Diatrype) adusta.

View Article: PubMed Central - PubMed

Affiliation: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Wien, Austria;

ABSTRACT
The genus Lopadostoma (Xylariaceae, Xylariales) is revised. Most species formerly assigned to Lopadostoma do not belong to the genus. Twelve species are herein recognised, of which two are only known from morphology. Ten species, of which six (L. americanum, L. fagi, L. insulare, L. lechatii, L. meridionale and L. quercicola) are newly described, are characterised by both morphology and DNA phylogeny using LSU, ITS and rpb2 sequences. Morphologically, ecologically and phylogenetically Lopadostoma is a well-defined genus comprising exclusively species with pustular pseudostroma development in bark of angiospermous trees. Phaeosperma ailanthi, Phaeosperma dryophilum and Sphaeria linosperma are combined in Lopadostoma. Lopadostoma gastrinum is neotypified and L. turgidum is lecto- and epitypified. Species with asci and ascospores similar to those of Lopadostoma but having perithecia immersed in wood, particularly those of Lopadostoma subg. Anthostomopsis have been determined to be unrelated to the genus. DNA data confirm that Anthostoma is unrelated to Lopadostoma. Its type and currently only confirmed species Anthostoma decipiens belongs to Diatrypaceae. DNA data also show that L. pouzarii and Barrmaelia macrospora are unrelated to Lopadostoma. A commentary is provided for names in Lopadostoma and those names in Anthostoma that may be putative species of Lopadostoma based on their protologues. Anthostoma insidiosum is an older name for Anthostomella (Diatrype) adusta.

No MeSH data available.