Synonyms:
- Raffaelea subfusca T.C. Harr., Aghayeva & Fraedrich, Mycotaxon 111: 349 (2010) [MB#515294]
Distribution:
USA: Georgia, South Carolina (Harrington et al. 2010)
Beetle Hosts:
Xyleborus glabratus
Description:
From Harrington et al. 2010:
Colonies on malt extract agar attaining an average diameter of 13 mm in 10 days at 25 C in the dark. Trace of growth at 10 C and 8 to 12 mm diameter at 35 C, maximum growth at 25–30 C. Mycelium light olivaceous (21''''m), darker in the center, indistinct-white near the edges, edges even, reverse indistinct gray to brownish, aroma absent. Two week old cultures grayish-sepia (17'''''i) at the edges and mouse-gray (15''''') in the center, wrinkled, with faint concentric circles, producing sporodochia reduced to discrete fascicles, aerial hyphae scarce. Hyphae branched, smooth, hyaline, septate. Conidiophores micronematous, mononematous, erect, cylindrical, fasciculate, hyaline, septate, scattered, (5–)12–38(–50) x 1.0–1.5(–2.0) mm. Conidia produced singly, ovate to obovoid, sometimes pyriform, (3.5–)4.0–5.0 x (2.5–)3.0–4.0(–5.0) mm.
This species produces conidia similar to those of R. fusca, but cultures of R. subfusca on MEA produce a lighter pigmentation, and R. fusca fails to grow at 35 C. The LSU sequence of R. subfusca and R. fusca are also similar.
Specimens and Cultures:
CBS: 121571 (holotype)
BPI: 878187 (dried culture of holotype)
References:
Harrington TC, DN Aghayeva, SW Fraedrich. 2010. New combinations in Raffaelea, Ambrosiella, and Hyalorhinocladiella, and four new species from the redbay ambrosia beetle, Xyleborus glabratus. Mycotaxon 111: 337-361.
DNA Sequences:
Sequence: LSU: EU177450