Creosphaeria sassafras

Authors (Schwein.) Y.M. Ju, F. San Martín & J.D. Rogers 1993
Strain 14173
Classification Xylariales, Lopadostomataceae, Creosphaeria
Culture collection BCRC FU31416
Detection frequency Low
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Creosphaeria sassafras. a–c, e. Conidiophores and conidia. d. Vegetative hyphae with brown exudates. f. Conidia (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 26-mm at 25 °C after 5 days, margins entire, cottony, white, reverse white, turning black with age.
Conidiophores Conidiophores macronematous, or micronematous, erect or prostrate, simple or with a few branches, with 1–3 terminal conidiogenous cells, hyaline, turning brown with age.
Conidiogenous cells Conidiogenous cells sympodial, polyblastic, hyaline or pale brown, cylindrical, tapering toward the apex, 15–22 × 2–3 μm, shorter when arising directly from hyphae (or reduced conidiophores). Reduced conidiogenous cells occasionally present, arising from intercalary cells without a basal septum.
Conidia Conidia wet, hyaline, falcate, curved near the apex, 15–22 × 1.5–2 μm.
Note This species is widespread, and is recognized in nature by its sexual morph, erumpent stromata, on wood. This is an interesting discovery for it being occurring on rice seeds.
Pathogenicity Unknown. Commonly found as endophyte or saprophyte.
Specimens examined Taiwan, Miaoli County, rice grains (cultivar Miaoli 2), Dec 2014, Jie-Hao Ou, 14173
ITS CCAAACCCAATGTGAACCTACCTATGTTGCCTCGGCGGGAGAAGCCTACCCGGTACCTACCCTGTAGCTACCCGGGAACTACCCTGTAGTTGATGGCGGACCCGCCGGTGGACATTTTAAAAACTCTTGTTTTACTGTGACACTCTGAGTAACAAACTAAATAAGTTAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCATTAGTATTCTAGTGGGCATGCCTGTTCGAGCGTCATTTCAACCCTTAAGCCTTAGTTGCTTAGCGTTGGGAGGTTGCCTCTCGCAACTCCCTAAAATCAGTGGCAAGGACCACGACACCTTGAAGTGTAGTAGTTTAATTCTCACTTTGGAGGACCGTAGCCCAGCCATAAACCAACTATTTTTAATTATTGGTTGACCTCGGATCAGGTAGGAATACCCGCTGAACTTAA
LSU AAAGAAACCAACAGGGATTGCCCTAGTAACGGCGAGTGAAGCGGCAACAGCTCAAATTTGAAATCTGGCCTTAGGGTCCGAGTTGTAATTTGTAGAGGATGCTTTTGGTGCGGTACCTTCCGAGTTCCCTGGAACGGGACGCCATAGAGGGTGAGAGCCCCGTACGGTTGGATACCTAGCCTCTGTAAAGCTCCTTCGACGAGTCGAGTAGTTTGGGAATGCTGCTCTAAATGGGAGGTAAATTTCTTCTAAAGCTAAATACCGGCCAGAGACCGATAGCGCACAAGTAGAGTGATCGAAAGATGAAAAGCACTTTGAAAAGAGGGTTAAATAGCACGTGAAATTGTTGAAAGGGAAGCGCTTATGACCAGACTTTTGTCCGGCGGATCATCCGGTGTTCTCACCGGTGCACTTCGCCGGGCTGAGGCCAGCATCGATTTCTGTAGGGGGATAAAGACTTCAGGAAAGTAGCTCCCTTCGGGGAGTGTTATAGCCCGTTGTGTAATACCCCTATAGG