Chaetomium undulatulum

Authors Asgari & Zare 2011
Strain 15026
Classification Sordariales, Chaetomiaceae, Chaetomium
Culture collection BCRC FU31240
Detection frequency Low
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Chaetomium undulatulum. a. Perithecia. b. Asci. c. Coiled ascomal hairs. d. ascospores (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 51-mm diam. after 5 days at 25 °C, floccose, azonate, margin entire, reverse yellowish brown with white margins.
Ascomata Perithecia dark black, globose to subglobose, up to 400 µm in diameter. Ascomal hairs abundant, pale brown with golden brown ornamentations, coiled, 15–35 µm long per coil, tapering and paler near the apex, 3–5 µm wide near the base, up to 500 µm in length.
Asci Asci clavate, 8-spores, 39–60 × 18–28 µm.
Ascospores Ascospores limoniform, hyaline to subhyaline, turning grey to olivaceous brown when mature, guttulated, with a inconspicious germ pore, 11.5–13.5 × 7.5–9 µm.
Note This species was originally isolated from the leaves of wheat and barley (Asgari & Zare, 2011). Strain 15026 shares 99.61%, 99.15%, 95.84% identities in ITS, EF1a, RPB2 regions respectively with the ex-type strain of Chaetomium undulatulum (CBS 126775; HM365251, KT214720, KT214682).
Pathogenicity Unknown.
Specimens examined Taiwan, Taichung City, rice grains (cultivar Taichung Native 1), Feb 2015, Jie-Hao Ou, 15026
ITS AAACTCCCTAAACCATTGTGAACGTTACCTAAACCGTTGCTTCGGCGGGCGGCCCCGGGGTTTACCCCCCGGGCGCCCCTGGGCCCCACCGCGGGCGCCCGCCGGAGGTCACCAAACTCTTGATAATTTATGGCCTCTCTGAGTCTTCTGTACTGAATAAGTCAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGTATTCTGGCGGGCATGCCTGTTCGAGCGTCATTTCAACCATCAAGCCCCGGGCTTGTGTTGGGGACCTGCGGCTGCCGCAGGCCCTGAAAAGCAGTGGCGGGCTCGCTGTCACACCGAGCGTAGTAGCATACATCTCGCTCTGGGCGTGCTGCGGGTTCCGGCCGTTAAACCACCTTTTAACCCAAGGTTGACCTCGGATCAGGTAGGAAGACCCGCTGAACTTAA
EF1a ACATGATTACTGGTACCTCCCAGGCCGATTGCGCTATTCTCATCATTGCCGCTGGTACTGGTGAGTTCGAGGCTGGTATCTCCAAGGATGGCCAGACCCGTGAGCACGCTCTGCTCGCCTACACCCTGGGTGTCAAGCAGCTCATCGTCGCCATCAACAAGATGGACACCACCAAGTGGTCCGAGGACCGTTACAAGGAGATCATCAAGGAGACCTCCAACTTCATCAAGAAGGTCGGCTACAACCCCAAGACCGTTGCCTTCGTCCCCATCTCCGGCTTCAACGGCGACAACATGCTTGAGGTCACCACCAACGCTCCTTGGTACAAGGGCTGGGAGAGGGAGATCAAGAGCGGCAAGCTCACCGGCAAGACCCTCCTTGAGGCCATCGACTCCATCGAGCCCCCCAAGCGCCCCACCGACAAGCCGCTCCGTCTTCCCCTCCAGGATGTGTACAAGATCGGTGGTATTGGAACGGTCCCTGTCGGCCGTATCGAGACTGGTATCCTGAAGCCCGGCATGGTCGTCACCTTCGCTCCTTCCAACGTCACTACGGAAGTCAAGTCCGTCGAGATGCACCACGAGCAGCTTACCCAGGGTGTTCCCGGCGACAACGTTGGTTTCAACGTCAAGAACGTCTCCGTCAAGGAGATTCGTCGTGGCAACGTTGCCGGTGACTCCAAGAACGACCCGCCCCTTGGTGCTGCGTCGTTCGACGCTCAGGTCATTGTCCTGAACCACCCCGGTCAGGTTGGTGCTGGCTACGCCCCCGTCCTCGACTGCCACACCGCCCACATTGCCTGCAAGTTCGCCGAGCTCCGCGAGAAGATCGACCGCCGTACCGG
RPB2 AGGCGGCGAGCTCAACGGCCGGTGTGTCACAGGTGTTGAACCGTTACACTTTTGCTTCGACGCTTTCCCATTTGCGCCGTACGAACACGCCCATCGGGCGCGACGGAAAGCTCGCGAAGCCCCGTCAGCTTCATAACACCCATTGGGGCTTGGTGTGCCCGGCTGAGACGCCCGAAGGCCAGGCTTGTGGTCTCGTCAAAAACTTGTCACTGATGTGTTACGTCAGTGTGGGCACGCCCGCTGATCCCATCGTCGAGTTCATGATTGCCCGAGGCATGGAAGTGCTCGAGGAGTACGAGCCACTCCGATACCCCAACGCCACCAAGGTGTTCGTCAACGGTACCTGGGTAGGTGTCCATCAAGACCCGAAGCACCTCGTCACACTGGTCCAGGGGCTGCGGAGAAAGAACGTCATCTCCTTCGAGGTGTCGCTCGTTAGAGATATCCGCGACCGTGAGTTCAAGATCTTTTCAGATGCGGGTCGCGTCATGAGACCGCTTTTCACGGTGGAGCAAGAACCAAACGGCGAGAGCGGCGCTGAGATGGGCGCGCTGATCCTCAACAAGGAGCATGTTGGGAAGCTGAAGTTGGACNCCGAGTATGGCAAATACCACCCGAACTACTGGGGCTGGCAAGGCTTATTGAAGTCGGGCGCTATTGAATATCTCGACGCTGAGGAAGAGGAGACGGTGATGATCTGCATGACCCCCCAGGATCTCGACCAGTTCCGTGCCCGCAAGCAGGGAAGATTCGAGCAGGACAACTCGGGGTTGGGCAATAACCGCATCAAGACGAAGCCGAACCCGACGACTCACATGTACACGCATTGCGAGATCCATCCCAGCATGCTCCTCGGCATCTGCGCGAGCATCATCCCCT