Chaetomium globosum

Authors Kunze 1817
Strain 14100
Classification Sordariales, Chaetomiaceae, Chaetomium
Culture collection BCRC FU31236
Detection frequency Low
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Chaetomium globosum. a–b. Asci and ascospores. c. Perithecia. d. Mature ascospores (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 52-mm diam. after 5 days at 25 °C, with moderate aerial mycelium, azonate, margin sinuate, reverse light brown to yellowish brown.
Ascomata Perithecia dark black, globose to subglobose, up to 400 µm in diameter. Ascomal hairs abundant,dark olivaceous, loosely coiled, 35–60 µm long per coil, tapering and paler near the apex, 3–5 µm wide near the base, up to 1.5 mm in length.
Asci Asci clavate, 8-spores, 60–90 × 20–28 µm.
Ascospores Ascospores limoniform to broad fusiform, hyaline to subhyaline, turning grey to olivaceous brown when mature, with a inconspicious germ pore, 8–11 × 7–9 µm.
Note This species was reported to be viable after hot water treatment (60°C, 10 min). Strain 14100 shares 99.80%, 99.88%, 99.80% identities in ITS, EF1a, RPB2 regions respectively with the neotype strain of Chaetomium globosum (CBS 160.62; KT214565, KT214704, KT214666).
Pathogenicity This species is considered an endophyte and is often isolated from various parts of rice (Naik et al., 2009). It has been reported that it may have biological control potential (Soytong & Ouimio, 1989; Tongon & Soytong, 2015).
Specimens examined Taiwan, Ilan County, rice grains, Aug 2014, Jie-Hao Ou, 14100
ITS CCTAAACCATTGTGAACGTTACCTATACCGTTGCTTCGGCGGGCGGCCCCGGGGTTTACCCCCCGGGCGCCCCTGGGCCCCACCGCGGGCGCCCGCCGGAGGTCACCAAACTCTTGATAATTTATGGCCTCTCTGAGTCTTCTGTACTGAATAAGTCAAAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGCATTCTGGCGGGCATGCCTGTTCGAGCGTCATTTCAACCATCAAGCCCCCGGGCTTGTGTTGGGGACCTGCGGCTGCCGCAGGCCCTGAAAAGCAGTGGCGGGCTCGCTGTCGCACCGAGCGTAGTAGCATACATCTCGCTCTGGTCGCGCCGCGGGTTCCGGCCGTTAAACCACCTTTTTAACCCAAGGTTGACCTCGGATCAGGTAGGAAGACCCGCTGAACTTAA
EF1a ATGATTACTGGTACCTCCCAGGCTGATTGCGCTATTCTCATCATCGCCTCTGGTACTGGTGAGTTCGAGGCTGGTATCTCCAAGGATGGCCAGACCCGTGAGCACGCTCTGCTCGCCTACACCCTGGGTGTCAAGCAGCTCATCGTCGCCATCAACAAGATGGACACCACCAAGTGGTCTGAGGCCCGCTACCAGGAGATCATCAAGGAGACCTCCAACTTCATCAAGAAGGTCGGCTACAACCCCAAGTCCGTTGCCTTCGTCCCTATCTCCGGCTTCCACGGCGACAACATGCTTGAGCCCACCACCAACGCTCCTTGGTACAAGGGCTGGGAGAAGGAGGCCAAGGGGGGTGCCAAGGTCACTGGCAAGACCCTCCTCGAGGCCATCGACTCCATCGAGCCCCCCAAGCGTCCTACCGACAAGCCGCTCCGTCTTCCCCTCCAGGATGTGTACAAGATCGGTGGTATCGGAACGGTCCCTGTCGGCCGTATCGAGACTGGTATCCTGAAGCCCGGTATGGTCGTCACCTTCGCCCCTTCCAACGTCACCACGGAAGTCAAGTCCGTCGAGATGCACCACGAGCAGCTTACCGAGGGTGTTCCCGGCGACAACGTTGGTTTCAACGTCAAGAACGTCTCCGTCAAGGATATTCGCCGTGGCAACGTCGCTGGCGACTCCAAGAACGACCCGCCCATGGGTGCTGCGTCGTTCGACGCTCAGGTCATTGTCCTGAACCACCCCGGCCAGGTCGGTGCTGGTTACGCCCCCGTCCTCGACTGCCACACGGCCCACATTGCCTGCAAGTTCGCCGAGCTCCAGCAGAAGATCGATCGCCGTACCGGC
RPB2 AGGCGGCGAGCTCCACTGCCGGTGTGTCGCAGGTGTTGAACCGCTACACTTTTGCCTCGACCCTGTCCCATTTACGGCGCACCAACACACCCATCGGGCGCGACGGAAAGCTTGCAAAGCCCCGCCAGCTTCACAACACTCATTGGGGATTGGTGTGCCCGGCTGAGACGCCCGAAGGCCAGGCTTGCGGTCTCGTCAAAAACTTGTCACTGATGTGCTACGTCAGTGTGGGCACCCCCGCGGACCCGATCGTTGAGTTCATGATCGCCCGAGGTATGGAAGTGCTCGAGGAGTACGAACCACTCCGATATCCGAACGCCACCAAGGTGTTCGTAAACGGCACTTGGGTGGGTGTTCACCAAGACCCAAAGCATCTTGTCACGCTGGTTCAGGGGCTGCGGAGAAAGAACGTTATCTCGTTTGAGGTTTCGCTCGTTAGAGACATCCGCGACCGTGAGTTCAAGATCTTTTCAGATGCGGGTCGGGTGATGAGGCCGCTGTTCACGGTGGAGCAAGAACCGAATGGCGAGAGCGGCGCTGAGATGGGCGCACTGATCCTGAATAAGGATCATATTGGGCGCCTGAAGATGGACGCAGAGCTGGGCAAATACCACCCGGACTACTGGGGCTGGCAAGGCCTGTTGAAGTCGGGCGCTATTGAGTATCTTGATGCTGAGGAGGAGGAGACGGTCATGATCTGCATGACCCCCCAGGATCTTGATCAGTTCCGTGCCCGCAAGATGGGAAGGATCGAGCCGGACAACTCCGGGTTGGGCAATAACCGGATCAAGACGAAACCAAATCCGACAACTCACATGTACACGCACTGCGAGATCCATCCGAGCATGCTCCTCGGCATCTGCGCAAGCATCATCCCCT