Colletotrichum karstii

Authors You L. Yang, Zuo Y. Liu, K.D. Hyde & L. Cai 2011
Strain 13063
Classification Glomerellales, Glomerellaceae, Colletotrichum
Culture collection BCRC FU30222
Detection frequency Low
Accession number LC494365
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Colletotrichum karstii. a. Conidiomata. b, d. Conidiogenous cells and acervuli. c. Conidia. e. Appressoria. f. Asci (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 65-, 67-, 0-mm at 24 °C, 28 °C and 37 °C after 5 days, margin entire, floccose, with scattered pale orange and dark black spots which corresponding to acervuli and ascomata, reverse white to pale orange, distinctly zonated.
Conidiophores Conidiophores hyaline, pale brown near base, branched.
Conidiogenous cells Conidiogenous cells, hyaline, elongated-ampulliform, 10–25 × 2.5–5 µm, opening 1–2 µm.
Conidia Conidia hyaline, aseptate, straight, ellipsoidal, one end rounded, the other slightly protruding and truncated, 12.5–15 × 6–7.5 µm.
Setae Setae not observed on PDA or CMA.
Appressoria Appressoria solitary or in group, bullet-shape or irregularly lobed, 7–12 × 3–7 µm.
Note This species was primarily reported to be pathogenic or endophytic of many orchids (Yang et al., 2011). Strain 13063 share 99.8% and 94.6% identity in ITS and ACT regions with the ex-type strain of Colletotrichum karstii (CBS 132134, NR_144790, HM581995)
Pathogenicity Unknown.
Specimens examined Taiwan, Taichung City, rice grains (cultivar Tainung 67), Oct 2013, Jie-Hao Ou, 13063
ITS GGAGGGATCATTACTGAGTTACCGCTCTATAACCCTTTGTGAACATACCTACAACTGTTGCTTCGGCGGGTAGGCCGTCCCCTGAAAAGGACGCCTCCCGGCCCGGACCGGACCCCCCGCGGGACCGGACCCGGCGCCCGCCGGAGGATAACCAAACTCTATTGTAACGACGTTTCTTCTGAGTGGCATAAGCAAAATAATCAAAACTTTTAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCGCCAGCATTCTGGCGGGCATGCCTGTTCGAGCGTCATTTCAACCCTCAAGCTCTGCTTGGTGTTGGGGCTCTACGGTCGACGTAGGCCCTCAAAGGTAGTGGCGGACCCTCCCGGAGCCTCCTTTGCGTAGTAACATTTCGTCTCGCACTGGGATCCGGAGGGACTCTTGCCGTAAAACCCCCCAATTTTCCAAAGGTTGACCTCGGATCAGGTAGGAATACCCGCTGAACTTAA
ACT GCTTTCCCCGCCGTCTCACCGACCATTCCGCCTCCTGGGCATCGTCAGGATCTGGCCGCCAGTCAGCCCTCTCGATAACCCATTGGGCCCCCGTCCATCGATTCAATATCCATCAAGATGATTATGGTCCTAACTAGAGTCTAGTTCGGGTATGTGCAAGGCCGGTTTCGCCGGTGATGATGCGCCCAGAGCTGTTTTCCGTAAGTTCTTCCATCCCAGACCGCAATCCGACCCCTTTAGGAGGTGATCGAGATCTGCGGTCGTCGGCCTTCAGAAAGGACATGTCGATTCTGACAACACCTCAGCCTCCATTGTCGGTCGCCCTCGCCACCATGGGTACGTTTCTTCCCTCGCCTTCACTGCGGCATATTCCCCTACCCGCGCCGCGGCCGTCGCCTAACATGTGAATAGTATCATGATTGGTATGGGCCAGAAGGACTCGTACGTCGGTGATGAGGCACAGTCG