Curvularia muehlenbeckiae

Authors Madrid, K.C. Cunha, Gené, Guarro & Crous 2014
Strain 13021
Classification Pleosporales, Pleosporaceae, Curvularia
Culture collection processing
Detection frequency Medium
Figure Fig. 1 5-day-old colony on PDA Fig. 2 Curvularia muehlenbeckiae. a–b. Conidiophores and conidia. c–d, f. Conidia with verruculose third cell. e. Sporulation on OA (Bars= 5 μm, unless otherwise specified)
Colonies Colonies on PDA attaining 43-mm at 25 °C after 5 days, sparsely cottony, margins white, entire, reverse dark olivaceous to black with white margins.
Conidiophores Conidiophores macronematous, brown, flexuous, septate, simple, up to 300 µm, 3.5–4.5 µm wide.
Conidiogenous cells Conidiogenous cells integrated, terminal or intercalary, often seprated by 1–3 sterile cells at regular intervals, geniculate, sympodial, with darkened and thickened conidial scars.
Conidia Conidia mostly curved, pale brown, with the third cell from the base verruculose, darker and larger than the others, with a thicken hilum at the base, 3-septate, 17–24 × 9–12 µm.
Note This species can be distinguished from other species commonly found on rice seeds by conidia with swollen, echinulate third cell.
Pathogenicity Unknown
Specimens examined Taiwan, Taitung County, rice grains (cultivar Kaohsiung 139), Aug 2013, Jie-Hao Ou, 13021
Taiwan, Taichung City, rice grains (cultivar Tainan 11), Sep 2013, Jie-Hao Ou, 13057
Taiwan, Taichung City, rice grains (cultivar Taichung 65), Feb 2015, Jie-Hao Ou, 15016
Taiwan, Tainan City, rice grains (cultivar Tainan 11), Jul 2014, Jie-Hao Ou, 14080
ITS CACAATAAAATATGAAGGCTGTACGCGGCTGTGCTCTCGGGCCAGTTTTGCGGAGGCTGAATTATTTATTACCCTTGTCTTTTGCGCACTTGTTGTTTCCTGGGCGGGTTCGCCCGCCACCAGGACCACATCATAAACCTTTTTTATGCAGTTGCAATCAGCGTCAGTATAACAAATGTAAATCATTTACAACTTTCAACAACGGATCTCTTGGTTCTGGCATCGATGAAGAACGCAGCGAAATGCGATACGTAGTGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACATTGCGCCCTTTGGTATTCCAAAGGGCATGCCTGTTCGAGCGTCATTTGTACCCTCAAGCTTTGCTTGGTGTTGGGCGTTTTTTGTCTTTGGTTGCCAAAGACTCGCCTTAAAAGGATTGGCAGCCGGCCTACTGGTTTCGCAGCGCAGCACATTTTTGCGCTTGCAATCAGCAAAAGAGGACGGCAATCCATCAAGACTCCTTCTCACGTTTGACCTCGGATCAGGTAGGGATACCCGCTGAACTTAA
EF1a ATCAACAAGATGGACACCACCAAGTGGTCTGAGGAGCGTTACCAGGAAATCATCAAGGAGACCTCCAACTTCATCAAGAAGGTCGGCTACAACCCCAAGCACGTTCCCTTCGTCCCCATCTCCGGTTTCAACGGAGACAACATGATTGAGGCTTCCACCAACTGCCCCTGGTACAAGGGTTGGGAGAAGGAGACCAAGGCCAAGGCCACTGGTAAGACCCTCCTCGAGGCCATCGACGCCATCGACCCCCCTGTCCGTCCTACCGACAAGCCCCTCCGCCTTCCCCTCCAGGATGTCTACAAGATTGGTGGTATTGGCACGGTCCCCGTCGGTCGTGTCGAGACCGGTATCATCAAGCCCGGTATGGTCGTCACCTTCGCCCCCGCTGGTGTCACCACTGAAGTCAAGTCCGTCGAGATGCACCACGAGCAGCTCACCGAGGGTGTCCCCGGTGACAACGTCGGCTTCAACGTCAAGAACGTCTCCGTCAAGGAGATCCGTCGTGGTAACGTTGCCGGTGACTCCAAGAACGACCCCCCCAAGGGTTGCGAGTCCTTCAACGCCCAGGTCATCGTCCTCAACCACCCCGGTCAGGTCGGTGCCGGTTACGCACCAGTCCTTGACTGCCACACTGCCCACATTGCTTGCAAGTTCTCCGAGCTCCTCGAGAAGATCGACCGCCGTACCGGAAAGTCTGTTGAGAACTCCCCCAAGTTCATCAAGTCCGGTGACGCTGCCATCGTCAAGATGGTTCCCTCCAAGCCCATGTGCGTTGA
GPD CATTGGCCGTATCGTCTTCCGCAATGCGTAGGTGTTTCTGAACCCATTGGTCCAGTGTGTATCAAAGCTGATCGTAGCTCGCAGCATCGAGCACAACGACGTCGAGATTGTCGCCGTCAACGACCCCTTCATCGAGCCCCACTACGCTGTAAGCATCCCCAACACAAGCTCCTGCCGTCAGGGCAATGGCAAAGCTAACATCTACCTAGGCATACATGCTCAAGTATGACAGCACACACGGCCAGTTCAAGGGTGACATCAAGGTTGACGGCAACAACCTGACCGTCAACGGCAAGACCGTCCGCTTCCACATGGAGAAGGACCCCGCCAACATCCCATGGAGCGAGACTGGTGCTTACTACGTCGTTGAGTCTACCGGTGTCTTCACCACCACCGAGAAGGCCAAGGCTCACTTGAAGGGAGGAGCCAAGAAGGTTGTCATCTCTGCTCCTTCTGCCGACGCCCCCATG