{"id":875,"date":"2019-07-02T03:03:47","date_gmt":"2019-07-02T03:03:47","guid":{"rendered":"https:\/\/magnaporthales.sebs.rutgers.edu\/?p=875"},"modified":"2022-09-21T14:24:27","modified_gmt":"2022-09-21T14:24:27","slug":"pyricularia-grisea","status":"publish","type":"post","link":"https:\/\/magnaporthales.sebs.rutgers.edu\/?p=875","title":{"rendered":"Pyricularia grisea"},"content":{"rendered":"

\"\"<\/p>\n

Figure. Pyricularia grisea<\/em> (BPI 881984). A\u2013E. Conidiophores and conidia. Scale bars: A\u2013E = 10\u00b5m.<\/span><\/p>\n

Pyricularia grisea<\/strong><\/em> Cooke ex Sacc., Michelia 2(no. 6): 20 (1880).<\/span>
\nMycoBank: MB224559.<\/a><\/span>
\n\u00a0 \u00a0 \u00a0 \u00a0 \u2261 Trichothecium griseum<\/em> (Cooke ex Sacc.) Cooke, in Ravenel, Amer. Fungi: no. 580 (1881).<\/span>
\n\u00a0 \u00a0 \u00a0 \u00a0 \u2261 Dactylaria grisea<\/em> (Cooke ex Sacc.) Shirai, in Miyake, J. Coll. Agric. imp. Univ. Tokyo 2: 262 (1910).<\/span>
\n= Magnaporthe grisea<\/em> (T.T. Hebert) M.E. Barr, Mycologia 69:954 (1977).<\/span>
\n\u00a0 \u00a0 \u00a0 \u00a0 \u2261 Ceratosphaeria grisea<\/em> T.T. Hebert, Phytopathology 61:86 (1971).<\/span>
\n\u00a0 \u00a0 \u00a0 \u00a0 \u2261 Phragmoporthe grisea<\/em> (T.T. Hebert) M. Monod, Beih. Sydowia 9: 153 (1983).<\/span><\/p>\n

Ascomata perithecial, superficial or immersed, solitary or gregarious, dark brown to black, 60\u2013300 \u00b5m diam, with a cylindrical, hyaline to light brown neck, 60\u2013150 \u00d7 100\u20131200 \u00b5m. Paraphyses septate, hyaline, dissolving at maturity. Asci 8-spored, unitunicate, clavate, 7\u201310 \u00d7 55\u201390 \u00b5m, with a refractive ring. Ascospores 1\u20133-seriate, fusiform, straight or slightly curved, 3-septate, not or slightly constricted at septum, hyaline, smooth, 4\u20137 \u00d7 17\u201324 \u00b5m (Sexual state description from Hebert, 1971). Conidiophores solitary, erect, straight or curved, unbranched, 1\u20133-septate, brown, smooth, 100\u2013135 \u00d7 3\u20136.5 \u00b5m. Conidiogenous cells integrated, terminal or intercalary, light brown, smooth, 80\u2013110 \u00d7 3\u20136 \u00b5m, with several protruding denticles, 0.5\u20131.5 \u00d7 1\u20132 \u00b5m. Conidia solitary, pyriform to obclavate, 2-septate, light brown, smooth to finely roughened, 24\u201335 \u00d7 7\u201311 \u00b5m, with a truncate hilum, 0.5\u20131.5 \u00d7 1\u20132 \u00b5m.<\/span><\/p>\n

Typification: Lectotype of Pyricularia grisea BPI, Ellis & Everhart, North American Fungi no. 374 (Rossman et al., 1990). Epitype of P. grisea CBSH-22280 (Crous et al., 2015a). Ex-epitype culture of P. grisea CBS138707 (US0043) (Crous et al., 2015a). Holotype of \u201cMagnaporthe grisea\u201d BPI625033 (Hebert, 1971).<\/span><\/p>\n

Gene sequences: JX134656 (18S), JX134670 (ITS), JX134682 (28S), KM485187 (ACT), KM485258 (CAL), JX134710 (MCM7), JX134724 (RPB1), JX134696 (TEF1).<\/span><\/p>\n

Genome sequences: PRJEB7653 (genome), SRX798638 (transcriptome).<\/span><\/p>\n

Specimens examined: USA, Georgia, on Digitaria sanguinalis<\/em>, Aug. 2000, L.P. Tredway, 1120-20 (BPI881983), 1100-4 (BPI881984); Indiana, on Digitaria, 3 Jun. 2011, J. Xu, M63; New Jersey, on Digitaria, 2 Aug. 2013, J. Luo and N. Zhang, RUTPPpg130802a, RUTPPpg130802d.<\/span><\/p>\n

Hosts\/substrates: On Digitaria<\/em>, Echinochlos crus-galli<\/em> var. frumentacea<\/em>, and Lollium perenne<\/em> (Poaceae<\/em>).<\/span><\/p>\n

Distribution: Worldwide.<\/span><\/p>\n

Notes: Saccardo (1880a, b) first proposed Pyricularia grisea<\/em> for a species from Digitaria sanguinalis<\/em> in New Jersey. Cavara (1892) subsequently introduced P. oryzae<\/em> for another species from Oryza sativa<\/em> in Italy. These two species are morphological similar. Historically P. grisea<\/em> was applied to grass and other host isolates, while P. oryzae<\/em> to rice isolates. According to morphology and success interfertility among isolates from various hosts, Rossman et al. (1990) synonymized P. oryzae<\/em> under P. grisea<\/em>. However, Couch and Kohn (2002) revealed generic distinction between them based on multigene phylogeny and RFLP assay. They proposed P. grisea<\/em> for the crabgrass isolates, and P. oryzae<\/em> for rice and other grass isolates. Klaubauf et al. (2014) further investigated the phylogeny of Pyricularia<\/em> and refined definitions of both species. Currently P. grisea<\/em> includes isolates mostly on Digitaria<\/em>, as well as few on Echinochlos crus-galli<\/em> var. frumentacea<\/em> and Lollium perenne<\/em>. Pyricularia grisea<\/em> can cause leaf spot or leaf blight diseases on Digitaria<\/em>.<\/span><\/p>\n

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales<\/a>\u00a0(https:\/\/my.apsnet.org\/APSStore\/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826<\/a>).\u00a0American Phytopathological Society, St. Paul, MN.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Figure. Pyricularia grisea (BPI 881984). A\u2013E. Conidiophores and conidia. Scale bars: A\u2013E = 10\u00b5m. Pyricularia grisea Cooke ex Sacc., Michelia 2(no. 6): 20 (1880). MycoBank: MB224559. \u00a0 \u00a0 \u00a0 \u00a0 \u2261 Trichothecium griseum (Cooke ex Sacc.) Cooke, in Ravenel, Amer. Fungi: no. 580 (1881). \u00a0 \u00a0 \u00a0 \u00a0 \u2261 Dactylaria grisea (Cooke ex Sacc.) Shirai, … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"yoast_head":"\r\nPyricularia grisea - An E-monograph of the Fungal Order Magnaporthales: Taxonomy, Molecular Phylogeny, and Biogeography<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/magnaporthales.sebs.rutgers.edu\/?p=875\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Pyricularia grisea - An E-monograph of the Fungal Order Magnaporthales: Taxonomy, Molecular Phylogeny, and Biogeography\" \/>\r\n<meta property=\"og:description\" content=\"Figure. Pyricularia grisea (BPI 881984). A\u2013E. Conidiophores and conidia. Scale bars: A\u2013E = 10\u00b5m. Pyricularia grisea Cooke ex Sacc., Michelia 2(no. 6): 20 (1880). MycoBank: MB224559. \u00a0 \u00a0 \u00a0 \u00a0 \u2261 Trichothecium griseum (Cooke ex Sacc.) Cooke, in Ravenel, Amer. Fungi: no. 580 (1881). \u00a0 \u00a0 \u00a0 \u00a0 \u2261 Dactylaria grisea (Cooke ex Sacc.) Shirai, ... 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