Erythrogloeum
Erythrogloeum Speg., Anal. Mus. nac. B. Aires, Ser. 3 13: 388 (1910) [1911]
Citation when using this entry, Chen C. et al. in prep. – An updated monograph of Coelomycetes, Mycosphere
Index Fungorum, Facesoffungi number, MycoBank, GenBank
Classification: Erythrogloeaceae, Diaporthales, Sordariomycetes, Ascomycota, Fungi
Parasitic on the host plant. The sexual morph is undetermined. The asexual morph is characterised by immersed to erumpent conidiomata, which are acervulus, brown, separate, unilocular, subglobose, dark brown to black at the sides, and exuding luteous to orange conidial masses. The ostiole is absent, ruptured by irregular splits. The conidiomatal wall is comprised of cells of textura angularis, which is thin-walled and pale brown. Conidiophores are reduced to conidiogenous cells. Conidiogenous cells are enteroblastic, phialidic, determinate, lageniform to cylindrical, hyaline, smooth wall and with a thickened periclinal wall prominent. Conidia are hyaline, thin-walled, guttulate or eguttulate, ellipsoid to ovoid, base tapering to a truncate and apex obtusely rounded (Petrak 1935, Sutton 1980, Crous et al. 2012, Li et al. 2020).
Type species: Erythrogloeum hymenaeae Gonz. Frag. & Cif. ex Petr., Sydowia 7(5-6): 379 (1953)
Notes: Erythrogloeum was introduced by Petrak (1935) based on the type species E. hymenaeae. Erythrogloeum hymenaeae was first reported as a well-known pathogen, which can cause leaf spots and anthracnose of Hymenaea spp. (Ferreira et al. 1992). Erythrogloeum pini-acicola is a pine needle pathogen (Evans et al. 1984). Crous et al. (2012) placed Erythrogloeum in Diaporthales based on ITS and LSU sequence data of E. hymenaeae. Currently, there are two species listed in Erythrogloeum in Species Fungorum (May 2024). Molecular data are only available for E. hymenaeae in GenBank (May 2024). The updated taxonomic treatment of this genus is Erythrogloeaceae, in Diaporthales (Sordariomycetes) (Wijayawardene et al. 2022).
For all accepted species: see Species Fungorum, and search Erythrogloeum.
Erythrogloeum hymenaeae (redrawn from Sutton 1980) a Conidiogenous cells and developing conidia. b Conidia. c Vertical section of conidioma. Scale bars: a–b = 10 μm, c = 100 μm. (a–b Originally published in Li et al. (2020) and republished with authority, c redrawn by Chao Chen)
References
Crous PW, Summerell BA, Alfenas AC, Edwards J et al. 2012 – Genera of diaporthalean coelomycetes associated with leaf spots of tree hosts. Persoonia 28, 66–75.
Evans HC. 1984 – The genus Mycosphaerella and its anamorphs Cercoseptoria, Dothistroma and Lecanosticta on pines. Mycological Papers 153, 1–102.
Ferreira FA, Demuner NL, Rezende DV. 1992 – Leaf spot, defoliation and anthracnose of jatoba (Hymenaea spp.) caused by Erythrogloeum hymenaeae. Fitopatologia Brasileira 17, 106–109.
Petrak F. 1953 – Erythrogloeum n.gen., eine neue Gattung der Spphaeropsideen. Sydowia 7(5-6), 378–380.
Li WJ, McKenzie EH, Liu JK, Bhat DJ et al. 2020 – Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100, 279–801.
Sutton BC. 1980 – The Coelomycetes. Fungi imperfecti with pycnidia, acervuli and stromata. Commonwealth Mycological Institute, Kew.
Wijayawardene NN, Hyde KD, Dai DQ, Sánchez-García ML et al. 2022 – Outline of Fungi and fungus-like taxa–2021. Mycosphere 13(1), 53–453.
Entry by Chao Chen1,2,3
Edited by Kevin D. Hyde1,3 & Ishara S. Manawasinghe1
1Innovative Institute for Plant Health, College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, P.R. China.
2Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.
3Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand; School of Science, Mae Fah Luang University, Chiang Rai, Thailand.
Published online 2024-May 30.
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