Mycosphaerellales » Mycosphaerellaceae » Cercosporidium

Cercosporidium chaetomium

Scolicotrichum euphorbiae Tracy & Earle, Bull. Torrey bot. Club 23(5): 209 (1896).

           Index Fungorum number: IF 152313; Facesoffungi number: FoF 11136, Fig. 1

Description: see Videira et al. (2017).

Material considered: see Videira et al. (2017).

Fig. 1 Cercosporidium chaetomium (CBS 142177, holotype; re-drawn from Videira et al. 2017). a–d Observations in vivo. a Leaf spot. b, c Conidiophores, conidiogenous cells and conidia. d Single conidia. e, f Observations in vitro. e Conidiophore and conidiogenous cell. f Conidia. Scale bars = 10 μm.

Importance and distribution

Species of Cercosporidium are foliicolous. There are 66 records of Cercosporidium in Index Fungorum (2022), but many have been transferred to other genera such as Cercospora, Clarohilum, Fusicladium, Fusoidiella, Graminopassalora, Mycovellosiella, Nothopassalora, Passalora, Phaeoisariopsis and Pseudocercospora. Cercosporidium comprises 10 species known on several plant families including Apiaceae, Apocynaceae, Araceae, Asteraceae, Balsaminaceae, Boraginaceae, Cornaceae, Dioscoreaceae, Euphorbiaceae, Fabaceae, Leguminosae, Nyctaginaceae, Phyllanthaceae and Poaceae. Cercosporidium has been reported from Africa (Algeria, Tanzania), Asia (China, India), Europe (Bulgaria, Cyprus), North America (Canada, Caribbean, the United States) and South America (Brazil, Colombia, Venezuela). DNA sequence data is necessary for species delimitation due to complexity of the genus.

 

References

Baker WA, Partridge E, Morgan-Jones G. 2000 – Notes on hyphomycetes. LXXVIII. Asperisporium sequoiae, the causal organism of conifer needle blight, reclassified in Cercosporidium, with comments on the status of the genus. Mycotaxon 76, 247–256.

Braun U, Nakashima C, Crous PW. 2013 – Cercosporoid fungi (Mycosphaerellaceae) 1. Species on other fungi, Pteridophyta and Gymnospermae. IMA Fungus 4, 265–345.

Braun U. 1995 – A monograph of Cercosporella, Ramularia and allied genera (phytopathogenic Hyphomycetes) Vol. 1. IHW-Verlag Eching, 1–333.

Castañeda RF, Braun U. 1989 – Cercospora and allied genera of Cuba (I). Cryptogamic Botany 1, 42–55.

Crous PW, Braun U. 2003 – Mycosphaerella and its anamorphs: 1. Names published in Cercospora and Passalora. Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands.

Deighton FC. 1967 – Studies on Cercospora and allied genera. II. Passalora, Cercosporidium, and some species of Fusicladium on Euphorbia. Mycological Papers 112,1–80.

Earle FS. 1901– Some fungi from Puerto Rico. Muhlenbergia 1, 10–17

Pons N, Sutton BC. 1996 – Cercospora and similar fungi on Heliotropium weeds. Mycological Research 100, 815–820.

Videira SIR, Groenewald JZ, Nakashima C, Braun U, Barreto RW, de Wit PJGM, Crous PW. 2017 – Mycosphaerellaceae - Chaos or clarity? Studies in Mycology 87, 257–421.

Von Arx JA. 1983 – Mycosphaerella and its anamorphs. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen: Series C: Biological and Medical Sciences 86, 15–54.

 

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