Neocosmospora

Fungalpedia – Note 1073, Neocosmospora

 

Neocosmospora E.F. Sm

Citation when using this data: Dayarathne MC et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Nectriaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

The genus Neocosmospora was established by Smith (1899) for a single species, Neocosmospora vasinfecta. Since then, a number of other species have been added to the genus (Cannon & Hawksworth 1984). Neocosmospora is characterized by perithecial, orange to red, rarely dark brown, globose to pyriform, ostiolate ascomata with a short neck lined with periphyses, peridium composed of an outer pigmented layer, sometimes covered with rhizoidal hyphae, and hyaline inner layers, mostly with periphysoids, 8-spored, cylindrical, rarely clavate asci with a short stalk and usually lacking apical structures and uniseriate, rarely biseriate, pale brown to almost hyaline, 1-(2-) celled, globose to ellipsoidal, ornamented ascospores (Cannon & Hawksworth 1984). The genus Neocosmospora has been a highly renowned fungal group for more than 100 years, mainly because it contains significant number of plant pathogenic species (Sandoval-Denis & Crous 2018, Sandoval-Denis et al. 2018). It includes causative agents of fruit-rot, root-rot and seedling damping-off, affecting diverse plant hosts (Leslie & Summerell 2006, Domsch et al. 2007, Nalim et al. 2011).

Type species: Neocosmospora vasinfecta E.F. Sm., Bull. U.S. Department of Agriculture 17: 45 (1899).

Other accepted species: Species Fungorum – search Neocosmospora.

 

 

Figure 1 – Neocosmospora rhizophorae (MFLU 17-2588, holotype). a, b Ascomata superficial on the dead wood. c Section through an ascoma. d Peridium. e Paraphyses. f, g Asci. h–j Ascospores. k Culture on sea water PDA. Scale bars: b, c = 200 μm, d, e–g = 50 μm, h–j = 10 μm.

 

References

Cannon PF, Hawksworth L. 1984 – A revision of the genus Neocosmospora (Hypocreales). Transactions of the British Mycological Society 82, 673–688.

Domsch KH, Gams W, AndersonT-H. 2007 – Compendium of Soil Fungi, 2nd Taxonomically Revised Edition by W. Gams. Eching, Germany, IHW-Verlag.

Leslie JF, Summerell BA. 2006 – Fusarium laboratory workshops – A recent history. Mycotoxin Research 22, 73–74.

Nalim FA, Samuels GJ, Wijesundera RL, Geiser DM. 2011 – New species from the Fusarium solani species complex derived from perithecia and soil in the Old-World tropics. Mycologia 103, 1302–1330.

Sandoval-Denis M, Crous PW 2018 – Removing chaos from confusion: assigning names to common human and animal pathogens in Neocosmospora.Persoonia: Molecular Phylogeny and Evolution of Fungi 41, 109–129. 

Sandoval-Denis M, Guarnaccia V, Polizzi G. Crous PW 2018 – Symptomatic Citrus trees reveal a new pathogenic lineage in Fusarium and two new Neocosmospora species. Persoonia: Molecular Phylogeny and Evolution of Fungi 40, 1–25.

Smith EF. 1899 – Wilt disease of cotton, watermelon and cowpea. United States Department of Agriculture Bulletin 17, 1–53.

 

Entry by

Monika Dayarathne, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agro forestry Centre East and Central Asia Office, 132 Lanhei Road, Kunming 650201, China, Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China

 

Published online 13 January 2020

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