Fungalpedia – Note 873, Aquaticola

 

Aquaticola W.H. Ho, C.K.M. Tsui, Hodgkiss & K.D. Hyde

Citation when using this data: Dong W et al. 2021 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Annulatascaceae, Annulatascales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Notes – Aquaticola was introduced to accommodate A. ellipsoidea and A. hyalomura (type), which were collected from wood submerged in freshwater (Ho et al. 1999b). Aquaticola ellipsoidea was later transferred to Atractospora based on original description and two reference sequences (Réblová et al. 2016). Aquaticola is characterized by white to dark brown ascomata with a cylindrical neck, broadly oblong to long cylindrical asci with rounded to truncate apex, with a small apical ring, and ellipsoidal, septate or aseptate ascospores, with or without a sheath (Ho et al. 1999b). However, the features are shown to be broad and Aquaticola is an obviously heterogeneous assemblage as four accepted species represent different morphotypes (Ho et al. 1999b, Tsui et al. 2003).

Aquaticola was placed in Annulatascaceae by Maharachchikumbura et al. (2016). It was later referred to Diaporthomycetidae genera incertae sedis, because of the unstable relationship of the type species A. hyalomura (R-038) in phylogenetic and evolutionary analyses (Zhang et al. 2017). However, Réblová et al. (2016) indicated that the specimen R038 collected by Campbell & Shearer (2004) was misidentified and confirmed by its author Carol Shearer. Thus, there is no evidence to infer the phylogenetic placement of A. hyalomura. Due to their heterogeneous morphology and lack of DNA evidence derived from all Aquaticola species, we follow Maharachchikumbura et al. (2016) and retain Aquaticola in Annulatascaceae until more evidence appears. The strain R-038 is named as Pseudoproboscisporaceae sp. 

Type species – Aquaticola hyalomura W.H. Ho, C.K.M. Tsui, Hodgkiss & K.D. Hyde.

Other accepted species: Species Fungorum – search Aquaticola.

 

References

Campbell J, Shearer CA. 2004 – Annulusmagnus and Ascitendus, two new genera in the Annulatascaceae. Mycologia 96, 822–833.

Ho WH, Tsui CKM, Hodgkiss IJ, Hyde KD. 1999b – Aquaticola, a new genus of Annulatascaceae from freshwater habitats. Fungal Diversity 3, 87–97.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016 – Families of Sordariomycetes. Fungal Diversity 79, 1–317.

Réblová M, Fournier J, Štěpánek V. 2016 – Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov. Mycological Progress 15, 1–18.

Tsui CKM, Hodgkiss IJ, Hyde KD. 2003 – Three new species of Aquaticola (Ascomycetes) from tropical freshwater habitats. Nova Hedwigia 77, 161–168.

Zhang H, Dong W, Hyde KD, Maharachchikumbura SSN et al. 2017 – Towards a natural classification of Annulatascaceae-like taxa: introducing Atractosporales ord. nov. and six new families. Fungal Diversity 85, 75–110.

 

Entry by

Wei Dong, Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, China, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence for Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Innovative Institute for Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, China

 

Published online 15 February 2021

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