Fungalpedia – Note 1050, Aigialus

 

Aigialus. Kohlm. & S. Schatz.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Aigialaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Aigialus, the type genus of Aigialaceae is frequently found on mangrove wood in both tropical to subtropical regions (Suetrong et al. 2009). The genus Aigialus was initially accommodated in Melanommatales (sensu Barr 1979), based on the trabeculate pseudoparaphyses, but without assigning it to any family in the Dothideomycetes (Kohlmeyer & Schatz 1985), based on the possession of a refractive, J- apical ring in the ascus. Hawksworth et al. (1995) assigned the genus to Massariaceae in the order Pyrenulales. Liew et al. (2000) showed that trabeculate pseudoparaphyses were not important at the ordinal level. According to single gene sequence analysis, Tam et al. (2003), referred Aigialus to Pleosporales, and this was followed by Kirk et al. (2008). Classification of this genus is resolved with a higher number of taxon sampling of Dothideomycetes (Schoch et al. 2009, Suetrong et al. 2009, Zhang et al. 2012). There are five species accepted in the genus: A. grandis, A. mangrovei, A. parvus, A. rhizophorae and A. striatispora (Jones et al. 2009). During our investigation of marine mangrove fungi from Thailand we collected three species; A. grandis, A. mangrovei and A. parvus.

Type species: Aigialus grandis Kohlm. & S. Schatz, Trans. Br. mycol. Soc. 85(4): 699 (1986) [1985].

Other accepted species: Species Fungorum – search Aigialus.

 

image

 

Figure 1 – Aigialus grandis (MFLUCC 15-1281). a Host. b Ascomata on host.
c, d Sections of ascomata. e. Peridum. d. Trabeculate pseudoparaphyses. e–g. Immature and mature asci. j–j. Immature to mature ascospores. k. Germinating ascospore. Scale bars: b–d = 500 μm, f–h = 200 μm, e, i–l = 50 μm.

 

References

Barr ME. 1979 – On the Massariaceae in North America; Mycotaxon 9, 17–37

Hawksworth DL, Kirk PM, Sutton BC, Pegler DN. 1995 – Ainsworth & Bisby’s dictionary of the fungi, 8th edn. CAB International, Wallingford.

Jones EBG, Sakayaroj J, Suetrong S, Somrithipol S, Pang KL. 2009 – Classification of marine Ascomycota, anamorphic taxa and Basidiomycota. Fungal Diversity 35, 1–187.

Kirk PM, Cannon PF, Minter DW, Stalpers JA. 2008 – Ainsworth & Bisby’s dictionary of the fungi, 10th edn. CABI, Wallingford.

Kohlmeyer J, Schatz S. 1985 – Aigialus gen. nov. (Ascomycetes) with two new marine species from mangroves. Transactions of the British Mycological Society 85, 699–707.

Liew ECY, Aptroot A, Hyde, KD. 2000 – Phylogenetic significance of the pseudoparaphyses in Loculoascomycete taxonomy. Molecular Phylogeny and Evolution 16, 392–402.

Schoch CL, Crous PW, Groenewald JZ, Boehm EWA et al. 2009 – A class-wide phylogenetic assessment of Dothideomycetes. Studies in Mycology 64, 1–15.

Suetrong S, Schoch CL, Spatafora JW, Kohlmeyer J. 2009 – Molecular systematics of the marine Dothideomycetes. Studies in Mycology 64, 155–173.

Tam WY, Pang KL, Jones EBG. 2003 – Ordinal placement of selected marine Dothideomycetes inferred from SSU ribosomal DNA sequence analysis. Botanica Marina 4, 487–494.

Zhang Y, Crous PW, Schoch CL, Hyde KD. 2012 – Pleosporales. Fungal Diversity 53, 1–221.

 

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 Rai57100, 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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