Pleosporales

Aquasubmersaceae

Aquasubmersaceae A. Hashim. & Kaz. Tanaka, in Hashimoto et al., Persoonia 39: 56 (2017)

Index Fungorum number: IF 819235; Facesoffungi number: FoF 08160, 2 species.

 

Saprobic on woody plants, submerged plant substrate. Sexual morph: Ascomata scattered or grouped, semi-immersed, subglobose, with a papillate ostiolar neck. Peridium comprises of flattened, thin-walled, polygonal cells. Hamathecium comprising septate, branched, pseudoparaphyses. Asci 8-spored, bitunicate, cylindrical, with a short pedicel. Ascospores broadly fusiform with rounded ends, hyaline, septate. Asexual morph: Coelomycetous. Conidiomata pycnidial, globose to ellipsoidal, solitary or scattered, semi-immersed to superficial, dark brown to black, ostiolate. Conidiophores reduced. Conidiogenous cells holoblastic, lageniform, hyaline, smooth, formed from the inner cells of the pycnidial wall. Conidia holoblastic, ellipsoidal, hyaline, aseptate, thin- and smooth-walled, or guttulate (adapted from Zhang et al. 2012, Hashimoto et al. 2017)

 

Type: Aquasubmersa K.D. Hyde & Huang Zhang.

 

Notes:The family was established by Hashimoto et al. (2017), with the generic type Aquasubmersa. Based on the description of Aquasubmersa japonica provided by Ariyawansa et al. (2015), it has 2–4.5 μm pseudoparaphyses. However, we could not see clearly from the photoplate whether it is cellular or trabeculate pseudoparaphyses. Molecular studies using LSU and SSU sequence data placed Aquasubmersa in Pleosporales (Zhang et al. 2012, Ariyawansa et al. 2015). Hashimoto et al. (2017) indicated that Aquasubmersa formed a sister clade to the clade containing Lophiotremataceae Tanaka and Cryptocoryneaceae. Morphologically, Lophiotremataceae is similar to Aquasubmersaceae in having ascomata with papillate ostiolar neck and pycnidial conidiomata. However, Lophiotremataceae differs from Aquasubmersaceae in having ascomata with a compressed, slit-like ostiole. Cryptocoryneaceae and Hermatomycetaceae have sporodochial conidiomata and cheiroid or lenticular conidia, while Aquasubmersaceae has ellipsoidal conidia. Therefore, Hashimoto et al. (2017) introduced Aquasubmersaceae to accommodate Aquasubmersa. (Notes from Hongsanan et al. 2020)

 

References

Ariyawansa HA, Hyde KD, Jayasiri SC, Buyck B, Chethana KWT, Dai DQ, Dai YC, Daranagama DA, Jayawardena RS, Lücking R, Ghobad-Nejhad M, Niskanen T, Thambugala KM, Voigt K, Zhao RL, Li GJ, Doilom M, Boonmee S, Yang ZL, Cai Q, Cui YY, Bahkali AH, Chen J, Cui BK, Chen JJ, Dayarathne MC, Dissanayake AJ, Ekanayaka AH, Hashimoto A, Hongsanan S, Jones EBG, Larsson E, Li WJ, Li QR, Liu JK, Luo ZL, Maharachchikumbura SSN, Mapook A, McKenzie EHC, Norphanphoun C, Konta S, Pang KL, Perera RH, Phookamsak R, Phukhamsakda C, Pinruan U, Randrianjohany E, Singtripop C, Tanaka K, Tian CM, Tibpromma S, Abdel-Wahab MA, Wanasinghe DN, Wijayawardene NN, Zhang JF, Zhang H, Abdel-Aziz FA, Wedin M, Westberg M, Ammirati JF, Bulgakov TS, Lima DX, Callaghan TM, Callac P, Chang CH, Coca LF, Dal-Forno M, Dollhofer V, Fliegerová K, Greiner K, Griffith GW, Ho HM, Hofstetter V, Jeewon R, Kang JC, Wen TC, Kirk PM, Kytövuori I, Lawrey JD, Xing J, Li H, Liu ZY, Liu XZ, Liimatainen K, Lumbsch HT, Matsumura M, Moncada B, Nuankaew S, Parnmen S, de Azevedo Santiago ALCM, Sommai S, Song Y, de Souza CAF, de Souza-Motta CM, Su HY, Suetrong S, Wang Y, Wei SF, Wen TC, Yuan HS, Zhou LW, Réblová M, Fournier J, Camporesi E, Luangsa-ard JJ, Tasanathai K, Khonsanit A, Thanakitpipattana D, Somrithipol S, Diederich P, Millanes AM, Common RS, Stadler M, Yan JY, Li XH, Lee HW, Nguyen TTT, Lee HB, Battistin E, Marsico O, Vizzini A, Vila J, Ercole E, Eberhardt U, Simonini G, Wen HA, Chen XH, Miettinen O, Spirin V, Hernawati (2015) Fungal diversity notes 111–252—taxonomic and phylogenetic contributions to fungal taxa. Fungal Divers 75:27–274. https://doi.org/10.1007/s13225-015-0346-5

Hashimoto A, Matsumura M, Hirayama K, Tanaka K (2017) Revision of Lophiotremataceae (Pleosporales, Dothideomycetes): Aquasubmersaceae, Cryptocoryneaceae, and Hermatomycetaceae fam. nov. Persoonia Mol Phylogeny Evol Fungi 39:51–73. https://doi.org/10.3767/persoonia.2017.39.03

Hongsanan S, Hyde KD, Phookamsak R, Wanasinghe DN, McKenzie EHC, Sarma V V., Boonmee S, Lücking R, Bhat DJ, Liu NG, Tennakoon DS, Pem D, Karunarathna A, Jiang SH, Jones EBG, Phillips AJL, Manawasinghe IS, Tibpromma S, Jayasiri SC, Sandamali DS, Jayawardena RS, Wijayawardene NN, Ekanayaka AH, Jeewon R, Lu YZ, Dissanayake AJ, Zeng XY, Luo ZL, Tian Q, Phukhamsakda C, Thambugala KM, Dai DQ, Chethana KWT, Samarakoon MC, Ertz D, Bao DF, Doilom M, Liu JK, Pérez-Ortega S, Suija A, Senwanna C, Wijesinghe SN, Konta S, Niranjan M, Zhang SN, Ariyawansa HA, Jiang HB, Zhang JF, Norphanphoun C, de Silva NI, Thiyagaraja V, Zhang H, Bezerra JDP, Miranda-González R, Aptroot A, Kashiwadani H, Harishchandra D, Sérusiaux E, Aluthmuhandiram JVS, Abeywickrama PD, Devadatha B, Wu HX, Moon KH, Gueidan C, Schumm F, Bundhun D, Mapook A, Monkai J, Chomnunti P, Suetrong S, Chaiwan N, Dayarathne MC, Yang J, Rathnayaka AR, Bhunjun CS, Xu JC, Zheng JS, Liu G, Feng Y, Xie N (2020) Refined families of Dothideomycetes: Dothideomycetidae and Pleosporomycetidae. Mycosphere 11:1553–2107. https://doi.org/10.5943/MYCOSPHERE/11/1/13

Zhang H, Hyde KD, Mckenzie EHC, Bahkali AH, Zhou D (2012) Sequence data reveals phylogenetic affinities of Acrocalymma aquatica sp. nov., Aquasubmersa mircensis gen. et sp. nov. and Clohesyomyces aquaticus (freshwater coelomycetes). Cryptogam Mycol 33:333–346. https://doi.org/10.7872/crym.v33.iss3.2012.333

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus