Pleosporales » Testudinaceae

Angustospora

Angustospora Abdel-Aziz

Index Fungorum number: IF 551714; Facesoffungi number: FoF 01632

 

Saprobic on submerged wood. Sexual morph: Ascomata solitary, immersed to erumpent, uniloculate, globose to subglobose, glabrous, dark brown to black, coriaceous to sub-carbonaceous, with ostiolate papilla. Ostiole central, circular, periphysate. Peridium two-layered, outer layer comprising dark brown to black cells of textura angularis, inner layer comprising hyaline, thick-walled, flattened cells of textura angularis. Pseudoparaphyses numerous, trabeculate, hyaline, distantly septate, branched, persistent, within a gelatinous matrix and anastomosing above asci. Asci 8-spored, bitunicate, fissitunicate, clavate, short pedicellate, apically rounded, with a wide, shallow ocular chamber and faint ring. Ascospores overlapping biseriate, ellipsoidal with pointed ends, straight or curved, dark brown to black, septate, polar cells lighter when young and apical cells with two walls, mostly symmetrical, surrounded by thin, gelatinous, striate layer (Li et al. 2016). Asexual morph: Undetermined.

 

Type species: Angustospora nilensis Abdel-Aziz

 

Notes: Angustospora was introduced to accommodate the freshwater species A. nilensis collected from Egypt (Li et al. 2016). Angustospora is reminiscent of Caryospora in having large ascospores with a median septum and two additional septa near poles (Ariyawansa et al. 2015; Li et al. 2016; Jayasiri et al. 2019). However, Angustospora differs from the latter in having smaller ascomata, ellipsoidal ascospores with paler end cells when young and two-walled apical cells, and surrounded by gelatinous, striate layer (Li et al. 2016). Phylogenetic analyses placed Angustospora and Caryospora in Testudinaceae and Caryosporaceae, respectively (Li et al. 2016; Wanasinghe et al. 2017). Angustospora appears exclusively saprobic in freshwater habitats.

 

List of freshwater Angustospora species

Angustospora nilensis Abdel-Aziz, Fungal Diversity 78: 54 (2016)

Freshwater distribution: Egypt (Li et al. 2016)

 

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

Jayasiri SC, Hyde KD, Jones EBG, McKenzie EHC, Jeewon R, Phillips AJL, Bhat JD, Wanasinghe DN, Liu JK, Lu YZ, Kang JC, Xu J, Karunarathna SC (2019) Diversity, morphology and molecular phylogeny of Dothideomycetes on decaying wild seed pods and fruits. Mycosphere 10:1–186. https://doi.org/10.5943/mycosphere/10/1/1

Li GJ, Hyde KD, Zhao RL, Hongsanan S, Abdel-Aziz FA, Abdel-Wahab MA, Alvarado P, Alves-Silva G, Ammirati JF, Ariyawansa HA, Baghela A, Bahkali AH, Beug M, Bhat DJ, Bojantchev D, Boonpratuang T, Bulgakov TS, Camporesi E, Boro MC, Ceska O, Chakraborty D, Chen JJ, Chethana KWT, Chomnunti P, Consiglio G, Cui BK, Dai DQ, Dai YC, Daranagama DA, Das K, Dayarathne MC, De Crop E, De Oliveira RJV, de Souza CAF, de Souza JI, Dentinger BTM, Dissanayake AJ, Doilom M, Drechsler-Santos ER, Ghobad-Nejhad M, Gilmore SP, Góes-Neto A, Gorczak M, Haitjema CH, Hapuarachchi KK, Hashimoto A, He MQ, Henske JK, Hirayama K, Iribarren MJ, Jayasiri SC, Jayawardena RS, Jeon SJ, Jerônimo GH, Jesus AL, Jones EBG, Kang JC, Karunarathna SC, Kirk PM, Konta S, Kuhnert E, Langer E, Lee HS, Lee HB, Li WJ, Li XH, Liimatainen K, Lima DX, Lin CG, Liu JK, Liu XZ, Liu ZY, Luangsa-ard JJ, Lücking R, Lumbsch HT, Lumyong S, Leaño EM, Marano A V., Matsumura M, McKenzie EHC, Mongkolsamrit S, Mortimer PE, Nguyen TTT, Niskanen T, Norphanphoun C, O’Malley MA, Parnmen S, Paw┼éowska J, Perera RH, Phookamsak R, Phukhamsakda C, Pires-Zottarelli CLA, Raspé O, Reck MA, Rocha SCO, de Santiago ALCMA, Senanayake IC, Setti L, Shang QJ, Singh SK, Sir EB, Solomon K V., Song J, Srikitikulchai P, Stadler M, Suetrong S, Takahashi H, Takahashi T, Tanaka K, Tang LP, Thambugala KM, Thanakitpipattana D, Theodorou MK, Thongbai B, Thummarukcharoen T, Tian Q, Tibpromma S, Verbeken A, Vizzini A, Vlasák J, Voigt K, Wanasinghe DN, Wang Y, Weerakoon G, Wen HA, Wen TC, Wijayawardene NN, Wongkanoun S, Wrzosek M, Xiao YP, Xu JC, Yan JY, Yang J, Da Yang S, Hu Y, Zhang JF, Zhao J, Zhou LW, Peršoh D, Phillips AJL, Maharachchikumbura SSN (2016) Fungal diversity notes 253–366: taxonomic and phylogenetic contributions to fungal taxa. Fungal Divers 78:1–237. https://doi.org/10.1007/s13225-016-0366-9

Wanasinghe D (2017) Saprobic Dothideomycetes in Thailand: Muritestudina gen. et sp. nov. (Testudinaceae) a new terrestrial pleosporalean ascomycete, with hyaline and muriform ascospores. Stud Fungi 2:219–234. https://doi.org/10.5943/sif/2/1/26

 

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