Fungalpedia – Note 983, Nigrograna

 

Nigrograna. Gruyter, Verkley & Crous.

Citation when using this data: de Silva NI et al. 2022 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank., Fig 1

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

Nigrograna is characterized by depressed globose to globose, immersed to erumpent, less commonly superficial ascomata, papillate ostiolar necks, clavate, bitunicate, fissitunicate asci and fusoid to narrowly ellipsoid, 1–3-euseptate, pale to chocolate brown ascospores (Jaklitsch & Voglmayr 2016). The asexual morph is characterized by pycnidial conidiomata, oblong, cylindrical or allantoid, sometimes ellipsoid, hyaline, 1-celled, smooth conidia (de Gruyter et al. 2012, Jaklitsch & Voglmayr 2016). Nigrograna species exhibit diverse fungal life-styles in nature as saprobic, endophytic and fungicolous in plant hosts while one was a human pathogen (de Gruyter et al. 2012, Kolarik et al. 2016, Jaklitsch & Voglmayr 2016, Hyde et al. 2017, Tibpromma et al. 2017, Zhao et al. 2018).

Type species: Nigrograna mackinnonii (Borelli) Gruyter, Verkley & Crous, in Gruyter, Woudenberg, Aveskamp, Verkley, Groenewald & Crous, Stud. Mycol. 75: 31 (2012) [2013].

Other accepted species: Species Fungorum – search Nigrograna.

 

image

 

Figure 1 – Nigrograna thymi (MFLU 18–2648) a The specimen. b, c Appearance of ascomata on host surface. d Vertical section through ascoma. e Neck. f Peridium. g Pseudoparaphyses. h–j Asci. k–n Immature and mature ascospores. Scale bars: d, e = 80 μm, f = 10 μm, h–j = 20 μm, k–n = 10 μm.

 

References

de Gruyter J, Woudenberg JHC, Aveskamp MM, Verkley GJM et al. 2012 – Redisposition of phoma-like anamorphs in Pleosporales. Studies in Mycology 75, 1–36.

Hyde KD, Norphanphoun C, Abreu VP, Bazzicalupo A et al. 2017 – Fungal diversity notes 603–708: taxonomic and phylogenetic notes on genera and species. Fungal Diversity 87, 1–235.

Jaklitsch WM, Voglmayr H. 2016 – Hidden diversity in Thyridaria and a new circumscription of the Thyridariaceae. Studies in Mycology 85, 35–64.

Kolarik M, Spakowicz DJ, Gazis R, Shaw J et al. 2016 – Biatriospora (Ascomycota: Pleosporales) is an ecologically diverse genus including facultative marine fungi and endophytes with biotechnological potential. Plant Systematics and Evolution 303, 35–50.

Tibpromma S, Hyde KD, Jeewon R, Maharachchikumbura SSN et al. 2017 – Fungal diversity notes 491–602: taxonomic and phylogenetic contributions to fungal taxa. Fungal Diversity 83, 1–261.

Zhao YZ, Zhang ZF, Cai L, Peng JW, Liu F. 2018 – Four new filamentous fungal species from newly-collected and hive stored bee pollen. Mycosphere 9, 1089–1116.

 

Entry by

Nimali Indeewari de Silva, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

 

Published online 18 November 2022

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