Genus

Calophoma

Species

sandfjordenica

Author

Crous & Rämä

Class

Dothideomycetes

Order

Pleosporales

Family

Didymellaceae

Synonymy:

Description

Calophoma Qian Chen & L. Cai, Stud. Mycol. 82: 192 (2015)

Type species: Calophoma clematidina (Thüm.) Qian Chen & L. Cai, Stud. Mycol. 82: 192 (2015)

Marine species: Calophoma sandfjordenica Crous & Rämä, Persoonia 42: 361 (2019)

Description from Crous et a. (2019):

Sexual morph: Undetermined. Asexual morph: Conidiomata pycnidial, solitary, black, globose, immersed to erumpent, ostiolate, 200–300 mm diam., wall of 3–6 layers of brown textura angularis. Micropycnidia present. Conidiophores reduced to conidiogenous cells lining the inner cavity, ampulliform to doliiform, hyaline, smooth, phialidic with periclinal thickening, 5–10 × 5–7 mm. Conidia subcylindrical, straight to curved, ends obtuse, hyaline, smooth, 0(–1)-septate, guttulate, (8–)10–14(–18) × (2–)3 mm. Culture characteristics: Colonies flat, spreading, with moderate, aerial mycelium and smooth, lobate margin, covering dish after 2 wk at 25 °C. On MEA surface dirty white, reverse umber with patches of sienna. On PDA surface and reverse hazel. On OA surface isabelline.

Image: Calophoma sandfjordenica. (a) Habitat of the fungus. (b) Conidiomata on potato dextrose agar. (c, d) conidiogenous cells. (e) Conidia. Scale bars: c-e = 10 μm. Photo reproduced after Crous, Groenewald and Rämä in Crous et al. (2019), https://doi.org/10.3767/persoonia.2021.47.06) that is distributed under the Creative Commons CC BY-NC-ND licence. © 2019 Naturalis Biodiversity Center & Westerdijk Fungal Biodiversity Institute

Type & Location:

Holotype CBS H-23963, culture ex-type 050aE2.1 = CPC 36272 = CBS 145571. Sandfjorden, Berlevåg, Finnmark, Norway; Sequences from the type: ITS NR_165553, LSU MK876417, actA MK876453, rpb2 MK876478

Other Specimens:

Substratum:

Driftwood, also isolated from biocrust on volcanic rock in Iceland.

Habitat:

Distribution:

Norway, Iceland

Pertinent Literature:

(1) Crous PW, Carnegie AJ, Wingfield MJ, Sharma R, Mughini G, Noordeloos, +170 authors, Groenewald JZ (2019). Fungal Planet description sheets: 868–950. Persoonia 42: 291-473. doi: 10.3767/persoonia.2021.47.06; (2) Pushkareva E, Baumann K, Tu Van A, Mikhailyuk T, Baum C, Hrynkiewicz K, Demchenko E, Thiem D, Köpcke T, Karsten U, Leinweber P (2021). Diversity of microbial phototrophs and heterotrophs in Icelandic biocrusts and their role in phosphorus-rich Andosols. Geoderma 386. doi: 10.1016/j.geoderma.2020.114905

Comments:

This is the first species of Calophoma that has been isolated and described from the marine habitat. Calophoma sandfjordenica has been isolated from driftwood in three locations at the open ocean along the Northern Norwegian shoreline. The fungus was also isolated from inland volcanic biocrust that indicates that this is not a strictly marine fungus (Pushkareva et al. 2021).

Images

Fig 1

Calophoma

sandfjordenica

Crous & Rämä

Dothideomycetes

Pleosporales

Didymellaceae

Calophoma sandfjordenica Location

Address

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