Difference between revisions of "Cladosporium snafimbriatum"
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Ordo: Cladosporiales
Familia: Cladosporiaceae
Genus: Cladosporium
Name
Cladosporium snafimbriatum Wonjun Lee & Y.W. Lim sp. nov. – Wikispecies link – Pensoft Profile
Typification
Republic of Korea, Incheon, Ganghwa-gun, 37°36′37″N, 126°31′24″E, mudflat, 12 Jun 2019, M.S. Park & Y.W. Lim (holotype: SFC20230103-M65, stored in a metabolically inactive state).
Etymology
The epithet ‘snafimbriatum’, derived from Latin, refers to the fimbriate margin that appears on the SNA medium.
Description
Asexual morphology: Mycelium immersed, composed of septate, branched, hyaline to subhyaline, verruculose hyphae, nodulose, 3–7.8 μm wide. Conidiophores macronematous and micronematous, arising laterally or terminally from hyphae, sometimes reduced to conidiogenous cells, septate, solitary, erect or somewhat flexuous, non-nodulose, sometimes slightly geniculate, usually unbranched, up to 294 μm long, 2.7–4.2 μm wide, pale brown, verruculose to verrucose. Conidiogenous cells integrated, terminal or intercalary, cylindrical, 9.6–48 × 2.1–4.8 μm, bearing up to four slightly darkened and refractive conidiogenous loci. Ramoconidia 0–2(−3)-septate, subcylindrical, somewhat slightly clavate, 13.3–39.7 × 2.7–4.5 μm [av. (± SD) 22.5 (± 6.32) × 3.5 (± 0.43)], pale brown, verruculose to verrucose. Conidia solitary or forming branched chains, with up to five conidia in the terminal unbranched part, sometimes long and thickened neck between conidia, 0(−1) septate, pale brown, verruculose to verrucose, with protuberant, slightly darkened, and refractive hila. Small terminal conidia 0(−1) septate, ellipsoidal to subcylindrical, clavate, 4.7–8.3 × 2.9–4.5 μm [av. (± SD) 6.1 (± 0.81) × 3.5 (± 0.35)]. Intercalary conidia 0–1(−2) septate, ellipsoidal to subcylindrical, limoniform, clavate, sometimes obclavate, 6.5–14.4 × 2.7–3.9 μm [av. (± SD) 8.5 (± 1.82) × 3.3 (± 0.28)]. Secondary ramoconidia 0–2(−3)-septate, subcylindrical to cylindrical, 12.5–29.9 × 2.9–4.2 μm [av. (± SD) 18.8 (± 3.86) × 3.5 (± 0.34)].
Cultural characters: Colonies on PDA 47–52 mm diam after 14 d at 25 °C, grayish green (30B3) to deep green (30E3), reverse dark gray (1F1), umbonate with slightly elevated central colony, velvety, radially furrowed, wrinkled at the center, sometimes frequently wrinkled on the entire colony; margin undulated, white edge; aerial mycelia moderate, without prominent exudates, sporulation profuse. Colonies on MEA 40–48 mm diam after 14 d at 25 °C, greenish gray (29B2) to grayish green (30C3), reverse dull green (30D3) to dark green (30F3), slightly raised colony, velvety; margin undulated, white edge, sometimes hyaline, radially furrowed, wrinkled; aerial mycelia abundantly formed, dense, somewhat irregular, without prominent exudates, sporulation profuse. Colonies on OA 35–38 mm diam after 14 d at 25 °C, deep green (30E8), reverse concolorous, powdery, slightly floccose, flat; margin yellowish, regular; aerial mycelia sparsely formed in the center, regular, without prominent exudates, sporulation profuse. Colonies on SNA 25–30 mm diam after 14 d at 25 °C, deep green (30E8) to dark green (30F8), reverse concolorous to dark gray (1F8), powdery, slightly floccose in the center, flat; margin olive (2E8 to 2F8), fimbriate; aerial mycelia sparsely to dense, irregular, without prominent exudates, sporulation profuse.
Habitat and distribution
Isolated from mudflats; Western Korean seaside in Republic of Korea.
Additional cultures examined
Republic of Korea, Incheon, Ganghwa-gun, 37°36′36″N, 126°31′13″E, mudflat, 12 Jun 2019, M.S. Park & Y.W. Lim (SFC20230103-M63, stored in a metabolically inactive state); Incheon, Ganghwa-gun, 37°36′36″N, 126°31′13″E, mudflat, 12 Jun 2019, M.S. Park & Y.W. Lim (SFC20230103-M64, stored in a metabolically inactive state).
Notes
This species has a distinguishing characteristic of forming a fimbriate margin on the SNA medium. Cladosporium snafimbriatum is phylogenetically distant with identities of 94.87% for act and 90.73% for tef1, compared to C. allicinum (CBS 121624) (Bensch et al. 2012[1]). Cladosporium snafimbriatum and C. allicinum (Bensch et al. 2012[1]) belong to the same clade and their conidial structures are similar (Bensch et al. 2012[1]). However, the conidiophores of C. snafimbriatum are rougher than those of C. allicinum, and small terminal conidia and intercalary conidia are septate (aseptate in C. allicinum) (Bensch et al. 2012[1]). Cladosporium snafimbriatum grows faster on PDA (22–32 mm), MEA (21–32 mm), and OA (20–32 mm) than C. allicinum (Bensch et al. 2012[1]).
Original Description
- Lee, W; Kim, J; Seo, C; Lee, J; Kim, S; Cho, Y; Lim, Y; 2023: Diversity of Cladosporium (Cladosporiales, Cladosporiaceae) species in marine environments and report on five new species MycoKeys, 98: 87-111. doi
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Other References
- ↑ 1.0 1.1 1.2 1.3 1.4 Bensch K, Braun U, Groenewald J, Crous P (2012) The genus Cladosporium.Studies in Mycology72: 1–401. https://doi.org/10.3114/sim0003
