Fusarium sulawense N. Maryani, Sand.
Creators: name: Maryani, N.
name: Sandoval-Denis, M.
name: Lombard, L.
name: Crous, P. W.
name: Kema, G. H. J.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Hypocreales
Nectriaceae
Fusarium
Fusarium sulawense

description: <i>Fusarium sulawense</i> N. Maryani, Sand. -Den., L. Lombard, Kema &amp; Crous, <i>sp. nov.</i> — MycoBank MB 828963; Fig. 9 <i>Etymology</i>. Name refers to Sulawesi, the island from where this species was collected in Indonesia. <i>Typus</i>. INDONESIA, Desa Seli, Kecamatan Bengo, Bone, Sulawesi Selatan (E 120°1'12.8" S 4°37'26"), on infected pseudostem of <i>Musa acuminata</i> var. Pisang Cere (AAA), 12 Aug. 2015, <i>N. Maryani</i> (holotype specimen and culture, InaCC F 940, preserved in metabolically inactive state). Sporulation abundant from conidiophores carried on aerial mycelium and from sporodochia. <i>Conidiophores</i> on aerial mycelium abundant on PDA and SNA, less frequent on CLA, septate, irregularly or verticillately branched; <i>conidiogenous cells</i> mono- or polyphialidic, subulate to subcylindrical, smooth- and thin-walled, (8.5–)14–22.5(–27) × (2–)2.5–4(–4.5) µm (av. 18 × 3 µm), formed singly, laterally or terminally, or more often in groups of 2–3 cells, sometimes proliferating percurrently, collarettes and periclinal thickening inconspicuous or absent; <i>conidia</i> of one type (macroconidia), falcate and multiseptate, apical cells papillate, basal cells indistinct or foot-shaped, 3–5(–9)-septate, formed on both mono- and polyphialides, 3-septate conidia, 20.5–47.5(–55) × 3.5–5 µm; 5-septate conidia, (33.5–)39.5–48(–50.5) × (4–) 4.5–5.5 µm; 6-sep- tate conidia, 51.5 × 6 µm; 9-septate conidia, 67 × 5.5 µm; av. (20.5–)36–51(–67.5) × (3.5–)4–5.5(–6) µm. <i>Sporodochia</i> formed rarely on CLA after 7 d, pale orange; <i>conidiophores</i> in sporodochia unbranched or irregularly branched, densely packed, bearing terminal clusters of 2–5 conidiogenous cells; <i>conidiogenous cells</i> monophialidic, short ampulliform, smooth- and thin-walled, (8.5–)9–11.5(–13) × (3–)3.5–5(–5.5) µm (av. 10.5 × 4.5 µm) with a minute collarette and inconspicu- ous periclinal thickening; <i>sporodochial conidia</i> falcate, apical cells gently curved, papillate; basal cells slightly curved, footshaped, (3–)5(–6)-septate: 3-septate conidia, (29.5–)30–44 × 4–4.5 µm; 4-septate conidia, 30 × 5.5 µm; 5-septate conidia, (30–)36–41.5(–43.5) × (3.5–)4–5(–5.5) µm; 6-septate conidia 43.5 × 5 µm; av. (30–)36–41.5(–44) × (3.5–)4–5(–5.5) µm. <i>Chlamydospores</i> not observed. Culture characteristics — Colony on PDA showing optimal growth at 25 ° C with an average growth rate of 5.2–6.0 mm/d. Colony reverse rosy buff becoming white towards the margins. Colony surface dry, cottony, saffron.Aerial mycelium abundant, cottony, with high sporulation and lacking exudates. Geography &amp; Host — Bone, South Sulawesi, <i>Musa acuminata</i> var. Pisang Cere (AAA). Pathogenicity — Non-pathogenic on Cavendish (AAA). <i>Additional material examined</i>. INDONESIA, Desa Sungai Birah, Kecamatan Pamukan Barat, Kota Baru, Kalimantan Selatan (E 115°59'982" S 2°22'883"), on infected pseudostem of <i>Musa</i> var. Pisang Hawa (ABB), 19 June 2014, <i>N. Maryani</i> (InaCC F 964). Notes — <i>Fusarium sulawense</i> is relatively fast growing (av.5.2– 6.0 mm/d) compared to its sister species in the Incarnatum clade, FIESC-34 (av. 1.3–2.2 mm /d). Members of this species were recovered from different banana varieties in the Kalimantan and Sulawesi islands of Indonesia.
description: Published as part of <i>Maryani, N., Sandoval-Denis, M., Lombard, L., Crous, P. W. &amp; Kema, G. H. J., 2019, New endemic Fusarium species hitch-hiking with pathogenic Fusarium strains causing Panama disease in small-holder banana plots in Indonesia, pp. 48-69 in Persoonia 43</i> on page 65, DOI: 10.3767/persoonia.2019.43.02, http://zenodo.org/record/3565708