Hypocreales » Cordycipitaceae » Lecanicillium

Lecanicillium dimorphum

Lecanicillium dimorphum (J.D. Chen) Zare & W. Gams, Nova Hedwigia 73: 24 (2001).

Index Fungorum number: IF484540, Facesoffungi number: FoF09618, FIGURE 5.

 

Culture characteristics: — Colonies on PDA reaching 24–42 mm diam. in 10 days at 24 °C, raised, filamentous, margin entire, surface white, reverse cream to brownish cream or red in PDA. Mycelium hyaline, immature aseptate and hyphae becoming septate and 1.3–3.9 µm wide when mature. Conidiogenous cells present in two types, phialides and aphanophialides. Phialides are aculeate, persistent forming from prostrate hyphae, solitary or 2–5 in terminal whorls, 12 µm long, 5.5–4.5 µm wide at the base, gradually tapering towards apex, often branching into short secondary phialides. Aphanophialides are short, inflated, caducous 7.5 × 2.5 µm, producing solitary conidia, forming small and hardly visible denticles. Conidia have two types, microconidia and macroconidia forming from phialides. macroconidia falcate, 9.7 × 2.9 µm, with sharply pointed ends microconidia oval to ellipsoidal, 3× 1.9 µm, only produced from aphanophialides,

Known hosts and substrates: — Agaricus bisporus and Puccinia coronata, leaf litter of Acer saccharum and soil (Chen et al. 1985, Zare & Gams 2001, Gams & Zare 2003)

Known distribution: — China, Germany, Great Britain, Iran, Israel, Netherlands, USA (Chen et al. 1985, Zare & Gams 2001, Gams & Zare 2003).

Material examined: — China, Yunnan Province, Kunming City, 25.047865N, 102.721724 E, industrial waste-contaminated soil, 16 December 2019, G.C. Ren (HKAS107657); living culture, KUMCC 20-0228.

 

 

 

FIGURE X. Lecanicillium dimorphum (HKAS 107658) a. Mature colony on PDA after 4 weeks with the sporulation b. Reverse of the colonies on PDA after 4 weeks c. Sporulation of the colony with mycelium. d. Mature septate hyphae. e. Phialides produced on prostrate hyphae f. Solitary phialide g, h. Caducous aphanophialides with microconidia i–m. Macroconidia n–r. Microconidia. Scale bars: e, f = 20 μm, d, g–i, p = 10 μm j, k, m–o, q, r = 5

 

 

Retrieved from:

Yasanthika E, Wanasinghe DN, Ren GC et al. 2021 – Taxonomic and phylogenetic insights into novel Ascomycota from contaminated soils in Yunnan, China. Phytotaxa, 513(3), 203-225. https://doi.org/10.11646/phytotaxa.513.3.2

 

 

References:

 

Chen JD, Liu JG, Chen SS, Ca, FJ et al. 1985 – A new species of Aphanocladium on Agaricus bisporus. Acta Mycologica Sinica 4, 227–233.

 

Gams W,  Zare R. 2003 – A Taxonomic Review of the Clavicipitaceous anamorphs parasitizing nematodes and other microinvertebrates. Clavicipitalean fungi: Evolutionary Biology, Chemistry, Biocontrol and Cultural impacts 19, 17–73. https://doi.org/10.1201/9780203912706.pt1

 

Zare R, Gams W. 2001 – A revision of Verticillium section Prostrata. IV. The genera Lecanicillium and Simplicillium gen. nov. Nova Hedwigia 73, 1–50. https://dx.doi.org/10.1127/nova.hedwigia/73/2001/1

 

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