Table 2.
Overview of morphological characters of Microdochium spp.
Asexual morph |
Sexual morph |
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---|---|---|---|---|---|---|---|---|---|---|
Conidia |
Conidiogenous cells |
Chlamydospores |
Perithecia |
Asci |
Ascospores |
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Taxa | Shape | Size (μm) | # septa | Type - Shape | Size (μm) | Type | Size/Diameter (μm) | Size (μm) | Size (μm) | # septa |
M. albescens | falcate, slightly to strong curved, apex pointed | 11–16 × 3.5–4.5 | 0–1(–3) | percurrent, subcylindrical, doliiform to obpyriform | 6–15 × 1.5–4 | not observed | 150–180 × 90–120 | 40–85 × 8–12 | 14–23 × 3.5–4.5 | 1–3(–5) |
M. bolleyi | crescent | 5.5–8.5 × 1.6–2.2 | 0 | sympodial, cylindrical or ampulliform, with rachides | 2–4.5 × 2–3.5 | present, multicellular | not reported | not reported | not reported | not reported |
M. caespitosum | falcate, pointed | 25–30 × 1.5–2 | 1 | sympodial, ampulliform | 7.5–15 × 2.5–5 | not reported | not reported | not reported | not reported | not reported |
M. citrinidiscum | cylindrical, clavate, obovoid | 7–31 × 2–3 | 0–3 | sympodial, denticulate, cylindrical | 11–29 × 1.5–2 | not observed | not reported | not reported | not reported | not reported |
M. colombiense | lunate, fusiform, allantoid or reniform, straight or curved | 5–8 × 1.5–3 | 0(–1) | polyblastic, ampulliform, with per-current proliferations, or cylindrical | 5–13 × 2.5–3.5 | not observed | not reported | not reported | not reported | not reported |
M. consociata | not described | present – not described | present – not described | present – not described | present – not described | present – not described | 110–300 | 90–120 × 21–25 | 32–38 × 8–11 | 3–6 |
M. fisheri | obovoid, subpyriform, to clavate, fusiform | 7–12 × 3–4 | 0–1 | sympodial, denticulate, cylindrical | 19–60 × 1.5–2 | not observed | not reported | not reported | not reported | not reported |
M. fusariisporium | not reported | not reported | not reported | not reported | not reported | not reported | 165–220 × 137–165 | 45–65 × 8–9 | 20–32 × 3–3.5 | 1–3 |
M. griseum | falcate, pointed at both ends | 20–30 × 2–2.5 | 0 | sympodial, apical, ampulliform, up to 5 denticles | < 30 × 1–4.5 | not reported | not reported | not reported | not reported | not reported |
M. intermedium | fusiform, falcate | 8–15 × 3–4.5 | 1–2 | sympodial, cylindrical or ampulliform with short denticulate rachides | 10–20 × 3–4 | not reported | not reported | not reported | not reported | not reported |
M. lycopodinum | fusiform or with one side straighter than the other, lunate | 8–15 × 2.5–3.5 | 0–1 | ampulliform to lageniform, sub-cylindrical, percurrent proliferations | 4–12 × 2.5–3.5 | not observed | 80–190 | 37–66 × 5–7.5 | 9–24 × 2–3.5 | 1(–2–3) |
M. majus | falcate, slightly to strong curved, apex pointed, base wedge-shaped | 19–37 × 3.5–4.5 | (1–)7 | percurrent, apical, subcylindrical, doliiform to obpyriform | 6–15 × 2.2–4 | not reported | 300 × 170 | 50–70 × 7–9 | 9.5–17 × 3–4.5 | 1–3 |
M. maydis | cylindrical to slightly clavate, apex obtuse, base narrowed, mostly curved | 20–46 × 3–4 | 3–9 | percurrent, apical, doliiform, ampulliform to obpyriform | 15–20 × 10 | not reported | 200–250 × 100–200 | 80–90 × 10–12 | 18–25 × 3.5–5 | 1–3 |
M. neoqueenslandicum | lunate, allantoid, curved, with one side straighter than the other | 4–9 × 1.5–3 | 0(–1) | ampulliform, lageniform to subcylindrical, polyblastic, percurrent proliferations | 4.5–10 × 2–3.5 | not observed | not reported | not reported | not reported | not reported |
M. nivale | falcate, slightly to strong curved, apex pointed, base wedge-shaped, base obtuse to round | 5–36 × 2–4.5 | 3(–1–7) | percurrent, apical, subcylindrical, doliiform to obpyriform | 6–15 × 2.2–4 | not reported | 300 × 170 | 50–70 × 7–9 | 10–17 × 3.5–4.5 | 1(–3) |
M. opuntiae | not reported | not reported | not reported | not reported | not reported | not reported | 100–112 | > 60 × 8–9 | 20–22 × 3.5 | 1 |
M. palmicola | filiform, straight to slighlty flexuous, apex rounded | 7–16 × 1 | 0 | sympodial, apical, ampulliform to lageniform | 6–13 × 2.5–5(–7) | not reported | not reported | not reported | not reported | not reported |
M. paspali | falcate, apex pointed | 7–20.5 × 2.5–4.5 | 0–3 | percurrent, ampuliform, lageniform to cylindrical | 6.5–15.5 × 2.5–4 | not reported | not reported | not reported | not reported | not reported |
M. passiflorae | falcate | 28–50 × 3–3.5 | 1–6 | sympodial, apical, cylindrical to doliiform | 10–15 × 3–4 | not reported | 200–250 | 57–120 × 9–11 | 15–25 × 4–5 | 1–3 |
M. phragmitis | narrowly ellipsoid-fusiform, slightly curved, somewhat falcate apex obtuse to subacute, tapered, base somewhat obconically | 10–16 × 2–3.5 | 0–1 | sympodial, apical, ampulliform to lageniform | 5–12(–30) × 2.5–3 | not observed | not reported | not reported | not reported | not reported |
M. punctum | fusiform, straight, apex rounded to subacute | 20–30 × 3–5 | 1 | subcylindrical, ampulliform, conical to geniculate-sinuous | 5–8(–15) × 2–3 | not reported | not reported | not reported | not reported | not reported |
M. queenslandicum | lunate | 7.5–11 × 1.8–2 | 0 | sympodial, apical, ampulliform | 4–7 × 2–3 | not reported | not reported | not reported | not reported | not reported |
M. seminicola | cylindrical to fusiform, straight or curved | 19–54 × 3–4.5 | (0–)3(–5) | ampulliform to lageniform, with percurrent proliferations | 7–9.5 × 3–4 | not observed | 110–149 | 41–66 × 7.6–11 | 12–22 × 3–4.5 | 0–3 |
M. sorghi | filiform, narrowly acicular fusiform, obclavate | 20–90 × 1.5–4.5 | 1–7(–10) | sympodial, occasionally percurrent. Ovoid, ampulliform to obclavate | 5–13 × 3–4 | not reported | not reported | not reported | not reported | not reported |
M. stevensonii | not reported | not reported | not reported | not reported | not reported | not reported | 150–260 | 45–65 × 11–13 | 14–21 × 5–6.5 | 1–2 |
M. stoveri | cylindrical to fusiform, often curved, apex rounded | 13–39 × 2–3 | 0–2 | sympodial, apical, cylindrical | 6.5–15 × 2.5–3.5 | not reported | 120 × 90 | 75–115 × 18–28 | 23–30 × 5.5–6.5 | 3–4 |
M. tainanense | lunate | 10–15 × 2–3 | 0–1 | sympodial, apical, cylindrical or ampulliform with conspicuous rhachides | 3–10 × 1–3 | not observed | not reported | not reported | not reported | not reported |
M. trichocladiopsis | oblong, fusiform to obovoid, straight or curved | 6–18 × 2–3.5 | 0(–1) | cylindrical to clavate, straight often curved at the tip | 4–37 × 2–3 | present, trichocladium like | not reported | not reported | not reported | not reported |
M. triticicola | fusiform, straight | 5–14 × 2.5–4 | (0–)1 | sympodial, apical, ampulliform, lageniform to cylindrical | 6.5–35 × 2.5–3.5 | not reported | not reported | not reported | not reported | not reported |