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Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas 2020

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Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas in Cabral et al., Plants (Basel) 9 12 (2020)
Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas 2020

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Indigenous
Present
New Zealand
Political Region

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(B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas
B.S. Weir & P.R. Johnst.
A. Cabral & P. Talhinhas
2020
12
ICN
species
Colletotrichum cigarro

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Other specimens examined: Brazil, on leaves of Miconia sp., coll. R. Barreto RWB1054, 2009 (ICMP 18728). Germany, Berlin-Dahlem, on stem of Hypericum perforatum, Jun. 1937 (ex-holotype culture of Glomerella cingulata var. migrans – CBS 237.49 = ICMP 17922). New Zealand, Auckland, Waitakere Ranges, on leaves of Kunzea ericoides, coll. S. Joshee 5Kun3.10 (ICMP 18741); Auckland, Waitakere Ranges, on leaves of K. ericoides, coll. S. Joshee 7Kun5.2 (ICMP 18534); Auckland, Waitakere Ranges, on leaves of Toronia toru, coll. G. Carroll TOROTO3 (ICMP 18544); Te Puke, on Persea americana fruit rot, coll. W.F.T. Hartill, 19 Jan. 1989 (ICMP 18531); Te Puke, on P. americana fruit rot, coll. W.F.T. Hartill, 8 Feb. 1988 (ICMP 12952); Te Puke, on P. americana fruit rot, coll. W.F.T. Hartill, 28 Sep. 1991 (ICMP 12953). South Africa, Madeira, on Dryandra sp., coll. J.E. Taylor, 1 Apr 2001 (CBS 112984, as C. crassipes = ICMP 17932). Switzerland, on Dryas octopetala, coll. P. Cannon (IMI 359911 = CBS 12988 = ICMP 17931). USA, on Vaccinium macrocarpum leaves, coll. C.L. Shear, Apr. 1922 (authentic culture of G. rufomaculans var. vaccinii – CBS 124.22 = ICMP 19122).
Colonies grown from single conidia on Difco PDA 75–85 mm diam after 10 d for most isolates, the ex-holotype culture of G. cingulata var. migrans 48–49 mm diam. Aerial mycelium cottony, grey, dense, or in some isolates with dark stromatic masses and associated orange conidial ooze showing through mycelium from agar surface; in reverse agar with pinkish-orange pigments (6B4–7B4), irregular scattered black spots, and variable levels of development of overlying dark grey to green-grey pigments (4C2–5D4), these sometimes in discrete sectors. See notes below about a divergent growth form single ascospore cultures from perithecia in culture. Conidia form on dark-based acervuli, (12–)16–19.5(–29) × (4.5–)5(–8) µm (av. 17.8 × 5.1 µm, n = 214), cylindric, straight, apex rounded, often tapering slightly towards the base. Appressoria typically cylindric to fusoid in shape, deeply lobed. Perithecia numerous, forming tightly packed clumps, individual perithecia globose, small, about 250 µm diam, with a short ostiolar neck. Asci 55–100 × 10–12 µm, 8–spored. Ascospores (13.5–)17.5–20(–24) × (4–)4.5–5(–6.5) µm (av. 18.8 × 4.8 µm, n = 121), gently curved, tapering to quite narrow, rounded ends, widest point usually towards one end of the spore.
Geographic distribution and host range: Known from Australia, Germany, New Zealand, and South Africa. Both host and geographic range of the isolates we accept in C. kahawae subsp. ciggaro are broad. Genetic identification: ACT, CAL, CHS-1, GAPDH, TUB2, SOD2, and ITS sequences match those from C. kahawae subsp. kahawae. The two subspecies can be distinguished by GS sequences. Collectively, the two subspecies can be distinguished from all other species using ITS sequences alone.
Holotype: Australia, on Olea europaea, coll. V. Sergeeva UWS124, 1989, PDD 102232; ex-type culture ICMP 18539

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Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas 2020
Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas
Colletotrichum kahawae subsp. cigarro B.S. Weir & P.R. Johnst.
Colletotrichum cigarro (B.S. Weir & P.R. Johnst.) A. Cabral & P. Talhinhas 2020

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taxonomic status
A combination for C. kahawae s.l. specimens that do not cause coffee berry disease; this species concept is phylogenetically paraphyletic [PRJ, 2020]

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526abad9-08cf-4957-81d8-b630818c4d7b
scientific name
Names_Fungi
13 July 2020
13 July 2020
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