Pseudosydowia eucalypti
Pseudosydowia eucalypti (Verwoerd & du Plessis) Thambug. & K.D. Hyde, in Thambugala et al., Fungal Diversity 68: 140 (2014).
= Sphaerulina eucalypti Verwoerd & du Plessis, S. Afr. J. Sci. 28: 296 (1931).
Index Fungorum number: IF 550734; Facesoffungi number: FoF 00106, Fig. 1
Description: see Crous et al. (2003); Cheewangkoon et al. (2009).
Material examined: see Crous et al. (2003); Cheewangkoon et al. (2009).
Fig. 1 Pseudosydowia eucalypti (CPC 14927 = CPC 14928, 14929, holotype, re-drawn from Fig. 25 in Cheewangkoon et al. 2009). a Disease symptoms. b Conidia of Selenophoma morph. c Colony on pine needle agar. d Conidia of coniothyrium-like synasexual morph. e Conidiogenous cell. f Asci and ascospores. Scale bars: b = 20 μm, c = 100 μm, d = 20 μm, e, f = 40 μm.
Importance and distribution
Pseudosydowia comprises two species causing leaf spots on Eucalyptus species (Myrtaceae) in Australia (New South Wales) and Southern Africa.
Quarantine significance
Pseudosydowia is considered as an important quarantine pathogen that may cause damage to Eucalyptus species in the tropical and temperate regions.
References
Cheewangkoon R, Groenewald JZ, Summerell BA, Hyde KD et al. 2009 – Myrtaceae, a cache of fungal biodiversity. Persoonia 23, 55–85. https://doi.org/10.3767/003158509X474752
Crous PW, Groenewald JZ, Wingfield MJ, Aptroot A. 2003 – The value of ascospore septation in separating Mycosphaerella from Sphaerulina in the Dothideales: a Saccardoan myth? Sydowia 55, 136–152. https://www.fabinet.up.ac.za/publication/pdfs/667-2003_crous_groenewald_wingfield_aptroot_sydowia.pd f
Thambugala K, Ariyawansa H, Li Y, Boonmee S et al. 2014 – Dothideales. Fungal diversity 68, 105–158. https://doi.org/10.1007/s13225-014-0303-8
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