Reassessing Vermisporium (Amphisphaeriaceae), a genus of foliar pathogens of eucalypts

P.A. Barber; P.W. Crous; J.Z. Groenewald; I.G. Pascoe; P. Keane

doi:10.3767/003158511X617381

Reassessing Vermisporium (Amphisphaeriaceae), a genus of foliar pathogens of eucalypts

P.A. Barber, P.W. Crous, J.Z. Groenewald, I.G. Pascoe, P. Keane

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Abstract

The genus Vermisporium presently accommodates 13 species, 11 of which are associated with leaf spots of eucalypts in the Southern Hemisphere. Vermisporium is chiefly distinguished from Seimatosporium (Amphisphaeriaceae) on the basis of a short exogenous basal appendage, and the absence of a recognisable apical appendage. Due to the increasing importance of these species in native forests, and confusion pertaining to their taxonomy, a revision of the genus was undertaken based on fresh collections and dried herbarium specimens. Results from DNA sequence data analyses of the nrDNA-ITS and 28S nrRNA genes for species of Vermisporium indicated the genus to be a synonym of Seimatosporium. New combinations are introduced in Seimatosporium for several species: S. acutum, S. biseptatum, S. brevicentrum, S. obtusum, S. orbiculare, S. verrucisporum and S. walkeri. An updated key to all species occurring on eucalypts is also provided. Keywords: Australia, Eucalyptus, foliar pathogen, Seimatosporium, taxonomy

Original language	English
Pages (from-to)	90-118
Journal	Persoonia
Volume	27
DOIs	https://doi.org/10.3767/003158511X617381
Publication status	Published - 2011

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title = "Reassessing Vermisporium (Amphisphaeriaceae), a genus of foliar pathogens of eucalypts",

abstract = "The genus Vermisporium presently accommodates 13 species, 11 of which are associated with leaf spots of eucalypts in the Southern Hemisphere. Vermisporium is chiefly distinguished from Seimatosporium (Amphisphaeriaceae) on the basis of a short exogenous basal appendage, and the absence of a recognisable apical appendage. Due to the increasing importance of these species in native forests, and confusion pertaining to their taxonomy, a revision of the genus was undertaken based on fresh collections and dried herbarium specimens. Results from DNA sequence data analyses of the nrDNA-ITS and 28S nrRNA genes for species of Vermisporium indicated the genus to be a synonym of Seimatosporium. New combinations are introduced in Seimatosporium for several species: S. acutum, S. biseptatum, S. brevicentrum, S. obtusum, S. orbiculare, S. verrucisporum and S. walkeri. An updated key to all species occurring on eucalypts is also provided. Keywords: Australia, Eucalyptus, foliar pathogen, Seimatosporium, taxonomy",

author = "P.A. Barber and P.W. Crous and J.Z. Groenewald and I.G. Pascoe and P. Keane",

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AU - Barber, P.A.

AU - Crous, P.W.

AU - Groenewald, J.Z.

AU - Pascoe, I.G.

AU - Keane, P.

N1 - Reporting year: 2011

PY - 2011

Y1 - 2011

N2 - The genus Vermisporium presently accommodates 13 species, 11 of which are associated with leaf spots of eucalypts in the Southern Hemisphere. Vermisporium is chiefly distinguished from Seimatosporium (Amphisphaeriaceae) on the basis of a short exogenous basal appendage, and the absence of a recognisable apical appendage. Due to the increasing importance of these species in native forests, and confusion pertaining to their taxonomy, a revision of the genus was undertaken based on fresh collections and dried herbarium specimens. Results from DNA sequence data analyses of the nrDNA-ITS and 28S nrRNA genes for species of Vermisporium indicated the genus to be a synonym of Seimatosporium. New combinations are introduced in Seimatosporium for several species: S. acutum, S. biseptatum, S. brevicentrum, S. obtusum, S. orbiculare, S. verrucisporum and S. walkeri. An updated key to all species occurring on eucalypts is also provided. Keywords: Australia, Eucalyptus, foliar pathogen, Seimatosporium, taxonomy

AB - The genus Vermisporium presently accommodates 13 species, 11 of which are associated with leaf spots of eucalypts in the Southern Hemisphere. Vermisporium is chiefly distinguished from Seimatosporium (Amphisphaeriaceae) on the basis of a short exogenous basal appendage, and the absence of a recognisable apical appendage. Due to the increasing importance of these species in native forests, and confusion pertaining to their taxonomy, a revision of the genus was undertaken based on fresh collections and dried herbarium specimens. Results from DNA sequence data analyses of the nrDNA-ITS and 28S nrRNA genes for species of Vermisporium indicated the genus to be a synonym of Seimatosporium. New combinations are introduced in Seimatosporium for several species: S. acutum, S. biseptatum, S. brevicentrum, S. obtusum, S. orbiculare, S. verrucisporum and S. walkeri. An updated key to all species occurring on eucalypts is also provided. Keywords: Australia, Eucalyptus, foliar pathogen, Seimatosporium, taxonomy

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DO - 10.3767/003158511X617381

M3 - Article

SN - 0031-5850

VL - 27

SP - 90

EP - 118

JO - Persoonia

JF - Persoonia

ER -

Reassessing Vermisporium (Amphisphaeriaceae), a genus of foliar pathogens of eucalypts

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