Studies in Mycology (2019) 94, 125-298

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P.W. Crous, M.J. Wingfield, R. Cheewangkoon, A.J. Carnegie, T.I. Burgess, B.A. Summerell, J. Edwards, P.W.J. Taylor and J.Z. Groenewald (2019)
Foliar pathogens of eucalypts
Studies in Mycology 94 (1), 125-298
Abstract: Species of eucalypts are commonly cultivated for solid wood and pulp products. The expansion of commercially managed eucalypt plantations has chiefly been driven by their rapid growth and suitability for propagation across a very wide variety of sites and climatic conditions. Infection of foliar fungal pathogens of eucalypts is resulting in increasingly negative impacts on commercial forest industries globally. To assist in evaluating this threat, the present study provides a global perspective on foliar pathogens of eucalypts. We treat 110 different genera including species associated with foliar disease symptoms of these hosts. The vast majority of these fungi have been grown in axenic culture, and subjected to DNA sequence analysis, resolving their phylogeny. During the course of this study several new genera and species were encountered, and these are described. New genera include: Lembosiniella (L. eucalyptorum on E. dunnii, Australia), Neosonderhenia (N. eucalypti on E. costata, Australia), Neothyriopsis (N. sphaerospora on E. camaldulensis, South Africa), Neotrichosphaeria (N. eucalypticola on E. deglupta, Australia), Nothotrimmatostroma (N. bifarium on E. dalrympleana, Australia), Nowamyces (incl. Nowamycetaceae fam. nov., N. globulus on E. globulus, Australia), and Walkaminomyces (W. medusae on E. alba, Australia). New species include (all from Australia): Disculoides fraxinoides on E. fraxinoides, Elsinoe piperitae on E. piperita, Fusculina regnans on E. regnans, Marthamyces johnstonii on E. dunnii, Neofusicoccum corticosae on E. corticosa, Neotrimmatostroma dalrympleanae on E. dalrympleana, Nowamyces piperitae on E. piperita, Phaeothyriolum dunnii on E. dunnii, Pseudophloeospora eucalyptigena on E. obliqua, Pseudophloeospora jollyi on Eucalyptus sp., Quambalaria tasmaniae on Eucalyptus sp., Q. rugosae on E. rugosa, Sonderhenia radiata on E. radiata, Teratosphaeria pseudonubilosa on E. globulus and Thyrinula dunnii on E. dunnii. A new name is also proposed for Heteroconium eucalypti as Thyrinula uruguayensis on E. dunnii, Uruguay. Although many of these genera and species are commonly associated with disease problems, several appear to be opportunists developing on stressed or dying tissues. For the majority of these fungi, pathogenicity remains to be determined. This represents an important goal for forest pathologists and biologists in the future. Consequently, this study will promote renewed interest in foliar pathogens of eucalypts, leading to investigations that will provide an improved understanding of the biology of these fungi.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Full text of article
Database assignments for author(s): Pedro W. Crous, Michael J. Wingfield, Angus J. Carnegie, Treena Burgess, Brett A. Summerell, Jacqueline Edwards, Paul W.J. Taylor, Johannes Z. Groenewald

Research topic(s) for pests/diseases/weeds:
identification/taxonomy


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Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Austropuccinia psidii Eucalypt (Eucalyptus) Brazil (south)
Pseudoplagiostoma eucalypti Eucalypt (Eucalyptus) U.S.A. (Hawaii)
Calonectria pauciramosa Eucalypt (Eucalyptus) Brazil (NE)
Calonectria leguminum Eucalypt (Eucalyptus) China (south)
Uwebraunia dekkeri Eucalypt (Eucalyptus) South Africa
Teratosphaeria cryptica Eucalypt (Eucalyptus) Australia (South+SE)
Neofusicoccum eucalyptorum Eucalypt (Eucalyptus) South Africa
Calonectria reteaudii Eucalypt (Eucalyptus) Vietnam
Teratosphaeria eucalypti Eucalypt (Eucalyptus) Australia (South+SE)
Phloeosporella eucalypticola Eucalypt (Eucalyptus) Australia (South+SE)
Suberoteratosphaeria suberosa Eucalypt (Eucalyptus) Brazil (south)
Pestalotiopsis disseminata Eucalypt (Eucalyptus) New Zealand
Coniella eucalyptorum Eucalypt (Eucalyptus) Australia (NT+QLD)
Coniella destruens Eucalypt (Eucalyptus) U.S.A. (Hawaii)
Parapallidocercospora colombiensis Eucalypt (Eucalyptus) Colombia
Amycosphaerella africana Eucalypt (Eucalyptus) South Africa
Parapallidocercospora thailandica Acacia (crop) Thailand
Teratosphaeria molleriana Eucalypt (Eucalyptus) Portugal (continental)
Calonectria spathulata Eucalypt (Eucalyptus) Brazil (south)
Austroafricana parva Eucalypt (Eucalyptus) Australia (South+SE)
Quambalaria eucalypti Eucalypt (Eucalyptus) South Africa
Quambalaria pitereka Eucalypt (Eucalyptus) Australia (South+SE)
Teratosphaeria viscida Eucalypt (Eucalyptus) Australia (NT+QLD)
Calonectria ovata Eucalypt (Eucalyptus) Brazil (NE)
Sonderhenia eucalyptorum Eucalypt (Eucalyptus) Australia (South+SE)
Pseudocercospora eucalyptorum Eucalypt (Eucalyptus) South Africa
Virosphaerella pseudomarksii Eucalypt (Eucalyptus) Thailand
Pseudozasmidium vietnamense Eucalypt (Eucalyptus) Vietnam
Pseudocercospora chiangmaiensis Eucalypt (Eucalyptus) Thailand
Pilidium lythri Eucalypt (Eucalyptus) Brazil (south)
Phaeophleospora scytalidii Eucalypt (Eucalyptus) Colombia
Pseudocercospora norchiensis Eucalypt (Eucalyptus) Italy
Pseudoteratosphaeria ohnowa Eucalypt (Eucalyptus) South Africa
Blastacervulus eucalypti Eucalypt (Eucalyptus) Australia (South+SE)
Elsinoë eucalypticola Eucalypt (Eucalyptus) Australia (NT+QLD)
Readeriella patrickii Eucalypt (Eucalyptus) Australia (South+SE)
Pseudocercospora tereticornis Eucalypt (Eucalyptus) Australia (NT+QLD)
Readeriella angustia Eucalypt (Eucalyptus) Australia (South+SE)
Readeriella eucalyptigena Eucalypt (Eucalyptus) Australia (South+SE)
Readeriella mirabilis Eucalypt (Eucalyptus) Australia (South+SE)
Readeriella pseudocallista Eucalypt (Eucalyptus) Australia (South+SE)
Readeriella tasmanica Eucalypt (Eucalyptus) Australia (South+SE)
Readeriella menaiensis Eucalypt (Eucalyptus) Australia (South+SE)
Hyalozasmidium aerohyalinosporum Eucalypt (Eucalyptus) Australia (NT+QLD)
Calonectria pseudoreteaudii Eucalypt (Eucalyptus) China (south)
Calonectria cerciana Eucalypt (Eucalyptus) China (south)
Calonectria queenslandica Eucalypt (Eucalyptus) Australia (NT+QLD)
Calonectria terrae-reginae Eucalypt (Eucalyptus) Australia (NT+QLD)
Calonectria crousiana Eucalypt (Eucalyptus) China (south)
Calonectria pseudocolhounii Eucalypt (Eucalyptus) China (south)
Calonectria fujianensis Eucalypt (Eucalyptus) China (south)
Colletotrichum karstii Eucalypt (Eucalyptus) South Africa
Colletotrichum theobromicola Eucalypt (Eucalyptus) South Africa
Cylindrocladiella lageniformis Eucalypt (Eucalyptus) Brazil (south)
Calonectria pentaseptata Eucalypt (Eucalyptus) Vietnam
Apoharknessia eucalyptorum Eucalypt (Eucalyptus) Malaysia
Davisoniella eucalypti Eucalypt (Eucalyptus)