Taxonomic revision of Septoria-like fungi parasitic on Betulaceae

Constantinescu, O.

doi:10.1016/s0007-1536(84)80035-2

Cited by 26 publications

(15 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of the red alder with leaf spot symptoms occurred in the coastal area. S. alnifolia leaf spots were pale brown and circular to irregular, generally 1-2 cm in diameter with a darker margin, and contained clusters of pycnidia in the centers of the leaf spots (Constantinescu 1984). M. alni conidiomata were white, mop-like, and consisted of filamentous tufts of conidia that were connected to the leaf tissue (Redhead andWhite 1985, Funk 1985).…”

Section: Pathogensmentioning

confidence: 99%

Alder Canopy Dieback and Damage in Western Oregon Riparian Ecosystems

et al. 2015

View full text Add to dashboard Cite

Section: Pathogensmentioning

confidence: 99%

Alder Canopy Dieback and Damage in Western Oregon Riparian Ecosystems

et al. 2015

View full text Add to dashboard Cite

“…Conidia hyaline, multiseptate, filiform, smooth and either continuous or constricted at septa. Later work by Constantinescu (1984), Sutton & Pascoe (1987, 1989) and Farr (1991, 1992) augmented Sutton’s previous generic circumscription by also including species with sympodial, enteroblastic and percurrent conidial proliferation. Furthermore, based on similarities in conidiomatal development, von Arx (1983) and Braun (1995) adopted an even wider concept of Septoria that included the acervular forms normally accommodated in Phloeospora.…”

Section: Introductionmentioning

confidence: 99%

Sizing up Septoria

Quaedvlieg¹,

Verkley²,

Shin³

et al. 2013

Studies in Mycology

276

273

View full text Add to dashboard Cite

Septoria represents a genus of plant pathogenic fungi with a wide geographic distribution, commonly associated with leaf spots and stem cankers of a broad range of plant hosts. A major aim of this study was to resolve the phylogenetic generic limits of Septoria, Stagonospora, and other related genera such as Sphaerulina, Phaeosphaeria and Phaeoseptoria using sequences of the the partial 28S nuclear ribosomal RNA and RPB2 genes of a large set of isolates. Based on these results Septoria is shown to be a distinct genus in the Mycosphaerellaceae, which has mycosphaerella-like sexual morphs. Several septoria-like species are now accommodated in Sphaerulina, a genus previously linked to this complex. Phaeosphaeria (based on P. oryzae) is shown to be congeneric with Phaeoseptoria (based on P. papayae), which is reduced to synonymy under the former. Depazea nodorum (causal agent of nodorum blotch of cereals) and Septoria avenae (causal agent of avenae blotch of barley and rye) are placed in a new genus, Parastagonospora, which is shown to be distinct from Stagonospora (based on S. paludosa) and Phaeosphaeria. Partial nucleotide sequence data for five gene loci, ITS, LSU, EF-1α, RPB2 and Btub were generated for all of these isolates. A total of 47 clades or genera were resolved, leading to the introduction of 14 new genera, 36 new species, and 19 new combinations.Taxonomic novelties:New genera - Acicuseptoria Quaedvlieg, Verkley & Crous, Cylindroseptoria Quaedvlieg, Verkley & Crous, Kirstenboschia Quaedvlieg, Verkley & Crous, Neoseptoria Quaedvlieg, Verkley & Crous, Neostagonospora Quaedvlieg, Verkley & Crous, Parastagonospora Quaedvlieg, Verkley & Crous, Polyphialoseptoria Quaedvlieg, R.W. Barreto, Verkley & Crous, Ruptoseptoria Quaedvlieg, Verkley & Crous, Septorioides Quaedvlieg, Verkley & Crous, Setoseptoria Quaedvlieg, Verkley & Crous, Stromatoseptoria Quaedvlieg, Verkley & Crous, Vrystaatia Quaedvlieg, W.J. Swart, Verkley & Crous, Xenobotryosphaeria Quaedvlieg, Verkley & Crous, Xenoseptoria Quaedvlieg, H.D. Shin, Verkley & Crous. New species - Acicuseptoria rumicis Quaedvlieg, Verkley & Crous, Caryophylloseptoria pseudolychnidis Quaedvlieg, H.D. Shin, Verkley & Crous, Coniothyrium sidae Quaedvlieg, Verkley, R.W. Barreto & Crous, Corynespora leucadendri Quaedvlieg, Verkley & Crous, Cylindroseptoria ceratoniae Quaedvlieg, Verkley & Crous, Cylindroseptoria pistaciae Quaedvlieg, Verkley & Crous, Kirstenboschia diospyri Quaedvlieg, Verkley & Crous, Neoseptoria caricis Quaedvlieg, Verkley & Crous, Neostagonospora caricis Quaedvlieg, Verkley & Crous, Neostagonospora elegiae Quaedvlieg, Verkley & Crous, Paraphoma dioscoreae Quaedvlieg, H.D. Shin, Verkley & Crous, Parastagonospora caricis Quaedvlieg, Verkley & Crous, Parastagonospora poae Quaedvlieg, Verkley & Crous, Phlyctema vincetoxici Quaedvlieg, Verkley & Crous, Polyphialoseptoria tabebuiae-serratifoliae Quaedvlieg, Alfenas & Crous, Polyphialoseptoria terminaliae Quaedvlieg, R.W. Barreto, Verkley & Crous, Pseudoseptoria collariana Quaedvlieg, Verkley & Crous, Pseudosep...

show abstract

“…Most taxonomists adopted a generic concept of Septoria that included fungi forming pycnidial conidiomata with holoblastic, hyaline, smooth-walled conidiogenous cells with sympodial and/or percurrent proliferation and hyaline, smooth, filiform to cylindrical multi-septate conidia (Sutton 1980, Constantinescu 1984, Sutton & Pascoe 1987, 1989, Farr 1991, 1992). Similar fungi forming acervular conidiomata were classified in Phloeospora , with Phloeospora ulmi as the type species, yet some researchers adopted a broader concept to include Phloeospora in Septoria (Jørstad 1965, Von Arx 1983, Andrianova 1987, Braun 1995).…”

Section: Introductionmentioning

confidence: 99%

A new approach to species delimitation in Septoria

Verkley¹,

Quaedvlieg²,

Shin³

et al. 2013

Studies in Mycology

112

100

View full text Add to dashboard Cite

Septoria is a large genus of asexual morphs of Ascomycota causing leaf spot diseases of many cultivated and wild plants. Host specificity has long been a decisive criterium in species delimitation in Septoria, mainly because of the paucity of useful morphological characters and the high level of variation therein. This study aimed at improving the species delimitation of Septoria by adopting a polyphasic approach, including multilocus DNA sequencing and morphological analyses on the natural substrate and in culture. To this end 365 cultures preserved in CBS, Utrecht, The Netherlands, among which many new isolates obtained from fresh field specimens were sequenced. Herbarium material including many types was also studied. Full descriptions of the morphology in planta and in vitro are provided for 57 species. DNA sequences were generated for seven loci, viz. nuclear ITS and (partial) LSU ribosomal RNA genes, RPB2, actin, calmodulin, Btub, and EF. The robust phylogeny inferred showed that the septoria-like fungi are distributed over three main clades, establishing the genera Septoria s. str., Sphaerulina, and Caryophylloseptoria gen. nov. Nine new combinations and one species, Sphaerulina tirolensis sp. nov. were proposed. It is demonstrated that some species have wider host ranges than expected, including hosts from more than one family. Septoria protearum, previously only associated with Proteaceae was found to be also associated with host plants from six additional families of phanerogams and cryptogams. To our knowledge this is the first study to provide DNA-based evidence that multiple family-associations occur for a single species in Septoria. The distribution of host families over the phylogenetic tree showed a highly dispersed pattern for 10 host plant families, providing new insight into the evolution of these fungi. It is concluded that trans-family host jumping is a major force driving the evolution of Septoria and Sphaerulina.Taxonomic novelties:New genus - Caryophylloseptoria Verkley, Quaedvlieg & Crous; New species - Sphaerulina tirolensis Verkley, Quaedvlieg & Crous; New combinations - Caryophylloseptoria lychnidis (Desm.) Verkley, Quaedvlieg & Crous, Caryophylloseptoria silenes (Westend.) Verkley, Quaedvlieg & Crous, Caryophylloseptoria spergulae (Westend.) Verkley, Quaedvlieg & Crous, Sphaerulina aceris (Lib.) Verkley, Quaedvlieg & Crous, Sphaerulina cornicola (DC.: Fr.) Verkley, Quaedvlieg & Crous, Sphaerulina gei (Roberge ex Desm.) Verkley, Quaedvlieg & Crous, Sphaerulina hyperici (Roberge ex Desm.) Verkley, Quaedvlieg & Crous, Sphaerulina frondicola (Fr.) Verkley, Quaedvlieg & Crous, Sphaerulina socia (Pass.) Quaedvlieg, Verkley & Crous; Epitypifications (basionyms) - Ascochyta lysimachiae Lib., Septoria astragali Roberge ex Desm., Septoria cerastii Roberge ex Desm., Septoria clematidis Roberge ex Desm., Septoria cruciatae Roberge ex Desm., Septoria spergulae Westend., Septoria epilobii Westend., Septoria galeopsidis Westend., Septoria gei Roberge ex Desm., Septoria hyperici Roberge ex Desm., Sep...

show abstract

Taxonomic revision of Septoria-like fungi parasitic on Betulaceae

Cited by 26 publications

References 6 publications

Alder Canopy Dieback and Damage in Western Oregon Riparian Ecosystems

Alder Canopy Dieback and Damage in Western Oregon Riparian Ecosystems

Sizing up Septoria

A new approach to species delimitation in Septoria

Contact Info

Product

Resources

About