Stagonosporopsis spp. associated with ray blight disease of Asteraceae

Vaghefi, Niloofar; Pethybridge, SJ; Ford, Rebecca; Nicolas, Marc E.; Crous, Pedro W.; Taylor, P. W. J.

doi:10.1007/s13313-012-0161-3

Cited by 50 publications

(65 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phylogeny of combined sequences of large subunit nrDNA (LSU), the internal transcribed spacers and the 5.8 S nrRNA (ITS), and β-tubulin regions resulted in the recognition of 19 species . Phylogenies based on the partial actin (ACT) sequence were later found to be congruent with the LSU-ITS-β-tubulin phylogeny (de Gruyter et al 2012;Vaghefi et al 2012). A four-marker phylogeny of the Stagonosporopsis spp.…”

Section: Molecular Phylogenymentioning

confidence: 90%

“…H o w e v e r , o n l y 2 1 Stagonosporopsis species have thus far been recognised based on multi-gene phylogenies (Table 23) Vaghefi et al 2012). The phylogenetic reassessment of Didymellaceae included only those Stagonosporopsis species that had been designated as Phoma synanmorphs by Boerema et al (1997Boerema et al ( , 1999.…”

Section: Species Identification and Numbersmentioning

confidence: 99%

“…Few phylogenetic analyses of Stagonosporopsis species are available (Pethybridge et al 2004;Aveskamp et al 2010;de Gruyter et al 2012;Vaghefi et al 2012Vaghefi et al , 2014, with the most comprehensive analysis being the three-marker phylogeny performed by Aveskamp et al (2010). The phylogeny of combined sequences of large subunit nrDNA (LSU), the internal transcribed spacers and the 5.8 S nrRNA (ITS), and β-tubulin regions resulted in the recognition of 19 species .…”

Section: Molecular Phylogenymentioning

confidence: 99%

“…& The internal transcribed spacer (ITS)-family/generic level & β-tubulin and ACT-inter-specific delineation A high level of infra-specific variation has been recorded for calmodulin (CAL) in Phoma-like species, however, it may be difficult to amplify in some Stagonosposopsis species, and Ex-type (ex-epitype) strains are bolded and marked with an * and voucher stains are bolded requires optimization using different degenerate primers Vaghefi et al 2012). Thus use of β-tubulin and ACT is suggested as they will give sufficient distinction between species, and are easier to amplify.…”

Section: Recommended Genetic Markersmentioning

confidence: 99%

“…Stagonosporopsis andigena, the cause of black blight of potato (Turkensteen 1978), and S. crystalliniformis, a destructive pathogen of tomato and potato (Loerakker et al 1986;Noordeloos et al 1993), have only been reported in the Andes region, and thus listed as A1 quarantine organisms (EPPO 2014). Stagonosporopsis chrysanthemi and S. inoxydabilis are the cause of ray (flower) blight of Asteraceae (Stevens 1907;Van der Aa et al 1990;Vaghefi et al 2012), and A2 quarantine organisms (EPPO 2014) (listed as Didymella ligulicola). In Australia, S. tanaceti is known as the causal agent of ray blight of pyrethrum, capable of causing complete yield loss (Pethybridge et al 2008).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

View full text Add to dashboard Cite

Many fungi are pathogenic on plants and cause significant damage in agriculture and forestry. They are also part of the natural ecosystem and may play a role in regulating plant numbers/density. Morphological identification and analysis of plant pathogenic fungi, while important, is often hampered by the scarcity of discriminatory taxonomic characters and the endophytic or inconspicuous nature of these fungi. Molecular (DNA sequence) data for plant pathogenic fungi have emerged as key information for diagnostic and classification studies, although hampered in part by non-standard laboratory practices and analytical methods. To facilitate current and future research, this study provides phylogenetic synopses for 25 groups of plant pathogenic fungi in the Ascomycota, Basidiomycota, Mucormycotina (Fungi), and Oomycota, using recent molecular data, up-to-date names, and the latest taxonomic insights. Lineagespecific laboratory protocols together with advice on their application, as well as general observations, are also provided. We hope to maintain updated backbone trees of these fungal lineages over time and to publish them jointly as new data emerge. Researchers of plant pathogenic fungi not covered by the present study are invited to join this future effort. Bipolaris, Botryosphaeriaceae,

show abstract

Section: Molecular Phylogenymentioning

confidence: 90%

Section: Species Identification and Numbersmentioning

confidence: 99%

Section: Molecular Phylogenymentioning

confidence: 99%

Section: Recommended Genetic Markersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

View full text Add to dashboard Cite

show abstract

Molecular Phylogeny, Diversity, and Bioprospecting of Endophytic Fungi Associated with wild Ethnomedicinal North American Plant Echinacea purpurea (Asteraceae)

Carvalho

Wedge

Cantrell

et al. 2016

Chemistry & Biodiversity

View full text Add to dashboard Cite

The endophytic fungal community associated with the ethnomedicinal plant Echinacea purpurea was investigated as well as its potential for providing antifungal compounds against plant pathogenic fungi. A total of 233 endophytic fungal isolates were obtained and classified into 42 different taxa of 16 genera, of which Alternaria alternata, Colletotrichum dematium, and Stagonosporopsis sp. 2 are the most frequent colonizers. The extracts of 29 endophytic fungi displayed activities against important phytopathogenic fungi. Eight antifungal extracts were selected for chemical analysis. Forty fatty acids were identified by gas chromatography-flame-ionization detection (GC-FID) analysis. The compounds (-)-5-methylmellein and (-)-(3R)-8-hydroxy-6-methoxy-3,5-dimethyl-3,4-dihydroisocoumarin were isolated from Biscogniauxia mediterraneaEPU38CA crude extract. (-)-5-Methylmellein showed weak activity against Phomopsis obscurans, P. viticola, and Fusarium oxysporum, and caused growth stimulation of C. fragariae, C. acutatum, C. gloeosporioides, and Botrytis cinerea. (-)-(3R)-8-Hydroxy-6-methoxy-3,5-dimethyl-3,4-dihydroisocoumarin appeared slightly more active in the microtiter environment than 5-methylmellein. Our results indicate that E. purpurea lives symbiotically with different endophytic fungi, which are able to produce bioactive fatty acids and aromatic compounds active against important phytopathogenic fungi. The detection of the different fatty acids and aromatic compounds produced by the endophytic community associated with wild E. purpurea suggests that it may have intrinsic mutualistic resistance against phytopathogen attacks in its natural environment.

show abstract