@ARTICLE{TreeBASE2Ref21958,
author = {Janaina Lana Alves and Joyce H. C. Woudenberg and Lidiane Leal Duarte and Pedro W. Crous and Robert W. Barreto},
title = {Reappraisal of the genus Alternariaster (Dothideomycetes)},
year = {2013},
keywords = {Alternaria, fungal pathogens, host-range, multi-gene phylogeny},
doi = {},
url = {http://},
pmid = {},
journal = {Persoonia: Molecular Phylogeny and Evolution of Fungi},
volume = {},
number = {},
pages = {},
abstract = {Alternariaster was erected in 2007 to accommodate Alternaria helianthi, a fungal species known to cause leaf spots on Helianthus annuus (sunflower). It was segregated from Alternaria based on conidial morphology. Recently an unknown alternaria-like dematiaceous fungus was found associated with leaf spots on Bidens sulphurea (yellow cosmos) in Brazil. Based on a multi-gene phylogeny of parts of the ITS and LSU genes, this fungus was placed within the Leptosphaeriaceae with Alternariaster helianthi as its closest neighbour. Additional genes sequenced, RPB2 and GAPDH, confirmed this close relationship. The fungus on B. sulphurea has smaller conidia, 50?97.5 × 12.5?20 µm, compared to Al. helianthi, 80?160 × 18?30 µm, and lacks oblique or transverse septa which can be present in Al. helianthi. Pathogenicity studies on 18 plant species belonging to the Compositae showed that the B. sulphurea fungus only infected B. sulphurea, whereas Al. helianthi infected H. annuus and Galinsoga quadriradiata, a yet unreported host of Al. helianthi. The fungus causing disease on B. sulphurea is hence closely related but phylogenetically, morphologically and pathologically distinct from Al. helianthi, and therefore newly described as Alternariaster bidentis. The collection of a second species in the genus Alternariaster and the multi-gene phylogenetic analysis of these two species, confirmed Alternariaster to be a well delimited genus in the Leptosphaeriaceae rather than the Pleosporaceae, to which Alternaria belongs.}
}
Citation for Study 14185
Citation title:
"Reappraisal of the genus Alternariaster (Dothideomycetes)".
Study name:
"Reappraisal of the genus Alternariaster (Dothideomycetes)".
This study is part of submission 14185
(Status: Published).
Citation
Alves J.L., Woudenberg J., Duarte L.L., Crous P.W., & Barreto R. 2013. Reappraisal of the genus Alternariaster (Dothideomycetes). Persoonia: Molecular Phylogeny and Evolution of Fungi, .
Authors
-
Alves J.L.
-
Woudenberg J.
-
Duarte L.L.
-
Crous P.W.
-
Barreto R.
Abstract
Alternariaster was erected in 2007 to accommodate Alternaria helianthi, a fungal species known to cause leaf spots on Helianthus annuus (sunflower). It was segregated from Alternaria based on conidial morphology. Recently an unknown alternaria-like dematiaceous fungus was found associated with leaf spots on Bidens sulphurea (yellow cosmos) in Brazil. Based on a multi-gene phylogeny of parts of the ITS and LSU genes, this fungus was placed within the Leptosphaeriaceae with Alternariaster helianthi as its closest neighbour. Additional genes sequenced, RPB2 and GAPDH, confirmed this close relationship. The fungus on B. sulphurea has smaller conidia, 50?97.5 × 12.5?20 µm, compared to Al. helianthi, 80?160 × 18?30 µm, and lacks oblique or transverse septa which can be present in Al. helianthi. Pathogenicity studies on 18 plant species belonging to the Compositae showed that the B. sulphurea fungus only infected B. sulphurea, whereas Al. helianthi infected H. annuus and Galinsoga quadriradiata, a yet unreported host of Al. helianthi. The fungus causing disease on B. sulphurea is hence closely related but phylogenetically, morphologically and pathologically distinct from Al. helianthi, and therefore newly described as Alternariaster bidentis. The collection of a second species in the genus Alternariaster and the multi-gene phylogenetic analysis of these two species, confirmed Alternariaster to be a well delimited genus in the Leptosphaeriaceae rather than the Pleosporaceae, to which Alternaria belongs.
Keywords
Alternaria, fungal pathogens, host-range, multi-gene phylogeny
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S14185
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref21958,
author = {Janaina Lana Alves and Joyce H. C. Woudenberg and Lidiane Leal Duarte and Pedro W. Crous and Robert W. Barreto},
title = {Reappraisal of the genus Alternariaster (Dothideomycetes)},
year = {2013},
keywords = {Alternaria, fungal pathogens, host-range, multi-gene phylogeny},
doi = {},
url = {http://},
pmid = {},
journal = {Persoonia: Molecular Phylogeny and Evolution of Fungi},
volume = {},
number = {},
pages = {},
abstract = {Alternariaster was erected in 2007 to accommodate Alternaria helianthi, a fungal species known to cause leaf spots on Helianthus annuus (sunflower). It was segregated from Alternaria based on conidial morphology. Recently an unknown alternaria-like dematiaceous fungus was found associated with leaf spots on Bidens sulphurea (yellow cosmos) in Brazil. Based on a multi-gene phylogeny of parts of the ITS and LSU genes, this fungus was placed within the Leptosphaeriaceae with Alternariaster helianthi as its closest neighbour. Additional genes sequenced, RPB2 and GAPDH, confirmed this close relationship. The fungus on B. sulphurea has smaller conidia, 50?97.5 × 12.5?20 µm, compared to Al. helianthi, 80?160 × 18?30 µm, and lacks oblique or transverse septa which can be present in Al. helianthi. Pathogenicity studies on 18 plant species belonging to the Compositae showed that the B. sulphurea fungus only infected B. sulphurea, whereas Al. helianthi infected H. annuus and Galinsoga quadriradiata, a yet unreported host of Al. helianthi. The fungus causing disease on B. sulphurea is hence closely related but phylogenetically, morphologically and pathologically distinct from Al. helianthi, and therefore newly described as Alternariaster bidentis. The collection of a second species in the genus Alternariaster and the multi-gene phylogenetic analysis of these two species, confirmed Alternariaster to be a well delimited genus in the Leptosphaeriaceae rather than the Pleosporaceae, to which Alternaria belongs.}
}
- Show RIS reference
TY - JOUR
ID - 21958
AU - Alves,Janaina Lana
AU - Woudenberg,Joyce H. C.
AU - Duarte,Lidiane Leal
AU - Crous,Pedro W.
AU - Barreto,Robert W.
T1 - Reappraisal of the genus Alternariaster (Dothideomycetes)
PY - 2013
KW - Alternaria
KW - fungal pathogens
KW - host-range
KW - multi-gene phylogeny
UR - http://dx.doi.org/
N2 - Alternariaster was erected in 2007 to accommodate Alternaria helianthi, a fungal species known to cause leaf spots on Helianthus annuus (sunflower). It was segregated from Alternaria based on conidial morphology. Recently an unknown alternaria-like dematiaceous fungus was found associated with leaf spots on Bidens sulphurea (yellow cosmos) in Brazil. Based on a multi-gene phylogeny of parts of the ITS and LSU genes, this fungus was placed within the Leptosphaeriaceae with Alternariaster helianthi as its closest neighbour. Additional genes sequenced, RPB2 and GAPDH, confirmed this close relationship. The fungus on B. sulphurea has smaller conidia, 50?97.5 × 12.5?20 µm, compared to Al. helianthi, 80?160 × 18?30 µm, and lacks oblique or transverse septa which can be present in Al. helianthi. Pathogenicity studies on 18 plant species belonging to the Compositae showed that the B. sulphurea fungus only infected B. sulphurea, whereas Al. helianthi infected H. annuus and Galinsoga quadriradiata, a yet unreported host of Al. helianthi. The fungus causing disease on B. sulphurea is hence closely related but phylogenetically, morphologically and pathologically distinct from Al. helianthi, and therefore newly described as Alternariaster bidentis. The collection of a second species in the genus Alternariaster and the multi-gene phylogenetic analysis of these two species, confirmed Alternariaster to be a well delimited genus in the Leptosphaeriaceae rather than the Pleosporaceae, to which Alternaria belongs.
L3 -
JF - Persoonia: Molecular Phylogeny and Evolution of Fungi
VL -
IS -
ER -