Chamomile Floricolous Downy Mildew Caused by Peronospora radii
2019
Authors
Duduk, BojanDuduk, Nataša
Vico, Ivana
Stepanović, Jelena
Marković, Tatjana
Rekanović, Emil
Kube, Michael
Radanović, Dragoja
Article (Published version)
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Floricolous downy mildews (Peronospora, oomycetes) are a small, monophyletic group of mostly inconspicuous plant pathogens that induce symptoms exclusively on flowers. Characterization of this group of pathogens, and information about their biology, is particularly sparse. The recurrent presence of a disease causing flower malformation which, in turn, leads to high production losses of the medicinal herb Matricaria chamomilla in Serbia has enabled continuous experiments focusing on the pathogen and its biology. Peronospora radii was identified as the causal agent of the disease, and morphologically and molecularly characterized. Diseased chamomile flowers showed severe malformations of the disc and ray florets, including phyllody and secondary inflorescence formation, followed by the onset of downy mildew. Phylogeny, based on internal transcribed spacer and cox2, indicates clustering of the Serbian P. radii with other P. radii from chamomile although, in cox2 analyses, they formed a se...parate subcluster. Evidence pointing to systemic infection was provided through histological and molecular analyses, with related experiments validating the impact of soilborne and blossom infections. This study provides new findings in the biology of P. radii on chamomile, thus enabling the reconstruction of this floricolous Peronospora species' life cycle.
Keywords:
ecology and epidemiology / life cycle / Matricaria chamomilla / systemic infectionSource:
Phytopathology, 2019, 109, 11, 1900-1907Publisher:
- Amer Phytopathological Soc, St Paul
Funding / projects:
- Studies on plant pathogens, arthropods, weeds, and pesticides with a view to developing the methods of biorational plant protection and safe food production (RS-31043)
- Status, trends and possibilities to increase the fertility of agricultural land in the Vojvodina Province (RS-31072)
DOI: 10.1094/PHYTO-04-19-0138-R
ISSN: 0031-949X
PubMed: 31369362
WoS: 000502009900008
Scopus: 2-s2.0-85074379114
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Poljoprivredni fakultetTY - JOUR AU - Duduk, Bojan AU - Duduk, Nataša AU - Vico, Ivana AU - Stepanović, Jelena AU - Marković, Tatjana AU - Rekanović, Emil AU - Kube, Michael AU - Radanović, Dragoja PY - 2019 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4963 AB - Floricolous downy mildews (Peronospora, oomycetes) are a small, monophyletic group of mostly inconspicuous plant pathogens that induce symptoms exclusively on flowers. Characterization of this group of pathogens, and information about their biology, is particularly sparse. The recurrent presence of a disease causing flower malformation which, in turn, leads to high production losses of the medicinal herb Matricaria chamomilla in Serbia has enabled continuous experiments focusing on the pathogen and its biology. Peronospora radii was identified as the causal agent of the disease, and morphologically and molecularly characterized. Diseased chamomile flowers showed severe malformations of the disc and ray florets, including phyllody and secondary inflorescence formation, followed by the onset of downy mildew. Phylogeny, based on internal transcribed spacer and cox2, indicates clustering of the Serbian P. radii with other P. radii from chamomile although, in cox2 analyses, they formed a separate subcluster. Evidence pointing to systemic infection was provided through histological and molecular analyses, with related experiments validating the impact of soilborne and blossom infections. This study provides new findings in the biology of P. radii on chamomile, thus enabling the reconstruction of this floricolous Peronospora species' life cycle. PB - Amer Phytopathological Soc, St Paul T2 - Phytopathology T1 - Chamomile Floricolous Downy Mildew Caused by Peronospora radii EP - 1907 IS - 11 SP - 1900 VL - 109 DO - 10.1094/PHYTO-04-19-0138-R ER -
@article{ author = "Duduk, Bojan and Duduk, Nataša and Vico, Ivana and Stepanović, Jelena and Marković, Tatjana and Rekanović, Emil and Kube, Michael and Radanović, Dragoja", year = "2019", abstract = "Floricolous downy mildews (Peronospora, oomycetes) are a small, monophyletic group of mostly inconspicuous plant pathogens that induce symptoms exclusively on flowers. Characterization of this group of pathogens, and information about their biology, is particularly sparse. The recurrent presence of a disease causing flower malformation which, in turn, leads to high production losses of the medicinal herb Matricaria chamomilla in Serbia has enabled continuous experiments focusing on the pathogen and its biology. Peronospora radii was identified as the causal agent of the disease, and morphologically and molecularly characterized. Diseased chamomile flowers showed severe malformations of the disc and ray florets, including phyllody and secondary inflorescence formation, followed by the onset of downy mildew. Phylogeny, based on internal transcribed spacer and cox2, indicates clustering of the Serbian P. radii with other P. radii from chamomile although, in cox2 analyses, they formed a separate subcluster. Evidence pointing to systemic infection was provided through histological and molecular analyses, with related experiments validating the impact of soilborne and blossom infections. This study provides new findings in the biology of P. radii on chamomile, thus enabling the reconstruction of this floricolous Peronospora species' life cycle.", publisher = "Amer Phytopathological Soc, St Paul", journal = "Phytopathology", title = "Chamomile Floricolous Downy Mildew Caused by Peronospora radii", pages = "1907-1900", number = "11", volume = "109", doi = "10.1094/PHYTO-04-19-0138-R" }
Duduk, B., Duduk, N., Vico, I., Stepanović, J., Marković, T., Rekanović, E., Kube, M.,& Radanović, D.. (2019). Chamomile Floricolous Downy Mildew Caused by Peronospora radii. in Phytopathology Amer Phytopathological Soc, St Paul., 109(11), 1900-1907. https://doi.org/10.1094/PHYTO-04-19-0138-R
Duduk B, Duduk N, Vico I, Stepanović J, Marković T, Rekanović E, Kube M, Radanović D. Chamomile Floricolous Downy Mildew Caused by Peronospora radii. in Phytopathology. 2019;109(11):1900-1907. doi:10.1094/PHYTO-04-19-0138-R .
Duduk, Bojan, Duduk, Nataša, Vico, Ivana, Stepanović, Jelena, Marković, Tatjana, Rekanović, Emil, Kube, Michael, Radanović, Dragoja, "Chamomile Floricolous Downy Mildew Caused by Peronospora radii" in Phytopathology, 109, no. 11 (2019):1900-1907, https://doi.org/10.1094/PHYTO-04-19-0138-R . .