Diseases of Peonies

Garfinkel, Andrea R.; Chastagner, Gary A.

doi:10.1007/978-3-319-39670-5_46

Cited by 4 publications

(5 citation statements)

References 36 publications

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“…Our molecular confirmation of TRV infection in all plants that showed visual symptoms of TRV disease demonstrates the power of the visual diagnostics of this virus and reveals that the current incidence of TRV in the UMNA is low (1.07%). TRV affects the physiological well-being of the infected Paeonia plants, threatening their long-term fitness [ 15 ] and their ornamental value. They may also become a source of further infection to other plants in the collection or of native species in the area.…”

Section: Discussionmentioning

confidence: 99%

“…However, the foliar symptoms observed across all CNSV-infected cultivars were not equally developed, not even among biological replicates (plants of the same cultivar) planted adjacent to each other, which may reflect heterogeneity in viral properties, as reported among four CNSV isolates from gladiolus [ 38 ]. The roots of CNSV-infected plants at UMNA revealed symptoms like those described for Lemoine Disease in peonies [ 15 ], specifically, irregular swellings on tuberous and fine roots. The etiology of the Lemoine Disease is unknown [ 15 , 55 ], and thus its association with CNSV infection remains to be investigated.…”

Section: Discussionmentioning

confidence: 99%

“…The roots of CNSV-infected plants at UMNA revealed symptoms like those described for Lemoine Disease in peonies [ 15 ], specifically, irregular swellings on tuberous and fine roots. The etiology of the Lemoine Disease is unknown [ 15 , 55 ], and thus its association with CNSV infection remains to be investigated.…”

Section: Discussionmentioning

confidence: 99%

“…Over the last decade, there has been an increasing number of reports of viral diseases in cultivated peonies, including new viral pathogens and emergent infections in a broad geographical range [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. Among them, tobacco rattle virus (TRV, Tobravirus , Virgaviridae) is often reported in cultivated peonies worldwide, since its first report in peonies in New Zealand (reviewed in [ 25 ]) and Japan [ 26 ] in the middle of 20th century.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, CNSV co-infections with multiple viruses have been reported in tree peonies [ 17 ]. We have previously suggested that the Lemoine Disease of herbaceous peonies, which has an unresolved etiology but produces general stuntedness in the plant and a distortion of root growth [ 15 ], might be caused by a mixed infection [ 20 ], but its connection with the presence of CNSV remains unexplored.…”

Section: Introductionmentioning

confidence: 99%

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Co-Infection of Tobacco Rattle and Cycas Necrotic Stunt Viruses in Paeonia lactiflora: Detection Strategies, Potential Origins of Infection, and Implications for Paeonia Germplasm Conservation

Vlasava,

Michener,

Kharytonchyk

et al. 2024

Viruses

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Increasing reports of tobacco rattle virus (TRV) and cycas necrotic stunt virus (CNSV) in herbaceous Paeonia worldwide highlight the importance of conserving the genetic resources of this economically important ornamental and medicinal crop. The unknown origin(s) of infection, differential susceptibility of peony cultivars to these viruses, and elusive disease phenotypes for CNSV in peonies make early detection and management challenging. Here, we report the presence of TRV and CNSV in plants of the University of Michigan living peony collection in the United States and a molecular characterization of their strains. Using sequences of the TRV 194 K RNA polymerase gene, we confirmed TRV infections in seven symptomatic plants (1.07% of all plants in the collection). Using newly developed primers, we recovered sequences of the CNSV RdRp gene and the polyprotein 1 gene region from nine out of twelve samples analyzed, including three from symptomless plants. Four of the nine plants had TRV and CNSV co-infections and showed more severe disease symptoms than plants only infected with TRV. Phylogenetic analyses of isolates from the University of Michigan living peony collection and publicly available isolates point to multiple origins of TRV and CNSV infections in this collection. This is the first report of TRV/CNSV co-infection and of a symptomatic detection of CNSV on cultivated P. lactiflora.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Co-Infection of Tobacco Rattle and Cycas Necrotic Stunt Viruses in Paeonia lactiflora: Detection Strategies, Potential Origins of Infection, and Implications for Paeonia Germplasm Conservation

Vlasava,

Michener,

Kharytonchyk

et al. 2024

Viruses

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Integrated management of diseases and pests on ornamental geophytes: challenges and progress

Lakshman¹,

Cloyd²,

Chastagner³

2019

Acta Hortic.

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First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)

Kim

Park

et al. 2020

Res. Plant Dis

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In 2019, symptoms of Botrytis mold on the peony (Paeonia lactiflora Pall.) 'Sarah Bernhardt' were observed during a survey of the commercial greenhouses of Gangjin County, South Korea. The initial symptoms, small brown spots, were observed mainly at the leaf margins. The lesions extended to the interior of leaves forming irregular spots in which abundant conidia developed. Fungal colonies were obtained from surface-sterilized tissue excised from growing edges of the lesions that were transferred to potato dextrose agar. Melanized irregular sclerotia were formed in these colonies after 40 days at 8°C. Molecular phylogeny based on sequences of genes for glyceraldehyde-3-phosphate dehydrogenase, heat-shock protein 60, and RNA polymerase subunit II were highest for the PBC-2 isolate to the type strains of Botrytis cinerea, rather than other Botrytis species associated with peony diseases. Following Koch's postulates, healthy Sarah Bernhardt plants were inoculated with a foliar application of conidial suspensions of the isolate PBC-2. Following incubation under humidity with a 12 hr photoperiod for 7 days, symptoms developed on the leaf margins that were identical to those observed in the greenhouses. This study is the first report of Botrytis blight caused by B. cinerea on peonies grown in commercial greenhouses in South Korea.

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Diseases of Peonies

Cited by 4 publications

References 36 publications

Co-Infection of Tobacco Rattle and Cycas Necrotic Stunt Viruses in Paeonia lactiflora: Detection Strategies, Potential Origins of Infection, and Implications for Paeonia Germplasm Conservation

Co-Infection of Tobacco Rattle and Cycas Necrotic Stunt Viruses in Paeonia lactiflora: Detection Strategies, Potential Origins of Infection, and Implications for Paeonia Germplasm Conservation

Integrated management of diseases and pests on ornamental geophytes: challenges and progress

First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)

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