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

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 t...

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Main Authors: Hyo Jeong Kim, Min Young Park, Kyung-Cheol Ma, Young Cheol Kim
Format: Article
Language:English
Published: Hanrimwon Publishing Company 2020-12-01
Series:Research in Plant Disease
Subjects:
Online Access:http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.4.279
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author Hyo Jeong Kim
Min Young Park
Kyung-Cheol Ma
Young Cheol Kim
author_facet Hyo Jeong Kim
Min Young Park
Kyung-Cheol Ma
Young Cheol Kim
author_sort Hyo Jeong Kim
collection DOAJ
description 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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spelling doaj.art-6faa9fd367ae43289d08d4b1b9ac2f4b2022-12-22T03:14:40ZengHanrimwon Publishing CompanyResearch in Plant Disease1598-22622020-12-0126427928210.5423/RPD.2020.26.4.27910.5423RPD.2020.26.4.279First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)Hyo Jeong Kim0Min Young Park1Kyung-Cheol Ma2Young Cheol Kim3Environment-Friendly Agriculture Research Institute, Jeollanamdo Agricultural Research & Extension Services, Naju 58213, Koreaorticultural Research Institute, Jeollanamdo Agricultural Research & Extension Services, Naju 58213, Koreaorticultural Research Institute, Jeollanamdo Agricultural Research & Extension Services, Naju 58213, KoreaDepartment of Applied Biology, Chonnam National University, Gwangju 61186, KoreaIn 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.http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.4.279botrytis moldpaeonia lactiflorapeony
spellingShingle Hyo Jeong Kim
Min Young Park
Kyung-Cheol Ma
Young Cheol Kim
First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
Research in Plant Disease
botrytis mold
paeonia lactiflora
peony
title First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
title_full First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
title_fullStr First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
title_full_unstemmed First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
title_short First Report of Botrytis Mold Caused by Botrytis cinerea on Peonies (Paeonia lactiflora Pall.)
title_sort first report of botrytis mold caused by botrytis cinerea on peonies paeonia lactiflora pall
topic botrytis mold
paeonia lactiflora
peony
url http://www.online-rpd.org/journal/view.html?doi=10.5423/RPD.2020.26.4.279
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