First report of stem blight on Joseph’s coat amaranth (Amaranthus tricolor L.) caused by Diaporthe amaranthophila (Inácio, Dianese & Carlos) Rossman & Udayanga in Japan

In September 2015, stem blight was found on Joseph’s coat amaranth ( Amaranthus tricolor ) in Kanagawa, Japan. A fungus was isolated from brown spots on the stems and leaves. After our inoculation tests using the isolated fungus, the same symptoms were observed in the field. The pathogen was identif...

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Bibliographic Details
Published in:Journal of general plant pathology : JGPP 2020, Vol.86 (1), p.70-75
Main Authors: Minoshima, Ayaka, Orihara, Noriko, Minoguchi, Kaoru, Ishikawa, Seiju, Hirooka, Yuuri
Format: Article
Language:English
Subjects:
Agriculture
Amaranth
Amaranthus tricolor
Biomedical and Life Sciences
Blight
Diaporthe
Disease Note
Fungi
Inoculation
Life Sciences
Microbiology
Pathogens
Plant Pathology
Stem blight
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Summary:In September 2015, stem blight was found on Joseph’s coat amaranth ( Amaranthus tricolor ) in Kanagawa, Japan. A fungus was isolated from brown spots on the stems and leaves. After our inoculation tests using the isolated fungus, the same symptoms were observed in the field. The pathogen was identified as Diaporthe amaranthophila based on morphological and molecular analyses. This is the first report of D . amaranthophila as a pathogen of stem blight on Joseph’s coat amaranth in Japan.
ISSN:1345-2630
1610-739X
DOI:10.1007/s10327-019-00885-3