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Soft rot of root chicory in Hokkaido and its causal bacteria

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Title: Soft rot of root chicory in Hokkaido and its causal bacteria
Authors: Lan, Wei Wei Browse this author
Nishiwaki, Yoshie Browse this author
Akino, Seishi Browse this author →KAKEN DB
Kondo, Norio Browse this author →KAKEN DB
Keywords: Dickeya dianthicola
Pectobacterium carotovorum subspecies
Soft rot
Chicory root
Bacterial wilt
Issue Date: May-2013
Publisher: Springer
Volume: 79
Issue: 3
Start Page: 182
End Page: 193
Publisher DOI: 10.1007/s10327-013-0440-z
Abstract: In August 2010, bacterial soft rot was found on root chicory (Cichorium intybus var. sativum) in Hokkaido, Japan. Severely infected plants in fields were discolored, had wilted foliage, and black necrosis of petioles near the crown. Wilted leaves subsequently collapsed and died, forming a dry, brown or black rosette. The root and crown became partially or wholly soft-rotted. Slimy masses on infected areas of roots, turned dark brown or black. Gram-negative, rod-shaped, peritrichously flagellated, facultatively anaerobic bacteria were exclusively isolated from rotted roots, and typical symptoms were reproduced after inoculation with the strains. The bacteria were identified as Dickeya dianthicola, Pectobacterium carotovorum subsp. carotovorum, and Pectobacterium carotovorum subsp. odoriferum based on further bacteriological characterization and the sequence analysis of the malate dehydrogenase gene and 16S rRNA gene. These bacteria should be included with the previously reported Dickeya (=Erwinia) chrysanthemi in Saitama Prefecture, Japan, as causal pathogens of bacterial wilt of chicory.
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 近藤 則夫

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