First Report of Stem Canker on Phoenix Tree (Firmiana simplex) Caused by Fusarium oxysporum in China

A stem canker disease was observed on the phoenix trees located in the region of Dezhou, Shandong province. Symptomatic stems were collected and evaluated for the possible casual agent of the disease. A fungus resembling Fusarium sp. was consistently isolated from pieces of symptomatic tissues. The...

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Bibliographic Details
Published inJournal of phytopathology Vol. 161; no. 2; pp. 128 - 130
Main Authors Zhang, Li-Xin, Song, Jiang-Hua, Shen, Jing-Ting, Tan, Gen-Jia, Li, Sha-Sha, Ding, Fei
Format Journal Article
LanguageEnglish
Published Berlin Blackwell Publishing Ltd 01.02.2013
Wiley Subscription Services, Inc
Subjects
canker
Firmiana simplex
Fusarium oxysporum
identification
Pathogens
phoenix tree
Solanum tuberosum
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Summary:A stem canker disease was observed on the phoenix trees located in the region of Dezhou, Shandong province. Symptomatic stems were collected and evaluated for the possible casual agent of the disease. A fungus resembling Fusarium sp. was consistently isolated from pieces of symptomatic tissues. The fungus formed abundant aerial mycelium on potato dextrose agar and produced the micro‐ and macro‐conidia on carnation leaf agar. The nucleotide sequences of the internal transcribed spacer of the rDNA from three representative isolates showed 100% identical to those of Fusarium oxysporum isolates deposited in the GenBank database. On the basis of morphological characteristics, pathogenicity test and molecular identification, the causal agent was identified as F. oxysporum. To our knowledge, this is the first report of stem canker on phoenix tree caused by F. oxysporum in China.
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ArticleID:JPH12033
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ISSN:0931-1785
1439-0434
DOI:10.1111/jph.12033