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Plectosphaerella rot of lettuce, coriander, and chervil caused by Plectosphaerella pauciseptata

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Abstract

Rot diseases of hydroponically cultured leaf lettuce, coriander, and chervil were found in Chiba Prefecture, Japan. Stems and petioles of the three diseased plants became brown or black with a soft rot, and vascular parts of the stems became discolored. Seemingly similar fungi were isolated from the diseased plants. Pathogenicity of these fungal isolates to each plant was demonstrated by inoculation tests. The fungi were identified as Plectosphaerella pauciseptata based on morphological and cultural characters. This identification was supported by phylogenetic analysis with rDNA ITS1-5.8S-ITS2 regions. The diseases were named Plectosphaerella rot (Plectosphaerella huhai-byo in Japanese) of lettuce, coriander, and chervil.

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Authors and Affiliations

  1. Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba, 271-8510, Japan

    Toshiyuki Usami, Satomi Morii & Yoshimiki Amemiya

  2. Faculty of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba, 271-8510, Japan

    Chizumi Matsubara

Authors
  1. Toshiyuki Usami
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  2. Satomi Morii
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  3. Chizumi Matsubara
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  4. Yoshimiki Amemiya
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Corresponding author

Correspondence to Toshiyuki Usami.

Additional information

The nucleotide sequence data reported are available in the DDBJ/EMBL/GenBank databases under accession numbers AB639154–AB639158 and AB685479.

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Usami, T., Morii, S., Matsubara, C. et al. Plectosphaerella rot of lettuce, coriander, and chervil caused by Plectosphaerella pauciseptata . J Gen Plant Pathol 78, 368–371 (2012). https://doi.org/10.1007/s10327-012-0395-5

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  • DOI: https://doi.org/10.1007/s10327-012-0395-5

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