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Globisporangium oryzicola sp. nov., causing poor seedling establishment of directly seeded rice

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Abstract

A new species, Globisporangium oryzicola, was isolated from directly seeded rice seedlings, and from soils of paddy fields and an uncultivated field. Despite their different origins, five of the seven isolates studied caused poor seedling establishment of rice in a laboratory inoculation experiment. The species is characterized by oogonia with smooth-walled or sometimes one projection, with one to two antheridia, and aplerotic oospores. Hyphal swellings were rarely observed. Phylogenetic analyses based on the internal transcribed spacer region of the ribosomal RNA gene and mitochondrial cytochrome c oxidase subunit 1 and 2 genes confirmed that the species differed from other Globisporangium species. This novel species is described and illustrated in detail.

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Author notes

  1. Kazuhide Hata

    Present address: Research Center, Nihon Nohyaku Co.,Ltd., 345 Oyamada-cho, Kawachinagano, Osaka, 586-0094, Japan

Authors and Affiliations

  1. Genetic Resources Center, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan

    Shihomi Uzuhashi

  2. Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka, 599-8531, Japan

    Kazuhide Hata & Motoaki Tojo

  3. Agriculture Research Center, Hiroshima Prefectural Technology Research Institute, 6869 Hara Hachihonmatsu, Higashihiroshima, Hiroshima, 739-0151, Japan

    Shohei Matsuura

Authors
  1. Shihomi Uzuhashi
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  2. Kazuhide Hata
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  3. Shohei Matsuura
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  4. Motoaki Tojo
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Correspondence to Shihomi Uzuhashi.

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Uzuhashi, S., Hata, K., Matsuura, S. et al. Globisporangium oryzicola sp. nov., causing poor seedling establishment of directly seeded rice. Antonie van Leeuwenhoek 110, 543–552 (2017). https://doi.org/10.1007/s10482-016-0822-2

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  • DOI: https://doi.org/10.1007/s10482-016-0822-2

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