Host range of Frankia strains isolated from actinorhizal plants growing in Japan and their relatedness based on 16S rDNA(Soil Biology)

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概要

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• The host range of seven Frankia strains isolated from the root nodules of five actinorhizal plants in four genera growing in Japan and their relatedness based on 16S rDNA were examined. The Ceq1 strain isolated from Casuarina equisetifolia formed many nodules with high nitrogen fixation activity on the source host, C. equisetifolia. The Ceq1 strain formed nodules on Alnus sieboldiana, Alnus hirsta and Myrica rubra, but their nodulation ratio and nitrogen fixation activity were very low. The Asi1 strain isolated from A. sieboldiana, the Ahi1 strain isolated from A. hirsta, and the Mru1, Mru2 and Mru8 strains isolated from M. rubra formed many nodules on both Alnus species and M. rubra. The Ema2 strain isolated from Elaeagnus macrophylla formed nodules on both Elaeagnus species and M. rubra. Based on the aspect of nodulation and nitrogen fixation activity, Ceq1 strain is an effective strain only for Casuarina, five strains of Asi1, Ahi1, Mru1, Mru2 and Mru8 are effective strains for both Alnus and Myrica, and Ema2 strain is an effective strain for both Elaeagnus and Myrica. The results of phylogenetic analyses based on 16S rDNA sequences showed that seven strains were separated into two major clusters. Cluster 1 was further grouped into two subclusters, 1a and 1b. The Asi1, Ahi1, Mru1, Mru2 and Mru8 strains belonged to 1a and the Ceq1 strain belonged to cluster 1b. The Ema2 strain was classified into cluster 2. This phylogenetic classification of Frankia based on 16S rDNA sequences appears to be consistent with the host range determined using an inoculation test.

• 社団法人日本土壌肥料学会の論文

著者

• Tani Chiharu

  Okayama Univ. Okayama Jpn

• Tani Chiharu

  Division Of Bioscience Graduate School Of Natural Science And Technology Okayama University:(present

• Sasakawa Hideo

  Okayama Univ. Okayama Jpn

• Sasakawa Hideo

  Division Of Bioscience Graduate School Of Natural Science And Technology Okayama University

• NAGASHIMA Yuki

  Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

• YAMAMOTO Mikihiro

  Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

• Nagashima Yuki

  Division Of Bioscience Graduate School Of Natural Science And Technology Okayama University

• Yamamoto Mikihiro

  Division Of Bioscience Graduate School Of Natural Science And Technology Okayama University

関連論文

• Promotion of root elongation and ion uptake in rice seedlings by 4,4,4-trifluoro-3-(indole-3-)butyric acid(Plant Nutrition)
• Proline accumulates in Casuarina equisetifolia seedlings under salt stress(Plant Nutrition)
• Host range of Frankia strains isolated from actinorhizal plants growing in Japan and their relatedness based on 16S rDNA
• Host range of Frankia strains isolated from actinorhizal plants growing in Japan and their relatedness based on 16S rDNA(Soil Biology)

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