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Hokkaido University Collection of Scholarly and Academic Papers >
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Characterization and ecological role of free-living nitrogen-fixing bacteria isolated from the rhizoplane of Melastoma malabathricum inhabiting acidic plain lands in Kalimantan
| Title: | Characterization and ecological role of free-living nitrogen-fixing bacteria isolated from the rhizoplane of Melastoma malabathricum inhabiting acidic plain lands in Kalimantan |
| Authors: | Hashidoko, Yasuyuki Browse this author →KAKEN DB | | Gotou, Yukako Browse this author | | Osaki, Mitsuru Browse this author →KAKEN DB | | Purnomo, Erry Browse this author | | Suwido, Limin H. Browse this author | | Tahara, Satoshi Browse this author |
| Keywords: | Acid–sulfate soil | | Burkholderia cepacia | | Melastoma malabathricum | | Rhizoplane bacterium | | Sphingomonas rosa |
| Issue Date: | 30-Sep-2006 |
| Publisher: | 日本熱帯生態学会 |
| Journal Title: | Tropics |
| Volume: | 15 |
| Issue: | 4 |
| Start Page: | 365 |
| End Page: | 369 |
| Publisher DOI: | 10.3759/tropics.15.365 |
| Abstract: | The rhizoplane microorganisms of Melastoma malabathricum, distributing throughout the acid sulfate and peat soils of South Kalimantan, Indonesia, were investigated, using a soft gel media of N-free Winogradsky's mineral solution solidified with 0.3 % gellan gum. Two bacteria, Sphingomonas rosa EC-K013 and Burkholderia cepacia EC-K014 belonging to the subclasses of α- and β-Proteobacteria, respectively, emerged in the nitrogen-free medium. Inoculation of S. rosa EC-K013 in the M. malabathricum seedlings grown in N-free, 1/4 Hoagland's No. 2 medium (pH 3.0) resulted in better growth of the seedlings. In the soft gel medium, EC-K013 also stimulated the growth of a root-associating fungus, tentatively identified as Nectria sp. and a nitrogen-fixer, Mesorhizobium sp., suggesting that S. rosa plays an important role in promotion of microfloral devlopment around the rhizosphere of some acidic soil-adapting plants. |
| Rights: | © 2006 日本熱帯生態学会 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/35161 |
| 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)
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Submitter: 橋床 泰之
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