Frequent isolation of sphingomonads from local rice varieties and other weeds grown on acid sulfate soil in South Kalimantan, Indonesia
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- HASHIDOKO Yasuyuki
- Graduate School of Agriculture, Hokkaido University
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- HAYASHI Hiroki
- Graduate School of Agriculture, Hokkaido University
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- HASEGAWA Toshihiro
- Graduate School of Agriculture, Hokkaido University
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- PURNOMO Erry
- Center for Tropical Acid Soil Studies, Faculty of Agriculture, UNLAM
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- OSAKI Mitsuru
- Graduate School of Agriculture, Hokkaido University
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- TAHARA Satoshi
- Graduate School of Agriculture, Hokkaido University
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We preliminarily investigated the correlation between productivity and the diversity of free-living nitrogen-fixing bacteria on the rhizoplane of local rice varieties, including Siam Unus, Siam Adil and Siam Pandak, all tolerable to acid-sulfate soil in South Kalimantan, Indonesia. The rhizobacteria of some unidentified weeds of native-grown in the acidic paddocks were also searched. Subsequently, sphingomonads, including Sphingomonas spp. and Sphingobium spp., are found as the most dominant rhizobacteria in local rice and also in weeds that are adapted to the strongly acidic wet soil. Other unique rhizobacteria are Alcaligenes spp. that powerfully neutralized their cultured media. To understand how the local variety of paddy rice can tolerate acid-sulfate soils with very low soil pH (2.5-3.5), studies of these acid-tolerant, root-associating, and often nitrogen-fixing, rhizospherous bacteria are likely to be important key factors.
収録刊行物
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- Tropics
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Tropics 15 (4), 391-395, 2006
日本熱帯生態学会
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詳細情報 詳細情報について
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- CRID
- 1390001204422562432
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- NII論文ID
- 130004541868
- 10020131318
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- NII書誌ID
- AN10528811
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- ISSN
- 18825729
- 0917415X
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- HANDLE
- 2115/35162
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- NDL書誌ID
- 8747356
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 使用不可