Role of Ca Resistance in Competitive Survival of Fluorescent Pseudomonads in Soil with High Salinity
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概要
- 論文の詳細を見る
The Ca[2+] strain HR2-6 of Pseudomonas putida was isolated from spinach root grown in greenhouse in high salinity soil. Since Ca ohten accumulates in greenhouse soils in Japan due to many years of Ca applications, the role of Ca[2+] resistance in the survival of the strain was investigated. To conduct the investigation, Ca[2+] -sensitive mutants were obtained with UV-irradiation. The Ca[2+], but woth 150mM and 200mM Ca[2+] added, the growth of the Ca[2+] -sensitive mutants were 7-and 56-fold lower than that of the wild type. In sterile spinach-greenhouse soil (a non-competitive environment), populations of the Ca[2+] -sensitive mutant and wild-type strain were similar, but in nonsterile greenhouse soil (a competitive environment), populations of the Ca[2+] -sensitive mutant were 112-fold lower than the wild type after 50days. These data suggest that Ca[2+] resistance can be an important factor in the survival of P. putida in soil that has an accumulation of Ca.
- 九州大学の論文
著者
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Sakai Masao
Laboratory Of Soil Microbiology Department Of Plant Resources Faculty Of Agriculture Kyushu Universi
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Kanazawa Shinjiro
Laboratory of Soil Microbiology,Division of Soil Science and Plant Production,Department of Plant Re
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Sakai Masao
Laboratory Of Soil Microbiology And Biochemistry Department Of Agricultural Chemistry Faculty Of Agr
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Kawaguchi Akira
Department Of Marine Sciences Faculty Of Science University Of The Ryukyus
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Kanazawa Shinjiro
Laboratory Of Soil Microbiology Division Of Soil Science And Plant Production Department Of Plant Re
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Kanazawa Shinjiro
Laboratory Of Soil Microbiology Department Of Plant Resources Faculty Of Agriculture Kyushu Universi
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Kawaguchi Akira
Department Of Appkied Physics Osaka University
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Kawaguchi Akira
Laboratory Of Soil Microbiology Division Of Soil Science And Plant Production Department Of Plant Re
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Akazawa Takanori
Laboratory of Soil Microbiology,Division of Soil Science and Plant Production,Department of Plant Re
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Kawaguchi Akira
Laboratory Of Plant Pathology And Entomology Agricultural Experiment Station Okayama Prefectural Gen
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Sakai Masao
Laboratory Of Soil Microbiology Division Of Soil Science And Plant Production Department Of Plant Re
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Akazawa Takanori
Laboratory Of Soil Microbiology Division Of Soil Science And Plant Production Department Of Plant Re
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Sakai Masao
Laboratory Of Soil Macrobiology And Biochemistry Department Of Agricultural Chemistry Faculty Of Agr
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Kanawaza Shinjiro
Laboratory of Soil Microbiology,Division of Soil Science and Plant Production,Department of Plant Resources,Faculty of Agriculture,Kyushu University
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