| Identification of Rhizobium phaseoli Strains That Are Tolerant or Sensitive to Soil Acidity. | |
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MedLine Citation:
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PMID: 16346239 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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A study was conducted to determine whether the survival of Rhizobium phaseoli in acid soils could be predicted on the basis of the tolerance of the organism to acidity in culture. Of 16 strains tested, all grew in culture at pH 4.6, but only those that grew at pH 3.8 survived in soils having pH values of 4.1 to 4.6. Strains that tolerated the lowest pH values in culture were tolerant of the highest aluminum concentrations. In one acid soil, an acid-tolerant strain was unable to survive in numbers greater than 100/g, but the poor survival was not related to the level of extractable aluminum or manganese in the soil. Reproduction of an acid-tolerant strain of R. phaseoli was enhanced in the rhizosphere of Phaseolus vulgaris in both acid and limed soils, but stimulation of an acid-sensitive strain by the plant occurred only in the limed soil. These results indicate that cultural tests can be used to predict the ability of R. phaseoli to survive in acid soil. |
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Authors:
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H S Lowendorf; M Alexander |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 45 ISSN: 0099-2240 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 1983 Mar |
Date Detail:
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Created Date: 2010-06-25 Completed Date: 2010-06-25 Revised Date: 2010-09-20 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: United States |
Other Details:
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Languages: eng Pagination: 737-42 Citation Subset: - |
Affiliation:
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Laboratory of Soil Microbiology, Department of Agronomy, Cornell University, Ithaca, New York 14853. |
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