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    Physiological responses to acid stress of an acid-soil tolerant and an acid-soil sensitive strain of Rhizobium leguminosarum biovar trifolii

    Access Status
    Fulltext not available
    Authors
    Watkin, Elizabeth
    O'Hara, G.
    Glenn, Andrew
    Date
    2003
    Type
    Journal Article
    
    Metadata
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    Citation
    Watkin, Elizabeth and O'Hara, G. and Glenn, Andrew. 2003. Physiological responses to acid stress of an acid-soil tolerant and an acid-soil sensitive strain of Rhizobium leguminosarum biovar trifolii. Soil Biology and Biochemistry. 35 (4): pp. 621-624.
    Source Title
    Soil Biology and Biochemistry
    DOI
    10.1016/S0038-0717(03)00012-9
    ISSN
    0038-0717
    Faculty
    Faculty of Health Sciences
    School of Biomedical Sciences
    Remarks

    The link to the journal's home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/332/description#description

    Copyright © 2003 Elsevier Ltd. All rights reserved

    URI
    http://hdl.handle.net/20.500.11937/7000
    Collection
    • Curtin Research Publications
    Abstract

    Physiological responses to acid stress in two strains of Rhizobium leguminosarum bv trifolii of differing acid-soil tolerance were compared. Acidity affected the size and morphology of the acid-tolerant strain, WSM409, but not of the acid-sensitive strain, TA1. Acid grown cells of WSM409 and TA1 had less cell-associated Ca and Mg and more P than cells grown at pH 7.0. Potassium content was lower in acid grown cells; WSM409 was less affected by pH than that in TA1. WSM409 was more tolerant of pH shock at pH 3.5 when grown at pH 4.8 than when grown at pH 7.0. TA1 was more sensitive to pH shock when grown at pH 4.8 than when grown at pH 7.0. WSM409 shows a characteristic adaptive acid tolerance response, whereas TA1 shows an acid sensitive response.

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