Characterization of Enterobacter intermedius MH8b and its use for the enhancement of heavy metals uptake by Sinapis alba L.

Tomasz Płociniczak, Aki Sinkkonen, Martin Romantschuk, Zofia Piotrowska-Seget

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    The aim of this study was to test whether the multiple-tolerant bacterium Enterobacter intermedius MH8b
    isolated from metal-contaminated soil is able to promote plant growth and enhance Zn, Cd and Cu uptake
    by Sinapis alba L. under laboratory conditions. Additionally, the mechanisms of the plant growth promotion
    and the ecological consequences of bioaugmentation were examined. MH8b exhibited the ability to
    produce 1-amino-cyclopropane-1-carboxylic acid deaminase, indole 3-acetic acid and hydrocyanic acid
    and was also able to solubilize inorganic phosphate. Soil inoculation with MH8b significantly increased
    plant biomass as well as the accumulation of Zn (32%) and Cd (94%) in plant shoots. DGGE and PLFA
    analysis revealed that the introduced MH8b had only a short-term influence on the structure of indigenous
    microbial communities. The plant growth-promoting properties of MH8b and its ability to increase
    the metal uptake connected with its long-term survival and its short-term impact on autochthonous
    microflora make the strain a good candidate for the promotion of plant growth and phytoremediation
    efficiency.
    Original languageEnglish
    JournalApplied Soil Ecology
    Volume63
    Pages (from-to)1-7
    Number of pages7
    ISSN0929-1393
    DOIs
    Publication statusPublished - Jan 2013
    MoE publication typeA1 Journal article-refereed

    Fields of Science

    • 1172 Environmental sciences

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