Skip Navigation
Skip to contents

Journal of Microbiology : Journal of Microbiology

OPEN ACCESS
SEARCH
Search
Advanced Search
mobile menu button

Articles

Page Path
HOME > J. Microbiol > Volume 50(1); 2012 > Article
Research Support, Non-U.S. Gov't
Growth Promotion of Xanthium italicum by Application of Rhizobacterial Isolates of Bacillus aryabhattai in Microcosm Soil
Sol Lee 1, Jong-Ok Ka 2, Hong-Gyu Song 1
Journal of Microbiology 2012;50(1):45-49.
DOI: https://doi.org/10.1007/s12275-012-1415-z
Published online: February 27, 2012
1Department of Biological Sciences, Kangwon National University, Chuncheon 200-701, Republic of Korea, 2Department of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Republic of Korea1Department of Biological Sciences, Kangwon National University, Chuncheon 200-701, Republic of Korea, 2Department of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Republic of Korea
Corresponding author:  Hong-Gyu Song , Tel: +82-33-250-8545, 
Received: 22 August 2011   • Accepted: 25 October 2011
prev next
  • 46 Views
  • 0 Download
  • 51 Crossref
  • 65 Scopus
Full Article

Abstract

This study was conducted using rhizobacteria, which are able to exert beneficial effects upon plant growth in the infertile soil collected from barren lakeside areas. Four strains of plant growth promoting bacteria were isolated from the rhizosphere of a common wild plant, Erigeron canadensis. Isolated strains LS9, LS11, LS12, and LS15 were identified as Bacillus aryabhattai by 16S rDNA sequence analysis. B. aryabhattai LS9, LS11, LS12, and LS15 could solubilize 577.9, 676.8, 623.6, and 581.3 mg/L of 0.5% insoluble calcium phosphate within 2 days of incubation. Production of indole acetic acid, a typical growth promoting phytohormone auxin, by strain LS15 was 471.3 mg/L in 2 days with the addition of auxin precursor L-tryptophan. All the strains also produced other phytohormones such as indole butyric acid, gibberellins, and abscisic acid, and strain LS15 showed the highest production rate of gibberellin (GA3), 119.0 μg/mg protein. Isolated bacteria were used in a microcosm test for growth of wild plant Xanthium italicum, which can be utilized as a pioneer plant in barren lands. Seed germination was facilitated, and the lengths of roots, and shoots and the dry weights of germinated seedlings after 16 days were higher than those of the uninoculated control plants. Root lengths of seedlings of X. italicum increased by 121.1% in LS11-treated samples after 16 days. This plant growth-promoting capability of B. aryabhattai strains may be utilized as an environmentally friendly means of revegetating barren lands, especially sensitive areas such as lakeside lands.

  • Cite this Article
    Cite this Article
    export Copy Download
    Close
    Download Citation
    Download a citation file in RIS format that can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Reference Manager.
    Format:
    • RIS — For EndNote, ProCite, RefWorks, and most other reference management software
    • BibTeX — For JabRef, BibDesk, and other BibTeX-specific software
    Include:
    • Citation for the content below
    Growth Promotion of Xanthium italicum by Application of Rhizobacterial Isolates of Bacillus aryabhattai in Microcosm Soil
    J. Microbiol. 2012;50(1):45-49.   Published online February 27, 2012
    DOI: https://doi.org/10.1007/s12275-012-1415-z
    Close
Related articles
Journal of Microbiology : Journal of Microbiology
© The Microbiological Society of Korea.
TOP