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Phytoextraction of heavy metal polluted soils using Sedum plumbizincicola inocu...
Ma, Ying; Rajkumar, Mani; Luo, Yongming; Freitas, H.The aim of this study was to investigate the effects of metal mobilizing plant-growth beneficial bacterium Phyllobacterium myrsinacearum RC6b on plant growth and Cd, Zn and Pb uptake by Sedum plumbizincicola under laboratory conditions. Among a collection of metal-resistant bacteria, P. myrsinacearum RC6b was specifically chosen as a most favorable metal mobilizer based on its capability of mobilizing high conc...
Improvement of Ni phytostabilization by inoculation of Ni resistant Bacillus me...
Rajkumar, Mani; Ma, Ying; Freitas, H.The use of metal tolerant plants for the phytostabilization of metal contaminated soil is an area of extensive research and development. In this study the effects of inoculation of Ni-resistant bacterial strains on phytostabilization potential of various plants, including Brassica juncea, Luffa cylindrica and Sorghum halepense, were studied. A Ni-resistant bacterial strain SR28C was isolated from a nickel rich ...
Isolation and characterization of Ni mobilizing PGPB from serpentine soils and ...
Ma, Ying; Rajkumar, Mani; Freitas, Helenahttp://www.sciencedirect.com/science/article/B6V74-4VM7YD5-8/2/e1ca05a69cb6525dc94491bd65e22fe7
Improvement of plant growth and nickel uptake by nickel resistant-plant-growth ...
Ma, Ying; Rajkumar, Mani; Freitas, Helenahttp://www.sciencedirect.com/science/article/B6TGF-4V3HFG2-C/2/5158c47dafc5cd8bcc1419a12884dd97
Effects of inoculation of plant-growth promoting bacteria on Ni uptake by India...
Rajkumar, Mani; Freitas, HelenaIn this study, among a collection of Ni resistant bacterial strains isolated from serpentine soil, two plant growth promoting bacteria (PGPB), Ps29C and Bm4C were selected based on their ability to utilize ACC as the sole N source and promote seedling growth in roll towel assay. The Ni resistant PGPB, Ps29C and Bm4C were characterized as Pseudomonas sp. and Bacillus megaterium, respectively, on the basis of the...
Inoculation of plant growth promoting bacterium Achromobacter xylosoxidans stra...
Ma, Ying; Rajkumar, Mani; Freitas, HelenaIn this study, a copper-resistant plant growth promoting bacterial (PGPB) strain Ax10 was isolated from a Cu mine soil to assess its plant growth promotion and copper uptake in Brassica juncea. The strain Ax10 tolerated concentrations up to 600 mg Cu L-1 on a Luria-Bertani (LB) agar medium and utilized 1-aminocyclopropane-1-carboxylic acid (ACC) as a sole N source in DF salts minimal medium. The strain Ax10 was...
Influence of metal resistant-plant growth-promoting bacteria on the growth of R...
Rajkumar, Mani; Freitas, HelenaThe metal resistant-plant growth-promoting bacterial (PGPB) strains PsM6 and PjM15 isolated from a serpentine soil were characterized as Pseudomonas sp. and Pseudomonas jessenii, respectively, on the basis of their morphological, physiological, biochemical characteristics and 16S rDNA sequences. Assessment of plant growth-promoting parameters revealed the intrinsic ability of the strains for the utilization of ...
Characterization of metal-resistant plant-growth promoting Bacillus weihensteph...
Rajkumar, Mani; Ma, Ying; Freitas, HelenaA metal-resistant bacterial strain SM3 isolated from a serpentine soil in the north-east of Portugal was characterized as Bacillus weihenstephanensis based on the morphological and biochemical characteristics and on the comparative analysis of the partial 16S ribosomal DNA sequence. Bacillus weihenstephanensis SM3 showed a high degree of resistance to nickel (1500 mg l-1), copper (500 mg l-1) and zinc (700 mg l...
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