Influence of aluminum on motility and swarming of Pseudomonas sp. and Arthrobacter sp.

Illmer, Paul; Schinner, Franz

doi:10.1111/j.1574-6968.1997.tb12695.x

Cited by 16 publications

(3 citation statements)

References 16 publications

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“…16S-rDNA sequence analysis indicates a close relationship of the organisms to A. globiformis. Whereas the Al-sensitive species Arth1 has been used in former investigations (ILLMER and SCHINNER 1997, ERLEBACH et al 2000, ILLMER and ERLEBACH 2003) the tolerant species is described within this manuscript for the first time.…”

Section: Methodsmentioning

confidence: 99%

“…Up until now, it has been an unsolved problem to clearly distinguish between pH-and Al-effects (HÖRNSTRÖM et al1995, ILLMER andSCHINNER 1997), as Al availability is on the one hand a function of pH and on the other hand distinctly influences the acidity of solutions (see Fig. 2 pH at t = 0) (MARTIN 1986, HARRIS et al 1996.…”

Section: Effects Of Al and Phmentioning

confidence: 99%

“…Fortunately, Al-toxicity is not significant at a physiological pH, as the solubility of the ion commonly thought to be the toxic species (Al(H 2 O) 6 3+ short: Al 3+ ) is very low (3 × 10 -12 M at pH = 7.4; MARTIN 1986). Thus, Al-toxicity is usually restricted to acidic conditions, which in turn, complicates the distinction between the toxic effects of Al 3+ and H + (GREGER et al 1992, ILLMER and SCHINNER 1997, LAZOF and HOLLAND 1999. Like other metals, monomeric Al III ions hydrolyze according to the (simplified) pH-dependent reaction (MARTIN 1986 (FURRER et al 1992, PARKER andBERTSCH 1992).…”

mentioning

confidence: 99%

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Effect of temperature and pH on the toxicity of aluminium towards two new, soil born species of Arthrobacter sp.

Illmer

Mutschlechner

2004

J. Basic Microbiol.

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Two coryneform bacteria Arthrobacter sp. PI/1-95 (Arth1) and Arthrobacter sp. PI/3 -95 (Arth3) were isolated from forest soil characterized and investigated with respect to their reaction towards aluminium (Al). Sigmoid functions were used to describe dose-response relationships between Al concentration and microbial growth and to calculate EC-values. EC 100 -indicating a complete inhibition of microbial growth -varied between 185 µM Al for Arth1 and 11 mM Al for Arth3. A pure pH effect seems probable in connection with the sensitive Arth1 but not with the tolerant species Arth3. Temperature was shown to distinctly increase the toxic effects of Al towards Arth3 whereas only a moderate modification in Al-toxicity was observed with Arth1.

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Section: Methodsmentioning

confidence: 99%

Section: Effects Of Al and Phmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of temperature and pH on the toxicity of aluminium towards two new, soil born species of Arthrobacter sp.

Illmer

Mutschlechner

2004

J. Basic Microbiol.

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Interactions of phosphate solubilising microorganisms with natural rare-earth phosphate minerals: a study utilizing Western Australian monazite

Corbett

Eksteen

Niu

et al. 2017

Bioprocess Biosyst Eng

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Many microbial species are capable of solubilising insoluble forms of phosphate and are used in agriculture to improve plant growth. In this study, we apply the use of known phosphate solubilising microbes (PSM) to the release of rare-earth elements (REE) from the rare-earth phosphate mineral, monazite. Two sources of monazite were used, a weathered monazite and mineral sand monazite, both from Western Australia. When incubated with PSM, the REE were preferentially released into the leachate. Penicillum sp. released a total concentration of 12.32 mg L rare-earth elements (Ce, La, Nd, and Pr) from the weathered monazite after 192 h with little release of thorium and iron into solution. However, cultivation on the mineral sands monazite resulted in the preferential release of Fe and Th. Analysis of the leachate detected the production of numerous low-molecular weight organic acids. Gluconic acid was produced by all microorganisms; however, other organic acids produced differed between microbes and the monazite source provided. Abiotic leaching with equivalent combinations of organic acids resulted in the lower release of REE implying that other microbial processes are playing a role in solubilisation of the monazite ore. This study demonstrates that microbial solubilisation of monazite is promising; however, the extent of the reaction is highly dependent on the monazite matrix structure and elemental composition.

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Tree Species Effects on Soil Organic Matter Dynamics: The Role of Soil Cation Composition

et al. 2007

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Influence of aluminum on motility and swarming of Pseudomonas sp. and Arthrobacter sp.

Cited by 16 publications

References 16 publications

Effect of temperature and pH on the toxicity of aluminium towards two new, soil born species of Arthrobacter sp.

Effect of temperature and pH on the toxicity of aluminium towards two new, soil born species of Arthrobacter sp.

Interactions of phosphate solubilising microorganisms with natural rare-earth phosphate minerals: a study utilizing Western Australian monazite

Tree Species Effects on Soil Organic Matter Dynamics: The Role of Soil Cation Composition

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