Zinc oxalate crystal formation by aspergillus nomius

Thanawat Sutjaritvorakul; Geoffrey M. Gadd; Anthony J S Whalley; Kallaya Suntornvongsagul; Prakitsin Sihanonth

doi:10.1080/01490451.2015.1048395

Zinc oxalate crystal formation by aspergillus nomius

Thanawat Sutjaritvorakul, Geoffrey M. Gadd, Anthony J S Whalley, Kallaya Suntornvongsagul, Prakitsin Sihanonth (Lead / Corresponding author)

Molecular Microbiology

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This research investigated the ability of an Aspergillus species, isolated from zinc-containing mineral ore, for its ability to transform insoluble zinc oxide (ZnO). It was plated on potato dextrose agar (PDA) medium supplemented with 0.5% (w/v) zinc oxide. Mycogenic crystals were observed under colonies grown in zinc oxide-amended plates. These crystals were investigated by scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD) and identified as zinc oxalate. When compared with zinc oxalate produced by an abiotic reaction, it was found that the crystals were different in their morphology. The production of organic acids in the culture medium was analyzed by high performance liquid chromatography (HPLC). Organic acids are known to be directly involved in metal transformations, especially oxalic acid which plays an important role in metal mobilization and immobilization processes. Increasing heavy metal concentrations in the culture medium caused a significant decrease in the biomass yield. The Aspergillus was identified as Aspergillus nomius, which has not been previously reported regarding heavy metal compound transformation ability.

Original language	English
Pages (from-to)	289-293
Number of pages	5
Journal	Geomicrobiology Journal
Volume	33
Issue number	3-4
DOIs	https://doi.org/10.1080/01490451.2015.1048395
Publication status	Published - 2016

Keywords

Aspergillus nomius transformation
Tolerance
Zinc compound
Zinc oxalate

ASJC Scopus subject areas

Earth and Planetary Sciences (miscellaneous)
Microbiology
General Environmental Science
Environmental Chemistry

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10.1080/01490451.2015.1048395

Cite this

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title = "Zinc oxalate crystal formation by aspergillus nomius",

abstract = "This research investigated the ability of an Aspergillus species, isolated from zinc-containing mineral ore, for its ability to transform insoluble zinc oxide (ZnO). It was plated on potato dextrose agar (PDA) medium supplemented with 0.5% (w/v) zinc oxide. Mycogenic crystals were observed under colonies grown in zinc oxide-amended plates. These crystals were investigated by scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD) and identified as zinc oxalate. When compared with zinc oxalate produced by an abiotic reaction, it was found that the crystals were different in their morphology. The production of organic acids in the culture medium was analyzed by high performance liquid chromatography (HPLC). Organic acids are known to be directly involved in metal transformations, especially oxalic acid which plays an important role in metal mobilization and immobilization processes. Increasing heavy metal concentrations in the culture medium caused a significant decrease in the biomass yield. The Aspergillus was identified as Aspergillus nomius, which has not been previously reported regarding heavy metal compound transformation ability.",

keywords = "Aspergillus nomius transformation, Tolerance, Zinc compound, Zinc oxalate",

author = "Thanawat Sutjaritvorakul and Gadd, {Geoffrey M.} and Whalley, {Anthony J S} and Kallaya Suntornvongsagul and Prakitsin Sihanonth",

year = "2016",

doi = "10.1080/01490451.2015.1048395",

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journal = "Geomicrobiology Journal",

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AU - Sutjaritvorakul, Thanawat

AU - Gadd, Geoffrey M.

AU - Whalley, Anthony J S

AU - Suntornvongsagul, Kallaya

AU - Sihanonth, Prakitsin

PY - 2016

Y1 - 2016

N2 - This research investigated the ability of an Aspergillus species, isolated from zinc-containing mineral ore, for its ability to transform insoluble zinc oxide (ZnO). It was plated on potato dextrose agar (PDA) medium supplemented with 0.5% (w/v) zinc oxide. Mycogenic crystals were observed under colonies grown in zinc oxide-amended plates. These crystals were investigated by scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD) and identified as zinc oxalate. When compared with zinc oxalate produced by an abiotic reaction, it was found that the crystals were different in their morphology. The production of organic acids in the culture medium was analyzed by high performance liquid chromatography (HPLC). Organic acids are known to be directly involved in metal transformations, especially oxalic acid which plays an important role in metal mobilization and immobilization processes. Increasing heavy metal concentrations in the culture medium caused a significant decrease in the biomass yield. The Aspergillus was identified as Aspergillus nomius, which has not been previously reported regarding heavy metal compound transformation ability.

AB - This research investigated the ability of an Aspergillus species, isolated from zinc-containing mineral ore, for its ability to transform insoluble zinc oxide (ZnO). It was plated on potato dextrose agar (PDA) medium supplemented with 0.5% (w/v) zinc oxide. Mycogenic crystals were observed under colonies grown in zinc oxide-amended plates. These crystals were investigated by scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD) and identified as zinc oxalate. When compared with zinc oxalate produced by an abiotic reaction, it was found that the crystals were different in their morphology. The production of organic acids in the culture medium was analyzed by high performance liquid chromatography (HPLC). Organic acids are known to be directly involved in metal transformations, especially oxalic acid which plays an important role in metal mobilization and immobilization processes. Increasing heavy metal concentrations in the culture medium caused a significant decrease in the biomass yield. The Aspergillus was identified as Aspergillus nomius, which has not been previously reported regarding heavy metal compound transformation ability.

KW - Aspergillus nomius transformation

KW - Tolerance

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KW - Zinc oxalate

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JO - Geomicrobiology Journal

JF - Geomicrobiology Journal

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ER -

Zinc oxalate crystal formation by aspergillus nomius

Abstract

Keywords

ASJC Scopus subject areas

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COG3: The Geology, Geometallurgy and Geomicrobiology of Cobalt Resources Leading to New Product Streams (joint with Natural History Museum and Universities of Manchester, Bangor, Exeter, Loughborough and Southampton and Industrial Partner)

Tellurium and Selenium Cycling and Supply (Joint with Universities of Leicester, Durham, Edinburgh, Cardiff, Aberdeen and Open University and Natural History Museum)

Cite this

Zinc oxalate crystal formation by aspergillus nomius

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

COG3: The Geology, Geometallurgy and Geomicrobiology of Cobalt Resources Leading to New Product Streams (joint with Natural History Museum and Universities of Manchester, Bangor, Exeter, Loughborough and Southampton and Industrial Partner)

Tellurium and Selenium Cycling and Supply (Joint with Universities of Leicester, Durham, Edinburgh, Cardiff, Aberdeen and Open University and Natural History Museum)

Cite this