Significance and Regulation of Acids Production by Rock-Inhabited Fungi

Sazanova, Katerina V.; Vlasov, Dmitry Yu.; Osmolovskay, Natalia G.; Schiparev, Sergei M.; Rusakov, Alexey

doi:10.1007/978-3-319-24987-2_29

Cited by 11 publications

(9 citation statements)

References 15 publications

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“…An interaction of biogenic and abiogenic systems in nature and in laboratory conditions quite often leads to the formation of new materials, in particular mineral or minerallike species. Oxalate minerals, which are formed when the metabolic products of bacteria, micromycetes and lichens interact with rocks and minerals [21][22][23][24], can be regarded as a striking example of such interactions. Oxalic acid is not the only known product of the living cycle; organic acids such as acetic, citric, formic, and etc.…”

Section: Discussionmentioning

confidence: 99%

Biogenic Orthorhombic α-Calcium Formate from Sediments of Alkali Lake, Oregon, USA

et al. 2021

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Centimeter-sized crystals of orthorhombic calcium formate, α-Ca(HCO2)2 from Alkali Lake, Oregon, USA have been studied by means of powder and single-crystal X-ray diffraction analysis, infrared, and Raman spectroscopy. Based on the data on carbon isotope abundance in calcium formate and associated minerals, it was concluded that the formation of α-Ca(HCO2)2 may be a result of a combination of two factors: lake microbial metabolism and anthropogenic pollution with Agent Orange. Possible causes of stability of the low-density tetragonal β-Ca(HCO2)2 polymorph (formicaite) in boron ores are discussed.

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Section: Discussionmentioning

confidence: 99%

Biogenic Orthorhombic α-Calcium Formate from Sediments of Alkali Lake, Oregon, USA

et al. 2021

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“…In samples inoculated with A. niger, formation of calcium oxalate crystals is observed. The ability of A. niger to release oxalic acid and participate in biogenic crystallization of metal oxalates is well described [39][40][41][42][43].…”

Section: Discussionmentioning

confidence: 99%

Microorganisms in Superficial Deposits on the Stone Monuments in Saint Petersburg

et al. 2022

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The composition of superficial deposits in urban environment and their importance in the development of the lithobiotic community of microorganisms has been investigated. Polyols, organic acids, mono- and disaccharides, as well as some amino acids, are the predominant low molecular weight organic components in superficial deposits, although the conditions on the stone surface are undoubtedly oligotrophic. Superficial deposits accumulate heavy metals, including Fe, Mn, Zn, Cu, Pb, and Cd, in surface sediments, among which the potentially toxic elements Zn, Cu, and Pb are accumulated in rather high concentrations. On model of Aspergillus niger as an example, it was shown micromycetes are resistant to heavy metals and retain their physiological activity when grown on this substrate. According to cultural studies, as well as metagenomic analysis, stress-resistant fungi and dark organotrophic bacteria are the main inhabitants of surface sediments. Probably, in the conditions of accumulation of superficial deposits on the stone, these organisms are the main inhabitants of the surface of the stone. With the development of more multi-species lithobiotic communities, they form the core of these communities. In the urban environment this type of primary colonization of the stone is likely realized.

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“…Moreover, the stabilization of weddellite can be also facilitated by the presence of citric acid in the crystallization medium [37], which could be released by micromycetes that live on the surface of bedrock. Citric acid could be produced on the apatite substrate by Penicillium lanosum, Pseudogymnoascus pannorum, and Trichoderma koningii micromycetes (Table 2) [32,43].…”

Section: Discussionmentioning

confidence: 99%

Calcium Oxalates in Lichens on Surface of Apatite-Nepheline Ore (Kola Peninsula, Russia)

et al. 2019

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The present work contributes to the essential questions on calcium oxalate formation under the influence of lithobiont community organisms. We have discovered calcium oxalates in lichen thalli on surfaces of apatite-nepheline rocks of southeastern and southwestern titanite-apatite ore fields of the Khibiny peralkaline massif (Kola Peninsula, NW Russia) for the first time; investigated biofilm calcium oxalates with different methods (X-ray powder diffraction, scanning electron microscopy, and EDX analysis) and discussed morphogenetic patterns of its formation using results of model experiments. The influence of inorganic and organic components of the crystallization medium on the phase composition and morphology of oxalates has been analyzed. It was shown that, among the complex of factors controlling the patterns of biogenic oxalate formation, one of the main roles belongs to the metabolic activity of the lithobiont community organisms, which differs significantly from the activity of its individuals.

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Significance and Regulation of Acids Production by Rock-Inhabited Fungi

Cited by 11 publications

References 15 publications

Biogenic Orthorhombic α-Calcium Formate from Sediments of Alkali Lake, Oregon, USA

Biogenic Orthorhombic α-Calcium Formate from Sediments of Alkali Lake, Oregon, USA

Microorganisms in Superficial Deposits on the Stone Monuments in Saint Petersburg

Calcium Oxalates in Lichens on Surface of Apatite-Nepheline Ore (Kola Peninsula, Russia)

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