Adaptive mechanisms of nonspecific resistance to heavy metal ions in alkanotrophic actinobacteria

Ившина, И. Б.; Kuyukina, Maria S.; Kostina, L. V.

doi:10.1134/s1067413613020082

Cited by 23 publications

(13 citation statements)

References 10 publications

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“…Bulk lignocellulose materials are more accessible for decomposition by filamentous microorganisms such as fungi and Actinobacteria (de Boer et al 2005), and efficient growth on straw was indeed demonstrated for environmental isolates of Actinobacteria (Větrovský et al 2014). Filamentous mycelial growth, the ability to form spores and a powerful secondary metabolism also represent suitable traits for the survival of Actinobacteria under stress conditions such as heavy metal-contaminated soils, for which these bacteria have also developed several resistance mechanisms (Bajkic et al 2013;Ivshina et al 2013;Schmidt et al 2005).…”

Section: Introductionmentioning

confidence: 96%

An in-depth analysis of actinobacterial communities shows their high diversity in grassland soils along a gradient of mixed heavy metal contamination

Větrovský

Baldrián

2015

Biol Fertil Soils

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Several previous studies indicated that Actinobacteria may be enriched in soils with elevated content of heavy metals. In this study, we have developed a method for the in-depth analysis of actinobacterial communities in soil through phylum-targeted high-throughput sequencing and used it to address this question and examine the community composition in grassland soils along a gradient of heavy metal contamination (Cu, Zn, Cd, Pb). The use of the 16Sact111r primer specific for Actinobacteria resulted in a dataset obtained by pyrosequencing where over 98 % of the sequences belonged to Actinobacteria. The diversity within the Actinobacterial community was not affected by the heavy metals, but the contamination was the most important factor affecting community composition. The most significant changes in community composition were due to the content of Cu and Pb, while the effects of Zn and Cd were relatively minor. For the most abundant actinobacterial taxa, the abundance of taxa identified as members of the genera Acidothermus, Streptomyces, Pseudonocardia, Janibacter and Microlunatus increased with increasing metal content, while t hose belonging to Jatrophihabitans and Actinoallomurus decreased. The genus Ilumatobacter contained operational taxonomic units (OTUs) that responded to heavy metals both positively and negatively. This study also confirmed that Actinobacteria appear to be less affected by heavy metals than other bacteria. Because several Actinobacteria were also identified in playing a significant role in cellulose and lignocellulose decomposition in soil, they potentially represent important decomposers of organic matter in such environments.

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Section: Introductionmentioning

confidence: 96%

An in-depth analysis of actinobacterial communities shows their high diversity in grassland soils along a gradient of mixed heavy metal contamination

Větrovský

Baldrián

2015

Biol Fertil Soils

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“…Gordonia sp. a minor growth compared to control was observed with both salts, however growth with FeCl 2 was better than with FeSO 4 , this behavior is because according to Ivshina et al (2013) Rhodococcus genera is more tolerant to the presence of heavy metals than Gordonia genus (Fig. 1).…”

Section: Resultsmentioning

confidence: 88%

“…the change was from orange to red. The change in the color of the colonies could be an evidence of the carotenoids activity in biological binding of metal ions (Hernández-Marin et al, 2012;Ivshina et al, 2013). According to Schmidt et al (2005) and Ivshina et al (2013), to maintain the homeostasis within the cell, microorganisms must keep the reactive heavy metals at an optimal subtoxic level, by the formation of intracellular metal nonharmful complexes (Wang et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…A possible mechanism of bacteria to reach homeostasis in the presence of iron salts, is by the formation of non-harmful complexes between xanthophylls and iron (Polyakov et al, 2010;Hernández-Marín et al, 2012;Ivshina et al, 2013). These complexes can also affect the UV-Vis spectra of carotenoids changing the λmax (Polyakov et al, 2010), as was observed in UV-Vis spectra of Carotenoid 2 of Rhodococcus sp.…”

Section: Uv-vis Spectra Of Carotenoids Obtained With and Without Iron Saltsmentioning

confidence: 96%

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Efect of iron salts on Rhodococcus sp. And Grodonia sp. On carotenoid production

Ortega-Cabello¹,

Pérez-Méndez²,

Manjarrez-Alvarez³

et al. 2016

Rev.Mex.Ing.Quim.

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“…Fe concentration and high Mn is likely caused by mining activities, especially when returning overburden, so that it can have a toxic effect on the activity of soil microorganisms to develop and reproduce, but according to Ivshina et al (2013) that strategy to adaptation and tolerance also owned by each organism in unfavorable environment.…”

Section: Resultsmentioning

confidence: 99%

Untitled

2019

Int. J. Curr. Res. Biosci. Plant Biol.

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Concentrations of iron and manganese that exceed critical limits in soil and plant provide opportunities for microorganisms to become resistant. The aim of this study was to identify endomycorrhizal fungi from areas contaminated with iron and manganese for use as biostarter for phytorizoremediation programs. This research was conducted in two phases at April 2019, namely taking rhizosphere from Chromolaena odorata, Melastoma affine dan Spathoglottis plicata in Sorowako, Indonesia; and the second phase is to isolate and identify endomycorrhizal fungal spores in the Microbiology Laboratory, Center for Environmental and Forestry Research and Development in Makassar, Indonesia. The results showed that the genus Acaulospora was more dominant in areas that were contaminated with iron and manganese, and were able to adapt and survive compared to other genera.

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Adaptive mechanisms of nonspecific resistance to heavy metal ions in alkanotrophic actinobacteria

Cited by 23 publications

References 10 publications

An in-depth analysis of actinobacterial communities shows their high diversity in grassland soils along a gradient of mixed heavy metal contamination

An in-depth analysis of actinobacterial communities shows their high diversity in grassland soils along a gradient of mixed heavy metal contamination

Efect of iron salts on Rhodococcus sp. And Grodonia sp. On carotenoid production

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