Soil microbiocenosis as an indicator of stability of meadow communities in the environment polluted with heavy metals

Ившина, И. Б.; Kostina, L. V.; Kamenskikh, T. N.; Zhuikova, V. A.; Жуйкова, Т. В.; Bezel, V. S.

doi:10.1134/s1067413614020039

Cited by 26 publications

(5 citation statements)

References 2 publications

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“…The bacteria involved in the atmospheric nitrogen fixation (ANF-B) have also played an important role in the remediation of Cd polluted soils (Chen et al 2020). Ivishina et al (Ivshina et al 2014) showed that ANF-B can secrete extracellular polymeric substances (EPS) and various organic acids and amino acids that may alter the Cd availability in the soil by adsorbing and trapping metals due to the presence of many anionic functional groups.…”

Section: Functional Analysis Of Isolated Cd-rb Morphotypes Associated With C P and Nmentioning

confidence: 99%

Assessment of native cadmium-resistant bacteria in cacao (Theobroma cacao L.) - cultivated soils

Cordoba-Novoa

Cáceres-Zambrano

Torres‐Rojas

2021

Preprint

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Traces of cadmium (Cd) have been reported in some chocolate products due to soils with Cd and the high ability of cacao plants to extract, transport, and accumulate it in their tissues. An agronomic strategy to minimize the uptake of Cd by plants is the use of cadmium-resistant bacteria (Cd-RB). However, knowledge about Cd-RB associated with cacao soils is scarce. This study was aimed to isolate and characterize Cd-RB associated with cacao-cultivated soils in Colombia that may be used in the bioremediation of Cd-polluted soils. Diversity of culturable Cd-RB, qualitative functional analysis related to nitrogen, phosphorous, carbon, and Cd were performed. Thirty different Cd-RB morphotypes were isolated from soils with medium (NC, Y1, Y2) and high (Y3) Cd concentrations using culture media with 6 mg Kg-1 Cd. Cd-RB were identified based on morphological and molecular analyses. The most abundant morphotypes (90%) were gram-negative belong to Phylum Proteobacteria and almost half of them showed the capacity to fix nitrogen, solubilize phosphates and degrade cellulose. Unique morphotypes were isolated from Y3 soils where Burkholderia and Pseudomonas were the dominant genera indicating their capacity to resist high Cd concentrations. P. putida GB78, P. aeruginosa NB2, and Burkholderia sp. NB10 were the only morphotypes that grew on 18 up to 90 (GB78) and 140 mg Kg-1 Cd (NB2-NB10); however, GB78 showed the highest Cd bioaccumulation (5.92 mg g-1). This study provides novel information about culturable Cd-RB soil diversity with the potential to develop biotechnology-based strategies.

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Section: Functional Analysis Of Isolated Cd-rb Morphotypes Associated With C P and Nmentioning

confidence: 99%

Assessment of native cadmium-resistant bacteria in cacao (Theobroma cacao L.) - cultivated soils

Cordoba-Novoa

Cáceres-Zambrano

Torres‐Rojas

2021

Preprint

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“…The levels of soil pollution in the test areas were described in detail previously (Ivshina et al, 2014). The concentrations of mobile forms of heavy metals in the soil reach 288 μg/g for copper, 23 μg/g for lead, 2 μg/g for cadmium, 343 μg/g for zinc, and 16185 μg/g for iron.…”

Section: Resultsmentioning

confidence: 99%

Specific features of soils and herbaceous plant communities in industrially polluted areas of the Middle Urals

et al. 2015

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Anthropogenic transformation of soils and specific features of herbaceous plant communities have been studied in areas polluted with heavy metals. With regard to landscape and edaphic conditions, all test areas have been divided into two groups: agrozems and technozems. Phytocenoses in test areas of the background and buffer zones belong to the glycophytic variant of meadow vegetation type and to the pre meadow stage of progressive succession, respectively. Chemical pollution leads to a decrease in coefficients of similarity between communities and an increase in taxonomic diversity due to reduction in species satura tion of genera and families, with a rise in the proportion of monotypic taxa. The influence of chemical pol lution on the species saturation of plant communities is stronger than that of community type and coverage of species.

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“…6 Engineering and biological reclamation: scheme of woody species plantation at the dump benches (smoke trees, 25%, and cades, 75%) and slope stabilization measures (Bothriochloa ischaemum), and tussocks (Brachypodium spp.). The grasses are resistant to drought and lack of nutrients and impede the process of soil degradation by extensive fibrous root systems, becoming a cradle of a stable vegetation cover (Hao et al, 2004;Ivshina et al, 2014;Shu et al, 2002).…”

Section: Biological Reclamationmentioning

confidence: 99%

Assessment and abatement of the eco-risk caused by mine spoils in the dry subtropical climate

Alekseenko

Drebenstedt

Bech

2021

Environ Geochem Health

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The highly rugged mountainous land topography of the Novorossiysk industrial agglomeration (NW Caucasus, Krasnodar Krai, Russia) and arid climate limit the restoration abilities of disturbed mine lands. Abandoned waste-rock dumps of a marl quarry occupy an area of ca. 150,000 m2 next to the cement plant, residential districts, and a commercial seaport. To assess the eco-risk, topsoil horizons of urban and mine-site Technosols and background Rendzinas were sampled and analyzed; measurements of particulate matter fractions PM1, PM2.5, PM4, and PM10 were conducted throughout the agglomeration. Fugitive dust emission from the unreclaimed marl dumps raises the PM2.5 content in the air by a factor of 2.68 on average. The high sorption capacity of the fine eluvium results in the accumulation of urban emissions by the dust and contributes to the subsequent soil pollution; the Cumulative Pollution Index of pedochemical anomalies reaches the high-risk level over the areas of up to 5 km2. Environmental threats caused by the mine dumps can be assessed more reliably by means of land zoning based on accumulated environmental damage indicators and the debris flow and waterspout risk calculation. To abate the technogenic impact caused by the mine spoils, reclamation actions must be taken including soil stabilization on sensitive sites by application of geosynthetic cover, hydroseeding of the mixture of soil improvers and seeds of herbaceous plants on the slopes, and anti-erosion plantation of cades (Juniperus oxycedrus L.) and smoke trees (Cotinus coggygria Scop.) at subhorizontal surfaces.

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Soil microbiocenosis as an indicator of stability of meadow communities in the environment polluted with heavy metals

Cited by 26 publications

References 2 publications

Assessment of native cadmium-resistant bacteria in cacao (Theobroma cacao L.) - cultivated soils

Assessment of native cadmium-resistant bacteria in cacao (Theobroma cacao L.) - cultivated soils

Specific features of soils and herbaceous plant communities in industrially polluted areas of the Middle Urals

Assessment and abatement of the eco-risk caused by mine spoils in the dry subtropical climate

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