Ecological Atlas of Baikal Region

Batuev, A. R.; Batuev, D. A.; Bogdanov, V. N.; Dashpilov, Ts B.; Korytny, I. M.

doi:10.31554/978-5-7925-0621-3-2022-22-26

Cited by 2 publications

(2 citation statements)

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“…Lake Baikal is a unique natural object. It is the world's largest reservoir of clean water, which by its area (600x40 km 2 ) can be classified as a small inland sea 1 . This explains the attention to the study of the atmosphere of the Baikal basin from the standpoint of global environmental and climate change [2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Lidar observations of the tropospheric aerosol structures on the Baikal Lake coast

Kokhanenko,

Balin,

Klemasheva

et al. 2023

XVI International Conference on Pulsed Lasers and Laser Applications

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Section: Introductionmentioning

confidence: 99%

Lidar observations of the tropospheric aerosol structures on the Baikal Lake coast

Kokhanenko,

Balin,

Klemasheva

et al. 2023

XVI International Conference on Pulsed Lasers and Laser Applications

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“…In this context, the soils of the dry steppe zone of the Se lenga Highlands are interesting to study because they are formed in pronounced continental and arid climates (Nogina, 1964;Batuev et al, 2000). This area is characterized by high levels of solar radiation, low and irregular precipitation, and sharp average daily and monthly fluctuations in air tempera ture (Chimitdorzhieva G.D., Chimitdorzhieva E.O., 2021).…”

Section: Introductionmentioning

confidence: 99%

Taxonomic and ecophysiological characteristics of actinobacteria in soils of the dry steppe zone of the Selenga Highlands (Western Transbaikalia)

et al. 2023

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Arid habitats have recently attracted increasing attention in terms of biodiversity research and the disco very of new bacterial species. These habitats are among the target ecosystems suitable for isolating new strains of actinobacteria that are likely to produce new metabolites. This paper presents the results on the isolation of actinobacteria from soils of the dry steppe zone of the Selenga Highlands, the characterization of their taxonomic diversity, as well as ecological and trophic properties. The bacterial counts on ISP 4 medium ranged from 6.6 × 105 to 7.1 × 106 CFU/g. The highest bacterial counts were observed in the subsurface and middle horizons of the studied soils. 28 strains of Gram-positive bacteria represented by thin-branched mycelium, coccoid and bacilliform forms were isolated. According to the results of 16S rRNA gene analysis, the isolated strains were representatives of Streptomyces, Arthrobacter, Glycomyces, Kocuria, Microbacterium, Micromonospora, Nocardioides, Pseudarthrobacter, and Rhodococcus (Actinomycetota). One isolate that showed low 16S rRNA gene sequence similarity with previously isolated and validly described species was a new species of the genus Glycomyces. It was shown that all tested strains are mesophilic, prefer neutral or slightly alkaline conditions, have growth limits in the temperature range of 5–45 °C and pH 6–9. The optimal NaCl concentration for growth of most strains was 0–1 %. The strains under study were capable of utilizing a wide range of mono- and disaccharides and polyatomic alcohols as a carbon source. The isolated strains were capable of using both organic (proteins and amino acids) and inorganic (ammonium salts and nitrates) compounds as nitrogen sources. The examinations of extracellular enzymes showed that all isolates were capable of producing catalase and amylase; 78.6 % of the total number of isolates produced protease and lipase; 53.6 %, cellulase; and 28.6 %, urease. The data obtained expand current knowledge about the diversity of microbial communities in soils of the Selenga Highlands and also confirm the potential of searching for new actinobacteria species in these soils.

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Ecological Atlas of Baikal Region

Cited by 2 publications

References 0 publications

Lidar observations of the tropospheric aerosol structures on the Baikal Lake coast

Lidar observations of the tropospheric aerosol structures on the Baikal Lake coast

Taxonomic and ecophysiological characteristics of actinobacteria in soils of the dry steppe zone of the Selenga Highlands (Western Transbaikalia)

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