Distribution of algae and cyanobacteria of biological soil crusts along the elevation gradient in mountain plant communities at the Northern Urals (Russian European Northeast)

Novakovskaya, I. V.; Патова, Е. Н.; Dubrovskiy, Yuriy A.; Novakovskiy, Alexander; Kulyugina, E. E.

doi:10.1007/s11629-021-6952-7

Cited by 15 publications

(15 citation statements)

References 44 publications

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“…Cyanobacteria do not have the ability to mobilize water from deep soil layers and can only rely on the amount or frequency of precipitation to perform ecological functions such as N fixation [57], which might be related to the moderate SM content (Table 1) in the leguminous and nonleguminous shrub combination in this study. A previous study confirmed that Cyanobacteria in the bare substrate biocrusts of mountain vegetation types in the northern Urals were specific to different plant communities [52], which suggests that our future research needs to pay more attention to the effects of different sand-fixing plant communities on Cyanobacteria. Another possibility is that the sand-fixing combination of two leguminous shrubs inputs functional litter to the soil [71], leading to a significantly higher leaf C, N, P, and K content and a higher N:P ratio than those of nonleguminous plants [25], which further leads to a higher soil bacterial diversity and increases the abundance of bacterial phyla, such as Actinobacteria, Proteobacteria, Chloroflexi, Acidobacteria, and Bacteroidetes, in the soil instead of Cyanobacteria.…”

Section: The Restoration Of Sandy Land With Leguminous Shrubs Could E...supporting

confidence: 66%

High-Throughput Absolute Quantification Sequencing Reveals that a Combination of Leguminous Shrubs Is Effective in Driving Soil Bacterial Diversity During the Process of Desertification Reversal

et al. 2022

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Desertification leads to the extreme fragility of ecosystems and seriously threatens ecosystem functioning in desert areas. The planting of xerophytes, especially leguminous shrubs, is an effective and common means to reverse desertification. Soil microorganisms play a crucial role in nutrient cycling and energy flow in ecosystems. However, the effects of introducing leguminous shrubs on soil microbial diversity and the relevant mechanisms are not clear. Here, we employed the high-throughput absolute quantification 16S rRNA sequencing method to analyze the diversity of soil bacteria in sand-fixing areas of mixed shrublands with three combinations of shrubs, i.e., C. korshinskii × Corethrodendron scoparium (CaKCoS), C. korshinskii × Calligonum mongolicum (CaKCaM), and C. scoparium × C. mongolicum (CoSCaM), in the south of the Mu Us Sandy Land, China. This area suffered from moving dunes 20 years ago, but after introducing these shrubs to fix the dunes, the ecosystem was restored. Additionally, the effects of soil physicochemical properties on soil bacterial composition and diversity were analyzed with redundancy analysis (RDA) and structural equation modeling (SEM). It was found that the Shannon index of soil bacteria in CaKCoS was significantly higher than that in CaKCaM and CoSCaM, and the abundance of the dominant phyla, including Actinobacteria, Proteobacteria, Acidobacteria, Chloroflexi, Planctomycetes, Thaumarchaeota, Armatimonadetes, candidate_division_WPS-1, and Nitrospirae, increased significantly in CaKCoS and CaKCaM compared to that in CoSCaM. RDA showed that the majority of soil properties, such as total nitrogen (TN), available potassium (AK), N:P ratio, soil moisture (SM), and available phosphorus (AP), were important soil environmental factors affecting the abundance of the dominant phyla, and RDA1 and RDA2 accounted for 56.66% and 2.35% of the total variation, respectively. SEM showed that the soil bacterial α-diversity was positively affected by the soil organic carbon (SOC), N:P ratio, and total phosphorus (TP). Moreover, CaKCoS had higher SM, total carbon (TC), total potassium (TK), and AP than CaKCaM and CoSCaM. Collectively, these results highlight a conceptual framework in which the combination of leguminous shrubs can effectively drive soil bacterial diversity by improving soil physicochemical properties and maintaining ecosystem functioning during desertification reversal. Graphical Abstract

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Section: The Restoration Of Sandy Land With Leguminous Shrubs Could E...supporting

confidence: 66%

High-Throughput Absolute Quantification Sequencing Reveals that a Combination of Leguminous Shrubs Is Effective in Driving Soil Bacterial Diversity During the Process of Desertification Reversal

et al. 2022

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“…In our case, high mountain riverine communities have similarity in the presence of heterotrophs with the polluted Lake Sorbulak. Distribution of microalgae communities over altitude gradient in climatic stress conditions that were studied in the Ural Mountain reveal similar patterns of the species richness of microalgae decreasing along the altitude gradient [82] from mountain meadow to mountain tundra. The Ural Mountain's distribution demonstrated the positive correlation between the species richness of microalgae and altitude in the forest communities, but a negative correlation in the tundra, which shows the influence of the microclimatic condition on the algae community, such in other stressed habitats [77,80,81].…”

Section: Discussionmentioning

confidence: 67%

Microalgae Indicators of Charophyte Habitats of South and Southeast Kazakhstan

Sametova

Nurashov²,

Barınova³

et al. 2022

Diversity

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Charophyte algae is a very sensitive group of organisms occupying Kazakhstan waterbodies. They are distributed throughout the country; however, not enough studies have been conducted, especially in the southern region. Research carried out in 2019–2022 identified 33 habitats of charophyte algae in the south and southeastern regions of Kazakhstan, including 15 new to Kazakhstan. Bioindicators and the statistical analysis of 223 species of nine phyla of microalgae associated with charophytes revealed that the main factors influencing the distribution of algal diversity may be habitat altitude and hydrology. The habitat altitude of about 700 m above sea level was shown to be the boundary between the different diversity distributions. The application of bioindicator methods can expand our knowledge on the ecology of the charophyte species in Kazakhstan. The study of algal diversity in charophyte habitats can serve as a tool for tracking climate change under potential future climate warming.

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“…In temperate arid steppe and dryland ecosystems, cyanobacterial crusts mainly consist of Nostocales, Oscillatoriales, Synechoccocales, and the dominant species beside M. vaginatus , including Symplocastrum purpurascens , Scytonema sp., Nostoc commune , Phormidium sp., with the biomass of cyanobacteria increasing with light intensity ( Büdel et al, 2009 ; Williams et al, 2016 ; Büdel et al, 2018 ; Temraleeva, 2018 ; Roncero-Ramos et al, 2019 ). In the mountains of northeastern Europe, cyanobacteria mainly consist of Phormidium , Leptolyngbya , and Nostoc , with Leptolyngbya voronichiniana , Leptolyngbya foveolarum , Trichocoleus hospitus dominating ( Gaysina et al, 2018 ; Novakovskaya et al, 2022 ). The main cyanobacteria in Brazil’s tropical savanna include Microcoleus , Nostoc , Leptolyngbya , Porphyrosiphon , and Pycnacronema ( Machado de Lima et al, 2019 , 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Cyanobacterial diversity of biological soil crusts and soil properties in karst desertification area

Chen

Yan²,

Xiong³

et al. 2023

Front. Microbiol.

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As important components of the biological soil crusts (BSCs) and of the primary stage of crust succession, cyanobacterial communities occupy an important ecological niche and play an important ecological role in desertification areas. In this study, we focused on the karst desertification area, which also belongs to the same category of desertification, and selected three study areas, Guanling-Zhenfeng Huajiang (HJ), Bijie Salaxi (SLX), and Shibing (SB), in the Guizhou Plateau, which represents the overall ecological environment of South China karst, to conduct surveys on the diversity of BSC species and soil properties. Analysis of the cyanobacterial communities and physicochemical properties using the Shannon-Wiener diversity index, principal component analysis, and redundancy analysis revealed that: (1) The three study areas had common cyanobacterial species, with a total of 200 species distributed across 22 genera, 2 classes, 5 orders, and 6 families belonging to the Oscillatoriales (39%), Scytonematales (24.5%), Chroococcales (23%), Nostocales (11.5%), and Rivulariales (2%), (2) The number of species increased with the intensity of karst desertification—while Oscillatoriaceae was the dominant family in HJ and moderate–severe desertification areas, Chroococcaceae and Scytonemataceae were dominant in the mild and potential desertification areas SLX and SB, (3) The Shannon-Wiener diversity indices followed the trend: SLX (3.56) > SB (3.08) > HJ (3.01), indicating that the species were more evenly distributed in mild desertification, (4) In the carbonate background, shrubland harbored the largest number of cyanobacterial species compared to grassland, bare land, and arbor woodland; however, the highest number was documented in arbor woodland in dolomite karst, (5) The soil is weathered limestone or yellow soil in all three areas, with pH ranging from 5.73 to 6.85, fine sand dominated, and soil nutrients increased with the intensity of desertification, and (6) Redundancy analysis showed that organic carbon, soil moisture content (0–5 cm), and total nitrogen substantially influenced cyanobacterial diversity. These results reveal that differences in soil nutrient content play an important role in regulating the cyanobacterial diversity and composition, thereby establishing a foundation for further research and application of soil ecological restoration of cyanobacteria in BSCs of karst desertification areas.

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Distribution of algae and cyanobacteria of biological soil crusts along the elevation gradient in mountain plant communities at the Northern Urals (Russian European Northeast)

Cited by 15 publications

References 44 publications

High-Throughput Absolute Quantification Sequencing Reveals that a Combination of Leguminous Shrubs Is Effective in Driving Soil Bacterial Diversity During the Process of Desertification Reversal

High-Throughput Absolute Quantification Sequencing Reveals that a Combination of Leguminous Shrubs Is Effective in Driving Soil Bacterial Diversity During the Process of Desertification Reversal

Microalgae Indicators of Charophyte Habitats of South and Southeast Kazakhstan

Cyanobacterial diversity of biological soil crusts and soil properties in karst desertification area

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