Biodiversity of Terrestrial Cyanobacteria of the South Ural Region

Gaysina, Lira A.; Bohunická, Markéta; Hazuková, Václava; Johansen, Jeffrey R.

doi:10.7872/crya/v39.iss2.2018.167

Cited by 11 publications

(6 citation statements)

References 23 publications

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“…It was identified from a sample from the bottom of a lake in the Austrian Alps [31]. This species was also found in the southern Urals in the Republic of Bashkortostan [32] in a terrestrial habitat (Figure 4). In the Polar Urals, Chlorogloea purpurea grows on a biocrust assemblage on fine earth.…”

Section: Resultsmentioning

confidence: 99%

Cyanobacterial Diversity of the Northern Polar Ural Mountains

Davydov

2021

Diversity

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This study provides new results from an inventory of cyanobacterial species from the Northern Polar Ural Mountains. The article also compiles all existing published data on the cyanobacterial diversity of the region. This ecoregion is located in a unique geographical position in the transition between the sub-Arctic and low Arctic zones and heterogeneous natural conditions. Likely, the unexplored biodiversity of this area’s terrestrial cyanobacteria is high. In total, 52 localities were studied, with 232 samples collected. Cyanobacterial samples were studied under a light microscope. Species were identified based on morphological characteristics only. A total of 93 species of cyanobacteria were identified in different habitats; 70 species were found on wet rocks, 35 on the shores of water bodies, 27 in slow streams, and 21 on waterfalls. In total, 37 species are reported as part of the Ural flora for the first time, while three species (Chroococcus ercegovicii, Gloeocapsopsis cyanea, Gloeothece tepidariorum) were detected in Russian territory for the first time. The composition of the cyanobacterial flora of the Polar Urals was compared with the flora of the nearby Arctic and sub-Arctic regions. According to the Sorensen similarity index, the Polar Urals’ flora is more like the flora of Nenets Autonomous Okrug.

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Section: Resultsmentioning

confidence: 99%

Cyanobacterial Diversity of the Northern Polar Ural Mountains

Davydov

2021

Diversity

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“…Many read sequences recovered from our samples were assigned to Klebsormidium flaccidum, which was one of the most common taxa recorded in this study. The cosmopolitan genus Klebsormidium includes 24 species distributed in a wide range of freshwater and terrestrial habitats [37,[67][68][69]. Species of Klebsorbidium are fast-evolving organisms that may rapidly develop physiological adaptations, enabling them to colonize new habitats, including some with extreme conditions [70,71].…”

Section: Discussionmentioning

confidence: 99%

Diversity of Epiphytic Subaerial Algal Communities in Bangkok, Thailand, and Their Potential Bioindicator with Air Pollution

Saraphol,

Rindi,

Sanevas

2024

Diversity

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Epiphytic subaerial algae represent an assemblage of micro-organisms widely distributed in terrestrial environments, including urban environments. Urban habitats present many challenges for the survival of photosynthetic micro-organisms, yet many species of subaerial microalgae have been reported from these environments, demonstrating a high tolerance to the harsh conditions of urban environments. In this study, the epiphytic subaerial communities of five parks in the urban area of Bangkok were studied using a metabarcoding approach (sequencing of the 23S rDNA marker), with the goal of unraveling their diversity and assessing potential bioindicators with levels of air pollution. Diversity indexes were determined for the algal taxa detected, which were separated into groups corresponding to different collection sites by cluster analysis. Relationships between taxa and air pollutants were analyzed by PCA and the Pearson correlation coefficient (r). The results showed a high diversity of epiphytic subaerial algae. We recorded 101 taxa belonging to the Cyanophyta (70 taxa), Chlorophyta (21 taxa), Charophyta (5 taxa), Bacillariophyta (3 taxa), and Eustigmatophyta (2 taxa). The most abundant taxon was Chroococcidiopsis sp. 1, for which up to 13,254 sequences/cm2 were recorded. The Shannon–Weaver index ranged between 1.37 and 2.51, the Margalef index between 3.84 and 4.75, and the Pielou index between 0.30 and 0.54. The similarity index was between 8.00% and 64.82%, according to the cluster analysis results for the three groups. The PCA indicated that all air pollutants affected the diversity and abundance of epiphytic subaerial algae. Cyanothece sp. 2 was negatively related to O3 and positively related to NO2 and CO and is suggested as a potential bioindicator of air pollution.

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“…Klebsormidium flaccidum was one of the most subaerial algae recorded in this study. It is generally reported as one of the most widespread subaerial algae in the world, with cosmopolitan distribution according to morphology-based identifications [59][60][61]. The taxonomic circumscription of this species has been reassessed in recent years based on molecular data.…”

Section: Discussionmentioning

confidence: 99%

Epiphytic Subaerial Algae as Biological Indicators of Air Pollutants in Bangkok, Thailand

Saraphol,

Rindi,

Sanevas

2023

Preprint

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In Bangkok, the capital city of Thailand, air pollution is a significant problem, and efforts are needed to define organisms that may be used as bioindicators of air pollution. Epiphytic subaerial algae, which grow on the surface of trees, may have a potential as bioindicators of urban air quality. Algae were collected from randomly selected tree trunks in five parks in Bangkok, and the air pollutants CO, NO2, O3, SO2, PM2.5, and PM10 were measured. Analysis of the subaerial algal communities was performed by metagenomics. Diversity indexes were determined for the algal taxa detected, which were separated into groups corresponding to different collection sites by cluster analysis. Relationships between taxa and air pollutants were analyzed by PCA and the Pearson correlation coefficient (r). The results showed a high diversity of epiphytic subaerial al-gae. We recorded 101 taxa belonging to the Cyanophyta (70 taxa), Chlorophyta (21 taxa), Char-ophyta (5 taxa), Bacillariophyta (3 taxa), and Eustigmatophyta (2 taxa). The most abundant taxon was Chroococcidiopsis sp. 1, for which up to 13,254 individuals/cm2 were recorded. The Shan-non–Weaver index ranged between 1.37 and 2.51, the Margalef index between 3.84 and 4.75, and the Pielou index between 0.30 and 0.54. The similarity index was between 8.00% and 64.82% ac-cording to the cluster analysis results for three groups. The PCA indicated that all air pollutants affected the diversity and abundance of the epiphytic subaerial algae. Cyanothece sp. 2 is consid-ered a potential bioindicator of air pollution. It was negatively related to O3 and positively related to NO2 and CO

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Biodiversity of Terrestrial Cyanobacteria of the South Ural Region

Cited by 11 publications

References 23 publications

Cyanobacterial Diversity of the Northern Polar Ural Mountains

Cyanobacterial Diversity of the Northern Polar Ural Mountains

Diversity of Epiphytic Subaerial Algal Communities in Bangkok, Thailand, and Their Potential Bioindicator with Air Pollution

Epiphytic Subaerial Algae as Biological Indicators of Air Pollutants in Bangkok, Thailand

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