Trentepohlia umbrina on Scots pine as a bioindicator of alkaline dust pollution

Marmor, Liis; Degtjarenko, Polina

doi:10.1016/j.ecolind.2014.06.008

Cited by 11 publications

(6 citation statements)

References 24 publications

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“…The results of our study do not contradict the application of subaerial phototrophic biofilms in biomonitoring of anthropogenic pollution (Poikolainen et al ; Freystein et al ; Marmor & Degtjarenko ; Nováková & Neustupa ). However, our findings suggest that such surveys should also take into account the microscale variation caused by microstructural heterogeneity of the substrate, as well as spatio‐temporal dynamics of the communities, reflecting the seasonal changes and non‐periodic development related to probably relatively high rates of dispersal and subsequent colonization of the substrate by newly arriving taxa.…”

Section: Discussionsupporting

confidence: 71%

“…A life in this ancient terrestrial niche—interface of solid substrate and the atmosphere—has led to many morphological and functional adaptations (Lüttge & Büdel ; Karsten & Holzinger ; Karsten et al ) of microalgae to desiccation, extreme temperature fluctuations, intense irradiation, and low nutrient availability (Barkman ; Gorbushina & Broughton ; Gustavs et al ). Spatio‐temporal dynamics of subaerial microalgal communities across scales is poorly understood despite their omnipresence, surprising morphological and molecular diversity, significant role in ecosystem functioning, and their bioindicating potential (Poikolainen et al ; Freystein et al ; Marmor & Degtjarenko ).…”

Section: Introductionmentioning

confidence: 99%

“…On larger spatial scales (such as among regions), the geographic distance, correlated with the differences in temperature and humidity, seems to be the most important factor for the distribution of major microalgal taxa (Rindi & Guiry ; Neustupa & Štifterová ). On an intermediate scale (i.e., meters to tens of kilometers within a single region), the physicochemical factors related to different substrata, such as pH, nutrients, or water‐holding capacity, seem to determine the community composition of the microalgal biofilms (Hoffmann ; Lukešová & Hoffmann ; Mataloni & Tell ; Freystein et al ; Neustupa & Štifterová ; Kulichová et al ; Marmor & Degtjarenko ; Nováková & Neustupa ; Štifterová & Neustupa ). Other important factors that correlate with microalgal distribution in subaerial microhabitats include local irradiance, sample orientation, or age of substrata (Hedenås et al ; Neustupa & Škaloud , ; Neustupa & Štifterová ).…”

Section: Introductionmentioning

confidence: 99%

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Small‐scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Štifterová

Neustupa

2017

Phycological Research

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The present study focuses on temporal and microscale spatial variation of the community structure and richness of subaerial microalgae growing on the bark of European beech (Fagus sylvatica) trees in temperate deciduous forests. Subaerial phototrophic biofilms present common and conspicuous microalgal communities growing on a variety of natural and man-made substrata. However, in comparison with other major microalgal communities such as phytoplankton and microphytobenthos, basic patterns of their spatio-temporal variation remain largely unknown. The bark samples were collected six times each spring and autumn in a period of 3 years (2010-2013) and were cultured on agar plates, and then individual clonal strains were identified by light microscopy. A total of 55 morphotypes (considered as operational taxonomic units for subsequent analyses) were recognized, which mainly belong to the classes Trebouxiophyceae and Chlorophyceae. Interestingly, temporal variation explained the largest proportion of variation in the community structure. This variation was primarily related to seasonal fluctuations, and although the communities recorded in spring and autumn showed many overlapping taxa, a clear distinction in species composition and abundance was observed. However, the microhabitat characteristics such as bark roughness also significantly structured the microalgal community. Conversely, spatial factors such as the height of the samples above ground or distance of the samples on a trunk seemed to be of lesser importance on this scale. Thus, we concluded that the previously unrecognized seasonal changes, resulting from variation in temperature, humidity, and irradiance, as well as the non-seasonal temporal changes, possibly resulting from local colonization or extinction of individual taxa, should be considered as one of the important factors in structuring aerial microalgal communities.

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Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Small‐scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Štifterová

Neustupa

2017

Phycological Research

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“…This study clarifies and improves the ecological and morphological characterisation of the species T. umbrina, also highlighting that this species, in its free-living, nonlichenized form, is much more widespread than the available literature suggests. T. umbrina is the most widespread species of the genus (Rindi and López-Bautista 2007), but records of its free-living form refer only to countries of tropical (Rindi et al 2005(Rindi et al , 2006Gaylarde et al 2006) and temperate climates (Rindi and Guiry 2002;Lüttge and Büdel 2010;Marmor and Degtjarenko 2014;Unković et al 2017). There are Mediterranean records for the genus in Portugal (Pereira de Oliveira 2008; Macedo et al 2009) and Spain (Alvarez et al 1994;Ariño and Saiz-Jimenez 1996) but not specifically for the species T. umbrina.…”

Section: Discussionmentioning

confidence: 99%

Ecological and taxonomic characterisation of Trentepohlia umbrina (Kützing) Bornet growing on stone surfaces in Lazio (Italy)

Bartoli

Ellwood

Bruno³

et al. 2019

Ann Microbiol

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Purpose The colonisation of building material by photosynthetic organisms is highly dependent on the environmental conditions and the nature of the substrate. The growths of red-orange phototrophic biofilms have been widely reported in the literature and have commonly been associated with the order Trentepohliales, whose ecological and taxonomical information needs to be improved. Considering the recurrent presence of such biofilms throughout the Lazio region, we would identify the occurring species and define their favourable environmental conditions, through morphological, genetic and ecological analyses. Results Biofilms were collected across an altitude range of 0 to 860 m asl, occurring from the coast to 60-km inland. A dominant presence of the filamentous terrestrial green alga Trentepohlia umbrina (Kützing) Bornet was confirmed in all sites sometimes mixed with cyanobacteria of the genus Gloeocapsa. The distribution of Trentepohliales is generally given as pan-tropical, but some species, such as T. umbrina, are also distributed in temperate climates. Here, it is reported for the first time a Mediterranean occurrence of the species. Low humidity and light conditions, such as those occurring on vertical surfaces with mainly northern aspects, are the preferred environmental conditions. Coastal areas were more favourable for its growth, probably due to the higher nocturnal condensation that occurs here. Concrete and mortars were particularly bioreceptive to T. umbrina, but marble and trachyte were also colonised under favourable conditions. Conclusions The findings better define the ecological range of this species, suggesting a wider biogeographic distribution, and adding information on morphological features and genetic data.

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“…Despite this, numerous taxa of subaerial microalgae have been reported from urban habitats [3]. Species of microalgae growing in urban habitats in large cities are constantly exposed to high levels of air pollution; it has been suggested that some species can be used as biological indicators of air pollution in different areas and weather conditions [11][12][13][14][15][16]. Refs.…”

Section: Introductionmentioning

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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Trentepohlia umbrina on Scots pine as a bioindicator of alkaline dust pollution

Cited by 11 publications

References 24 publications

Small‐scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Small‐scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Ecological and taxonomic characterisation of Trentepohlia umbrina (Kützing) Bornet growing on stone surfaces in Lazio (Italy)

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

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