Role of Climate and Edaphic Factors on the Community Composition of Biocrusts Along an Elevation Gradient in the High Arctic DOI Creative Commons
Ignacio Martı́nez, Ekaterina Pushkareva,

Leonie Agnes Keilholz

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2606 - 2606

Published: Dec. 17, 2024

Biological soil crusts are integral to Arctic ecosystems, playing a crucial role in primary production, nitrogen fixation and nutrient cycling, as well maintaining stability. However, the composition complex relationships between diverse organisms within these biocrusts not studied. This study investigates how microbial community is influenced by environmental factors along an altitudinal gradient (101 m 314 m). Metagenomic analyses were used provide insights into composition, revealing that temperature, pH, availability significantly shaped community. In contrast, altitude did directly influence significantly. Eukaryotic communities dominated Chloroplastida fungi, while Proteobacteria Actinobacteria prevailed among prokaryotes. Cyanobacteria, particularly orders such Pseudoanabaenales, Pleurocapsales, Nostocales, emerged most abundant photoautotrophic organisms. Our findings highlight impact of gradients on diversity functional dynamics biocrusts, emphasizing their critical tundra ecosystems. intricate micro-ecosystems, whose structure strongly local physicochemical parameters, likely affecting essential ecological functions.

Language: Английский

Arctic Biocrusts Highlight Genetic Variability in Photosynthesis as a Key Driver of Biodiversity DOI
Ekaterina Pushkareva,

Leonie Agnes Keilholz,

Sandra Kammann

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Role of Climate and Edaphic Factors on the Community Composition of Biocrusts Along an Elevation Gradient in the High Arctic DOI Creative Commons
Ignacio Martı́nez, Ekaterina Pushkareva,

Leonie Agnes Keilholz

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2606 - 2606

Published: Dec. 17, 2024

Biological soil crusts are integral to Arctic ecosystems, playing a crucial role in primary production, nitrogen fixation and nutrient cycling, as well maintaining stability. However, the composition complex relationships between diverse organisms within these biocrusts not studied. This study investigates how microbial community is influenced by environmental factors along an altitudinal gradient (101 m 314 m). Metagenomic analyses were used provide insights into composition, revealing that temperature, pH, availability significantly shaped community. In contrast, altitude did directly influence significantly. Eukaryotic communities dominated Chloroplastida fungi, while Proteobacteria Actinobacteria prevailed among prokaryotes. Cyanobacteria, particularly orders such Pseudoanabaenales, Pleurocapsales, Nostocales, emerged most abundant photoautotrophic organisms. Our findings highlight impact of gradients on diversity functional dynamics biocrusts, emphasizing their critical tundra ecosystems. intricate micro-ecosystems, whose structure strongly local physicochemical parameters, likely affecting essential ecological functions.

Language: Английский

Citations

1