ArticleExtremophiles : life under extreme conditions2006
Bacterial community along a historic lake sediment core of Ardley Island, west Antarctica.
Article in Extremophiles : life under extreme conditions, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 53 citations in OpenAlex.
- Bacteria isolates from Lake sediments as a promising proxy for temporally tracking organic pollution: A global review.One health (Amsterdam, Netherlands) · 2025Article
- Bacterial community composition and function in different habitats in Antarctic Fildes region revealed by high-throughput sequencing.Frontiers in microbiology · 2025Article
- Recent advances in the bioprospection and applications of chitinolytic bacteria for valorization of waste chitin.Archives of microbiology · 2021Review
- Isolation and characterization of fast-growing green snow bacteria from coastal East Antarctica.MicrobiologyOpen · 2021Article
- Vertical variation of bulk and metabolically active prokaryotic community in sediment of a hypereutrophic freshwater lake.Environmental science and pollution research international · 2019Article
- Shifts among Eukaryota, Bacteria, and Archaea define the vertical organization of a lake sediment.Microbiome · 2017Article
- Land-use types and soil chemical properties influence soil microbial communities in the semiarid Loess Plateau region in China.Scientific reports · 2017Article
- Bacterial diversity is strongly associated with historical penguin activity in an Antarctic lake sediment profile.Scientific reports · 2015Article
- Linking temporal changes in bacterial community structures with the detection and phylogenetic analysis of neutral metalloprotease genes in the sediments of a hypereutrophic lake.Microbes and environments · 2014Article
- Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India).Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2014Article
- Isolation and phylogenetic classification of culturable psychrophilic prokaryotes from the Collins glacier in the Antarctica.Folia microbiologica · 2011Article
- Bacterial biodiversity from Roopkund Glacier, Himalayan mountain ranges, India.Extremophiles : life under extreme conditions · 2010Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The bacterial community in a historic lake sediment core of Ardley Island, Antarctica, spanning approximately 1,600 years, was investigated by molecular approaches targeting the 16S rRNA gene fragments. The cell number in each 1 cm layer of the sediment core was deduced through semi-quantification of the 16S rRNA gene copies by quantitative competitive PCR (QC-PCR). It was found that the total bacterial numbers remained relatively stable along the entire 59 cm sediment core. Denaturing Gradient Gel Electrophoresis (DGGE) analysis and sequencing of PCR-amplified 16S rRNA gene fragments were performed to analyze the bacterial diversity over the entire column. Principle coordinates analysis suggested that the bacterial communities along the sediment core could be separated into three groups. There were obvious bacterial community shift among groups of 1-20 cm, 21-46 cm and 46-59 cm. Diversity indices indicated that the bacterial community in the 21-46 cm depth showed the highest species diversity and uniformity. The main bacterial groups in the sediments fell into 4 major lineages of the gram-negative bacteria: the alpha, gamma and delta subdivision of Proteobacteria, the Cytophaga-Flavobacteria-Bacteroides, and some unknown sequences. The gram-positive bacteria Gemmatimonadetes, Firmicutes and Actinobacteria were also detected. The results demonstrated the presence of highly diverse bacterial community population in the Antarctic lake sediment core. And the possible influence of climate and penguin population change on the bacterial community shift along the sediment core was discussed.
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