ArticleExtremophiles : life under extreme conditions2009
Vertical partitioning and expression of primary metabolic genes in a thermophilic microbial mat.
Article in Extremophiles : life under extreme conditions, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Distribution of Hydrogen-Producing Bacteria in Tibetan Hot Springs, China.Frontiers in microbiology · 2021Article
- Bacterial and archeal community composition in hot springs from Indo-Burma region, North-east India.AMB Express · 2016Article
- Filamentous anoxygenic phototrophic bacteria from cyanobacterial mats of Alla hot springs (Barguzin Valley, Russia).Extremophiles : life under extreme conditions · 2015Article
- Archaeal and bacterial diversity in two hot spring microbial mats from a geothermal region in Romania.Extremophiles : life under extreme conditions · 2013Article
- Bacterial and archaeal diversity in two hot spring microbial mats from the geothermal region of Tengchong, China.Extremophiles : life under extreme conditions · 2012Article
- Hypolithic microbial community of quartz pavement in the high-altitude tundra of central Tibet.Microbial ecology · 2010Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
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Abstract
A thermophilic microbial mat with a relatively simple morphological composition was used to study the expression of key metabolic genes between mat layers. Mats comprised Roseiflexus castenholzii, Synechococcus sp., a Sphingomonas-like proteobacterial taxon and an unidentified member of the Thermotogae as determined by 16S rRNA phylotypes. The diversity of expressed loci for key genes involved in oxygenic photosynthesis (cbbL), anoxygenic photosynthesis (pufM) and nitrogen fixation (nifH) was assessed. The cyanobacterial surface layer supported two cbbL transcripts, with closest phylogenetic affinity to those from the cyanobacterium Synechococcus sp. and a proteobacterium Nitrobacter sp. This indicates that both photoautotrophic and chemolithoautotrophic carbon dioxide fixation may occur in this mat layer. Lower layers did not support cbbL transcripts. Anoxygenic photosynthesis was indicated by a single pufM transcript with closest affinity to that of R. castenholzii. Expression occurred in all layers beneath the cyanobacterial surface layer. Expression of a single nifH transcript with closest affinity to a proteobacterial nitrogenase occurred in samples throughout all mat layers.
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