ArticleThe ISME journal2015
The cyanobacterium Mastigocladus fulfills the nitrogen demand of a terrestrial hot spring microbial mat.
Article in The ISME journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
23 citing papers in PubMed, 44 citations in OpenAlex.
- Response of nitrogen-fixing plant symbioses to changing temperature.Journal of integrative plant biology · 2026Review
- Unraveling microbial life from a high-altitude hydrothermal system in the Andes plateau and their potential for nitrogen transformations.Engineering microbiology · 2025Article
- Elucidating the role of compatible solutes in growth protection and amelioration of oxidative stress in the thermophilic cyanobacterium Mastigocladus sp. TA-8 during temperature shifts.Extremophiles : life under extreme conditions · 2025Article
- Spatial scale modulates stochastic and deterministic influence on biogeography of photosynthetic biofilms in Southeast Asian hot springs.Environmental microbiome · 2025Article
- Effects of hydrogeochemistry on the microbial ecology of terrestrial hot springs.Microbiology spectrum · 2023Article
- Distribution and Activity of Sulfur-Metabolizing Bacteria along the Temperature Gradient in Phototrophic Mats of the Chilean Hot Spring Porcelana.Microorganisms · 2023Article
- Community structure of thermophilic photosynthetic microbial mats and flocs at Sembawang Hot Spring, Singapore.Frontiers in microbiology · 2023Article
- Compensatory Transcriptional Response ofMolecules (Basel, Switzerland) · 2022Article
- Genome Analysis Coupled With Transcriptomics Reveals the Reduced Fitness of a Hot Spring CyanobacteriumFrontiers in microbiology · 2022Article
- Article
- Unveiling Ecological and Genetic Novelty within Lytic and Lysogenic Viral Communities of Hot Spring Phototrophic Microbial Mats.Microbiology spectrum · 2021Article
- Microbial community overlap between the phyllosphere and rhizosphere of three plants from Yongxing Island, South China Sea.MicrobiologyOpen · 2020Article
- Taxonomic Novelty and Distinctive Genomic Features of Hot Spring Cyanobacteria.Frontiers in genetics · 2020Article
- Fischerella thermalis: a model organism to study thermophilic diazotrophy, photosynthesis and multicellularity in cyanobacteria.Extremophiles : life under extreme conditions · 2019Review
- High diversity of thermophilic cyanobacteria in Rupite hot spring identified by microscopy, cultivation, single-cell PCR and amplicon sequencing.Extremophiles : life under extreme conditions · 2019Article
- Nitrogenase Activity in Thermophilic Chemolithoautotrophic Bacteria in the Phylum Aquificae Isolated under Nitrogen-Fixing Conditions from Nakabusa Hot Springs.Microbes and environments · 2018Article
- Phylogenetic Diversity of Nitrogenase Reductase Genes and Possible Nitrogen-Fixing Bacteria in Thermophilic Chemosynthetic Microbial Communities in Nakabusa Hot Springs.Microbes and environments · 2018Article
- Nitrogen Fixation in Thermophilic Chemosynthetic Microbial Communities Depending on Hydrogen, Sulfate, and Carbon Dioxide.Microbes and environments · 2018Article
- Living at the Frontiers of Life: Extremophiles in Chile and Their Potential for Bioremediation.Frontiers in microbiology · 2018Review
- Diurnal Changes in Active Carbon and Nitrogen Pathways Along the Temperature Gradient in Porcelana Hot Spring Microbial Mat.Frontiers in microbiology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cyanobacteria from Subsection V (Stigonematales) are important components of microbial mats in non-acidic terrestrial hot springs. Despite their diazotrophic nature (N2 fixers), their impact on the nitrogen cycle in such extreme ecosystems remains unknown. Here, we surveyed the identity and activity of diazotrophic cyanobacteria in the neutral hot spring of Porcelana (Northern Patagonia, Chile) during 2009 and 2011-2013. We used 16S rRNA and the nifH gene to analyze the distribution and diversity of diazotrophic cyanobacteria. Our results demonstrate the dominance of the heterocystous genus Mastigocladus (Stigonematales) along the entire temperature gradient of the hot spring (69-38 °C). In situ nitrogenase activity (acetylene reduction), nitrogen fixation rates (cellular uptake of (15)N2) and nifH transcription levels in the microbial mats showed that nitrogen fixation and nifH mRNA expression were light-dependent. Nitrogen fixation activities were detected at temperatures ranging from 58 °C to 46 °C, with maximum daily rates of 600 nmol C2H4 cm(-2) per day and 94.1 nmol N cm(-2) per day. These activity patterns strongly suggest a heterocystous cyanobacterial origin and reveal a correlation between nitrogenase activity and nifH gene expression during diurnal cycles in thermal microbial mats. N and C fixation in the mats contributed ~3 g N m(-2) per year and 27 g C m(-2) per year, suggesting that these vital demands are fully met by the diazotrophic and photoautotrophic capacities of the cyanobacteria in the Porcelana hot spring.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.