ArticleScientific reports2017
The effect of oxygen concentration and temperature on nitrogenase activity in the heterocystous cyanobacterium Fischerella sp.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 39 citations in OpenAlex.
- Response of nitrogen-fixing plant symbioses to changing temperature.Journal of integrative plant biology · 2026Review
- Particle-associated NScience advances · 2025Article
- Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities.FEMS microbiology ecology · 2023Article
- Compensatory Transcriptional Response ofMolecules (Basel, Switzerland) · 2022Article
- Restoration, conservation and phytoplankton hysteresis.Conservation physiology · 2021Article
- Article
- Heterocyst Development and Diazotrophic Growth ofLife (Basel, Switzerland) · 2020Article
- Fischerella thermalis: a model organism to study thermophilic diazotrophy, photosynthesis and multicellularity in cyanobacteria.Extremophiles : life under extreme conditions · 2019Review
- Article
- Nitrogen Fixation Genes and Nitrogenase Activity of the Non-Heterocystous Cyanobacterium Thermoleptolyngbya sp. O-77.Microbes and environments · 2017Article
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Heterocysts are differentiated cells formed by some filamentous, diazotrophic (dinitrogen-fixing) cyanobacteria. The heterocyst is the site of dinitrogen fixation providing the oxygen-sensitive nitrogenase with a low-oxygen environment. The diffusion of air into the heterocyst is a compromise between the maximum influx of dinitrogen gas while oxygen is kept sufficiently low to allow nitrogenase activity. This investigation tested the hypothesis that the heterocyst is capable of controlling the influx of air. Here, the thermophilic heterocystous cyanobacterium Fischerella sp. was analysed for the effects of oxygen concentration and temperature on nitrogenase activity. Dark nitrogenase activity is directly related to aerobic respiration and was therefore used as a measure of the influx of oxygen into the heterocyst. Above 30% O
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