ArticlePlant physiology2008
Transcript profiling reveals new insights into the acclimation of the mesophilic fresh-water cyanobacterium Synechococcus elongatus PCC 7942 to iron starvation.
Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 50 citations in OpenAlex.
- Phototrophs trade growth for defense through graded regulatory states under escalating oxidative stress.iScience · 2026Article
- Photoacclimation strategies in cyanobacterial photosynthesis under dynamic light environments: implications in growth, fitness, and biotechnological applications.Frontiers in microbiology · 2025Review
- A global transcriptional activator involved in the iron homeostasis in cyanobacteria.Science advances · 2024Article
- Intermolecular Gene Conversion for the Equalization of Genome Copies in the Polyploid HaloarchaeonGenes · 2024Article
- Bioavailable iron titrations reveal oceanic Synechococcus ecotypes optimized for different iron availabilities.ISME communications · 2022Article
- Genome Copy Number Quantification Revealed That the Ethanologenic Alpha-ProteobacteriumFrontiers in microbiology · 2021Article
- Synergic Effects of Temperature and Irradiance on the Physiology of the MarineFrontiers in microbiology · 2020Article
- A unique ferredoxin acts as a player in the low-iron response of photosynthetic organisms.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Tapping into cyanobacteria electron transfer for higher exoelectrogenic activity by imposing iron limited growth.RSC advances · 2018Article
- The identification of IsiA proteins binding chlorophyll d in the cyanobacterium Acaryochloris marina.Photosynthesis research · 2018Article
- Identification of Xenologs and Their Characteristic Low Expression Levels in the Cyanobacterium Synechococcus elongatus.Journal of molecular evolution · 2015Article
- Changes in gene expression, cell physiology and toxicity of the harmful cyanobacterium Microcystis aeruginosa at elevated CO2.Frontiers in microbiology · 2015Article
- Polyploidy in haloarchaea: advantages for growth and survival.Frontiers in microbiology · 2014Review
- Butanol tolerance regulated by a two-component response regulator Slr1037 in photosynthetic Synechocystis sp. PCC 6803.Biotechnology for biofuels · 2014Article
- Integrated OMICS guided engineering of biofuel butanol-tolerance in photosynthetic Synechocystis sp. PCC 6803.Biotechnology for biofuels · 2013Article
- Cross-species transcriptional network analysis reveals conservation and variation in response to metal stress in cyanobacteria.BMC genomics · 2013Article
- Acclimation of the Global Transcriptome of the Cyanobacterium Synechococcus sp. Strain PCC 7002 to Nutrient Limitations and Different Nitrogen Sources.Frontiers in microbiology · 2012Article
- Synechococcus sp. Strain PCC 7002 Transcriptome: Acclimation to Temperature, Salinity, Oxidative Stress, and Mixotrophic Growth Conditions.Frontiers in microbiology · 2012Article
- New insights into the function of the iron deficiency-induced protein C from Synechococcus elongatus PCC 7942.Photosynthesis research · 2011Article
- Metabolic and transcriptomic phenotyping of inorganic carbon acclimation in the Cyanobacterium Synechococcus elongatus PCC 7942.Plant physiology · 2011Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
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Abstract
The regulatory network for acclimation of the obligate photoautotrophic fresh water cyanobacterium Synechococcus elongatus PCC 7942 to iron (Fe) limitation was studied by transcript profiling with an oligonucleotide whole genome DNA microarray. Six regions on the chromosome with several Fe-regulated genes each were identified. The irpAB and fut region encode putative Fe uptake systems, the suf region participates in [Fe-sulfur] cluster assembly under oxidative stress and Fe limitation, the isiAB region encodes CP43' and flavodoxin, the idiCB region encodes the NuoE-like electron transport associated protein IdiC and the transcriptional activator IdiB, and the ackA/pgam region encodes an acetate kinase and a phosphoglycerate mutase. We also investigated the response of two S. elongatus PCC 7942 mutants to Fe starvation. These were mutant K10, lacking IdiB but containing IdiC, and mutant MuD, representing a idiC-merodiploid mutant with a strongly reduced amount of IdiC as well as IdiB. The absence of IdiB in mutant K10 or the strongly reduced amount of IdiB in mutant MuD allowed for the identification of additional members of the Fe-responsive IdiB regulon. Besides idiA and the irpAB operon somB(1), somA(2), ftr1, ackA, pgam, and nat also seem to be regulated by IdiB. In addition to the reduced amount of IdiB in MuD, the low concentration of IdiC may be responsible for a number of additional changes in the abundance of mainly photosynthesis-related transcripts as compared to the wild type and mutant K10. This fact may explain why it has been impossible to obtain a fully segregated IdiC-free mutant, whereas it was possible to obtain a fully segregated IdiB-free mutant.
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