ArticlePlant physiology2013
A Nostoc punctiforme sugar transporter necessary to establish a Cyanobacterium-plant symbiosis.
Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 65 citations in OpenAlex.
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- Nitrogen-fixing microbes gain genes in diverse types of living environments.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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- Adaptive pangenomic remodeling in the Azolla cyanobiont amid a transient microbiome.The ISME journal · 2025Article
- Central metabolism and development are rewired in lichenized cyanobacteria.The ISME journal · 2025Article
- Phylometagenomics of cycad coralloid roots reveals shared symbiotic signals.Microbial genomics · 2024Article
- Heterotrophy among Cyanobacteria.ACS omega · 2023Review
- Hormogonium Development and Motility in Filamentous Cyanobacteria.Applied and environmental microbiology · 2023Review
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- Process Technologies of Cyanobacteria.Advances in biochemical engineering/biotechnology · 2023Article
- Sustainable Production of Pigments from Cyanobacteria.Advances in biochemical engineering/biotechnology · 2023Article
- Quantitative Proteomics at Early Stages of the Symbiotic Interaction Between Oryza sativa and Nostoc punctiforme Reveals Novel Proteins Involved in the Symbiotic Crosstalk.Plant & cell physiology · 2022Article
- Bioavailable iron titrations reveal oceanic Synechococcus ecotypes optimized for different iron availabilities.ISME communications · 2022Article
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- The rate and fate of NThe ISME journal · 2022Article
- Genetic and lipidomic analyses suggest thatAccess microbiology · 2022Article
- Evolutionary genomic insights into cyanobacterial symbioses in plants.Quantitative plant biology · 2022Review
- Comparative Genomics Provides Insight into the Function of Broad-Host Range Sponge Symbionts.mBio · 2021Article
- Comparative genomic insights into culturable symbiotic cyanobacteria from the water fernMicrobial genomics · 2021Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In cyanobacteria-plant symbioses, the symbiotic nitrogen-fixing cyanobacterium has low photosynthetic activity and is supplemented by sugars provided by the plant partner. Which sugars and cyanobacterial sugar uptake mechanism(s) are involved in the symbiosis, however, is unknown. Mutants of the symbiotically competent, facultatively heterotrophic cyanobacterium Nostoc punctiforme were constructed bearing a neomycin resistance gene cassette replacing genes in a putative sugar transport gene cluster. Results of transport activity assays using (14)C-labeled fructose and glucose and tests of heterotrophic growth with these sugars enabled the identification of an ATP-binding cassette-type transporter for fructose (Frt), a major facilitator permease for glucose (GlcP), and a porin needed for the optimal uptake of both fructose and glucose. Analysis of green fluorescent protein fluorescence in strains of N. punctiforme bearing frt::gfp fusions showed high expression in vegetative cells and akinetes, variable expression in hormogonia, and no expression in heterocysts. The symbiotic efficiency of N. punctiforme sugar transport mutants was investigated by testing their ability to infect a nonvascular plant partner, the hornwort Anthoceros punctatus. Strains that were specifically unable to transport glucose did not infect the plant. These results imply a role for GlcP in establishing symbiosis under the conditions used in this work.
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