ArticleJournal of bacteriology2010
Inactivation of a heterocyst-specific invertase indicates a principal role of sucrose catabolism in heterocysts of Anabaena sp.
Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 64 citations in OpenAlex.
- Hacking heterocysts: advances in the genetic regulation of heterocyst differentiation.Archives of microbiology · 2025Review
- Article
- Retention of a SulP-family bicarbonate transporter in a periplasmic N2-fixing cyanobacterial endosymbiont of an open ocean diatom.The ISME journal · 2025Article
- Heterologous expression of genes from a cyanobacterial endosymbiont highlights substrate exchanges with its diatom host.PNAS nexus · 2023Article
- Cyanobacteria as cell factories for the photosynthetic production of sucrose.Frontiers in microbiology · 2023Review
- The rate and fate of NThe ISME journal · 2022Article
- Article
- Coexistence of Communicating and Noncommunicating Cells in the Filamentous CyanobacteriummSphere · 2021Article
- Stress Signaling in Cyanobacteria: A Mechanistic Overview.Life (Basel, Switzerland) · 2020Review
- The Inorganic Nutrient Regime and themSphere · 2020Article
- Metalloproteins in the Biology of Heterocysts.Life (Basel, Switzerland) · 2019Review
- The effect of oxygen concentration and temperature on nitrogenase activity in the heterocystous cyanobacterium Fischerella sp.Scientific reports · 2017Article
- Specific Glucoside Transporters Influence Septal Structure and Function in the Filamentous, Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120.Journal of bacteriology · 2017Article
- Requirement of Fra proteins for communication channels between cells in the filamentous nitrogen-fixing cyanobacterium Anabaena sp. PCC 7120.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- Functional Dependence between Septal Protein SepJ from Anabaena sp. Strain PCC 7120 and an Amino Acid ABC-Type Uptake Transporter.Journal of bacteriology · 2015Article
- Amino Acid Transporters and Release of Hydrophobic Amino Acids in the Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120.Life (Basel, Switzerland) · 2015Article
- Article
- Sucrose in cyanobacteria: from a salt-response molecule to play a key role in nitrogen fixation.Life (Basel, Switzerland) · 2015Review
- Article
- Deep sequencing of HetR-bound DNA reveals novel HetR targets in Anabaena sp. strain PCC7120.BMC microbiology · 2014Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Anabaena sp. strain PCC 7120 is a filamentous cyanobacterium that carries out N(2) fixation in specialized cells called heterocysts, which exchange nutrients and regulators with the filament's vegetative cells that perform the photosynthetic fixation of CO(2). The Anabaena genome carries two genes coding for alkaline/neutral invertases, invA and invB. As shown by Northern analysis, both genes were expressed monocistronically and induced under nitrogen deprivation, although induction was stronger for invB than for invA. Whereas expression of an InvA-N-GFP fusion (green fluorescent protein [GFP] fused to the N terminus of the InvA protein [InvA-N]) was homogeneous along the cyanobacterial filament, consistent with the lack of dependence on HetR, expression of an InvB-N-GFP fusion upon combined nitrogen deprivation took place mainly in differentiating and mature heterocysts. In an hetR genetic background, the InvB-N-GFP fusion was strongly expressed all along the filament. An insertional mutant of invA could grow diazotrophically but was impaired in nifHDK induction and exhibited an increased frequency of heterocysts, suggesting a regulatory role of the invertase-mediated carbon flux in vegetative cells. In contrast, an invB mutant was strongly impaired in diazotrophic growth, showing a crucial role of sucrose catabolism mediated by the InvB invertase in the heterocysts.
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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.