An overview of the genome of Nostoc punctiforme, a multicellular, symbiotic cyanobacterium

@article{Meeks2004AnOO,
  title={An overview of the genome of Nostoc punctiforme, a multicellular, symbiotic cyanobacterium},
  author={John C. Meeks and Jeff Elhai and Teresa Thiel and Malcolm Potts and Frank W. Larimer and Jane E. Lamerdin and Paul F. Predki and Ronald M. Atlas},
  journal={Photosynthesis Research},
  year={2004},
  volume={70},
  pages={85-106}
}
Nostoc punctiforme is a filamentous cyanobacterium with extensive phenotypic characteristics and a relatively large genome, approaching 10 Mb. The phenotypic characteristics include a photoautotrophic, diazotrophic mode of growth, but N. punctiforme is also facultatively heterotrophic; its vegetative cells have multiple developmental alternatives, including terminal differentiation into nitrogen-fixing heterocysts and transient differentiation into spore-like akinetes or motile filaments called… 
A polyketide interferes with cellular differentiation in the symbiotic cyanobacterium Nostoc punctiforme.
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It is postulate that extracellular metabolites of Nostoc punctiforme act as life cycle governing factors (LCGFs) and that the ratio between distinct factors may guide the differentiation into different life stages.
Cellular differentiation in the cyanobacterium Nostoc punctiforme
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The regulatory circuits of three cellular differentiation events and symbiotic interactions of N. punctiforme can be experimentally analyzed by functional genomics and hypothesized to depart from the vegetative cell cycle following separate and distinct events.
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Intracellular symbiosis was proved to be essentially related to Nostoc evolution, and the adaptation of its members to free-living environments was coupled with a large preference for gene acquisition involved in gene repair and recombination.
Nostopeptolide plays a governing role during cellular differentiation of the symbiotic cyanobacterium Nostoc punctiforme
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The metabolite was found to be strictly down-regulated in symbiosis with Gunnera manicata and Blasia pusilla, whereas other metabolites are up-regulated, as demonstrated via MALDI imaging, suggesting plants modulate the fine-balanced cross-talk network of secondary metabolites within N. punctiforme.
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The resequenced genome of N. punctiforme ATCC 29133 and the annotation of both genomes are deposited in the Department of Energy’s IMG database to facilitate easy genome exploration by the scientific community without the need of in-depth bioinformatics skills.
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Clear differences in metabolic and morphological adaptations of akinetes of two Nostocales living in different habitats.
TLDR
The clear differences in the metabolic and morphological adaptations of akinetes of the two species could be related to their different lifestyles and pave the way for genetic and functional studies of akinete differentiation in these species.
Genome-wide analysis of putative peroxiredoxin in unicellular and filamentous cyanobacteria
TLDR
A general framework of the sequence-structure-function connections of the PRXs was revealed, which may facilitate functional investigations ofPRXs in various organisms and imply that cyanobacteria adopt similar catalytic mechanisms as eukaryotes.
A Tripartite, Hierarchical Sigma Factor Cascade Promotes Hormogonium Development in the Filamentous Cyanobacterium Nostoc punctiforme
TLDR
To investigate the role of sigma factors in the gene regulatory network (GRN) controlling hormogonium development, a combination of genetic, immunological, and time-resolved transcriptomic analyses were conducted in the model filamentous cyanobacterium Nostoc punctiforme, which, unlike other common model cyanobacteria, retains the developmental complexity of field isolates.
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