Dataset Information

Complete Genome Sequence of Cyanobacterium Geminocystis sp. Strain NIES-3709, Which Harbors a Phycoerythrin-Rich Phycobilisome.

ABSTRACT: The cyanobacterium Geminocystis sp. strain NIES-3709 accumulates a larger amount of phycoerythrin than the related NIES-3708 strain does. Here, we determined the complete genome sequence of the NIES-3709 strain. Our genome data suggest that the different copy number of rod linker genes for phycoerythrin leads to the different phycoerythrin contents between the two strains.

SUBMITTER: Hirose Y

PROVIDER: S-EPMC4417701 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature

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Publications

Complete Genome Sequence of Cyanobacterium Geminocystis sp. Strain NIES-3709, Which Harbors a Phycoerythrin-Rich Phycobilisome.

Hirose Yuu Y Katayama Mitsunori M Ohtsubo Yoshiyuki Y Misawa Naomi N Iioka Erica E Suda Wataru W Oshima Kenshiro K Hanaoka Mitsumasa M Tanaka Kan K Eki Toshihiko T Ikeuchi Masahiko M Kikuchi Yo Y Ishida Makoto M Hattori Masahira M

Genome announcements 20150430 2

The cyanobacterium Geminocystis sp. strain NIES-3709 accumulates a larger amount of phycoerythrin than the related NIES-3708 strain does. Here, we determined the complete genome sequence of the NIES-3709 strain. Our genome data suggest that the different copy number of rod linker genes for phycoerythrin leads to the different phycoerythrin contents between the two strains. ...[more]

PMID: 25931605

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Project description:BackgroundBacteria have been reported to exhibit complicated morphological colony patterns on solid media, depending on intracellular, and extracellular factors such as motility, cell propagation, and cell-cell interaction. We isolated the filamentous cyanobacterium, Pseudanabaena sp. NIES-4403 (Pseudanabaena, hereafter), that forms scattered (discrete) migrating colonies on solid media. While the scattered colony pattern has been observed in some bacterial species, the mechanism underlying such a pattern still remains obscure.ResultsWe studied the morphology of Pseudanabaena migrating collectively and found that this species forms randomly scattered clusters varying in size and further consists of a mixture of comet-like wandering clusters and disk-like rotating clusters. Quantitative analysis of the formation of these wandering and rotating clusters showed that bacterial filaments tend to follow trajectories of previously migrating filaments at velocities that are dependent on filament length. Collisions between filaments occurred without crossing paths, which enhanced their nematic alignments, giving rise to bundle-like colonies. As cells increased and bundles aggregated, comet-like wandering clusters developed. The direction and velocity of the movement of cells in comet-like wandering clusters were highly coordinated. When the wandering clusters entered into a circular orbit, they turned into rotating clusters, maintaining a more stable location. Disk-like rotating clusters may rotate for days, and the speed of cells within a rotating cluster increases from the center to the outmost part of the cluster. Using a mathematical modeling with simplified assumption we reproduced some features of the scattered pattern including migrating clusters.ConclusionBased on these observations, we propose that Pseudanabaena forms scattered migrating colonies that undergo a series of transitions involving several morphological patterns. A simplified model is able to reproduce some features of the observed migrating clusters.

Dataset Information

Complete Genome Sequence of Cyanobacterium Geminocystis sp. Strain NIES-3709, Which Harbors a Phycoerythrin-Rich Phycobilisome.

Publications

Complete Genome Sequence of Cyanobacterium Geminocystis sp. Strain NIES-3709, Which Harbors a Phycoerythrin-Rich Phycobilisome.

Similar Datasets

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