Salinity-dependent copy number increase of a marine cyanobacterial endogenous plasmid

Haruko Takeyama; J. Grant Burgess; Hiroaki Sudo; Koji Sode; Tadashi Matsunaga

doi:10.1016/0378-1097(91)90653-R

Salinity-dependent copy number increase of a marine cyanobacterial endogenous plasmid

Haruko Takeyama, J. Grant Burgess, Hiroaki Sudo, Koji Sode, Tadashi Matsunaga^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A marine cyanobacterium Synechococcus sp. NKBG 042902 grown in the presence of various NaCl concentrations showed different plasmid profiles. This strain possesses a 2.7-kb endogenous plasmid pSY10, whose copy number increased five-fold when the salinity of the growth medium was increased from 0 to 3% NaCl. Cells were grown initially in a fresh water medium and then transferred to a NaCl supplemented medium. The copy number of pSY10 began to increase after 7 h of incubation in 3% NaCl BG11 medium. This phenomenon was specific to NaCl and did not occur when other osmotica such as KCl and sorbitol were used. This is the first report of a cyanobacterial plasmid with a salinity-dependent copy number.

Original language	English
Pages (from-to)	95-98
Number of pages	4
Journal	FEMS Microbiology Letters
Volume	90
Issue number	1
DOIs	https://doi.org/10.1016/0378-1097(91)90653-R
Publication status	Published - 1991 Dec 15
Externally published	Yes

Keywords

Copy number
Marine cyanobacterium
Plasmid
Sodium chloride
Synechococcus

ASJC Scopus subject areas

Microbiology
Molecular Biology
Genetics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/0378-1097(91)90653-R

Cite this

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title = "Salinity-dependent copy number increase of a marine cyanobacterial endogenous plasmid",

abstract = "A marine cyanobacterium Synechococcus sp. NKBG 042902 grown in the presence of various NaCl concentrations showed different plasmid profiles. This strain possesses a 2.7-kb endogenous plasmid pSY10, whose copy number increased five-fold when the salinity of the growth medium was increased from 0 to 3% NaCl. Cells were grown initially in a fresh water medium and then transferred to a NaCl supplemented medium. The copy number of pSY10 began to increase after 7 h of incubation in 3% NaCl BG11 medium. This phenomenon was specific to NaCl and did not occur when other osmotica such as KCl and sorbitol were used. This is the first report of a cyanobacterial plasmid with a salinity-dependent copy number.",

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AU - Takeyama, Haruko

AU - Grant Burgess, J.

AU - Sudo, Hiroaki

AU - Sode, Koji

AU - Matsunaga, Tadashi

PY - 1991/12/15

Y1 - 1991/12/15

N2 - A marine cyanobacterium Synechococcus sp. NKBG 042902 grown in the presence of various NaCl concentrations showed different plasmid profiles. This strain possesses a 2.7-kb endogenous plasmid pSY10, whose copy number increased five-fold when the salinity of the growth medium was increased from 0 to 3% NaCl. Cells were grown initially in a fresh water medium and then transferred to a NaCl supplemented medium. The copy number of pSY10 began to increase after 7 h of incubation in 3% NaCl BG11 medium. This phenomenon was specific to NaCl and did not occur when other osmotica such as KCl and sorbitol were used. This is the first report of a cyanobacterial plasmid with a salinity-dependent copy number.

AB - A marine cyanobacterium Synechococcus sp. NKBG 042902 grown in the presence of various NaCl concentrations showed different plasmid profiles. This strain possesses a 2.7-kb endogenous plasmid pSY10, whose copy number increased five-fold when the salinity of the growth medium was increased from 0 to 3% NaCl. Cells were grown initially in a fresh water medium and then transferred to a NaCl supplemented medium. The copy number of pSY10 began to increase after 7 h of incubation in 3% NaCl BG11 medium. This phenomenon was specific to NaCl and did not occur when other osmotica such as KCl and sorbitol were used. This is the first report of a cyanobacterial plasmid with a salinity-dependent copy number.

KW - Copy number

KW - Marine cyanobacterium

KW - Plasmid

KW - Sodium chloride

KW - Synechococcus

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Salinity-dependent copy number increase of a marine cyanobacterial endogenous plasmid

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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