The role of the orfG gene in Freshwater Cyanobacterium Synechococcus elongatus

2021 ◽  
Author(s):  
Adrienne Ann Dolberry
Keyword(s):  
Synechococcus Elongatus ◽  
Freshwater Cyanobacterium

scholarly journals Role of KaiC phosphorylation in the circadian clock system of Synechococcus elongatus PCC 7942

2004 ◽  
Vol 101 (38) ◽  
pp. 13927-13932 ◽  
Author(s):  
T. Nishiwaki ◽  
Y. Satomi ◽  
M. Nakajima ◽  
C. Lee ◽  
R. Kiyohara ◽  
...  
Keyword(s):  
Circadian Clock ◽  
Synechococcus Elongatus ◽  
Clock System ◽  
Synechococcus Elongatus Pcc 7942 ◽  
Pcc 7942

In vitro and in vivo analyses of the role of the carboxysomal β-type carbonic anhydrase of the cyanobacterium Synechococcus elongatus in carboxylation of ribulose-1,5-bisphosphate

2014 ◽  
Vol 121 (2-3) ◽  
pp. 151-157 ◽  
Author(s):  
Takashi Nishimura ◽  
Osamu Yamaguchi ◽  
Nobuyuki Takatani ◽  
Shin-ichi Maeda ◽  
Tatsuo Omata
Keyword(s):  
Carbonic Anhydrase ◽  
Synechococcus Elongatus

scholarly journals Nitrite Transport Activity of the ABC-Type Cyanate Transporter of the Cyanobacterium Synechococcus elongatus

2009 ◽  
Vol 191 (10) ◽  
pp. 3265-3272 ◽  
Author(s):  
Shin-ichi Maeda ◽  
Tatsuo Omata
Keyword(s):  
Nitrogen Deficiency ◽  
Physiological Role ◽  
Synechococcus Elongatus ◽  
Transport Activity ◽  
High Affinity ◽  
Low Concentrations ◽  
Cyanobacterial Species ◽  
Relative Specificity ◽  
Nitrite Transport

ABSTRACT In addition to the ATP-binding cassette (ABC)-type nitrate/nitrite-bispecific transporter, which has a high affinity for both substrates (Km , ∼1 μM), Synechococcus elongatus has an active nitrite transport system with an apparent Km (NO2 −) value of 20 μM. We found that this activity depends on the cynABD genes, which encode a putative cyanate (NCO−) ABC-type transporter. Accordingly, nitrite transport by CynABD was competitively inhibited by NCO− with a Ki value of 0.025 μM. The transporter was induced under conditions of nitrogen deficiency, and the induced cells showed a V max value of 11 to 13 μmol/mg of chlorophyll per h for cyanate or nitrite, which could supply ∼30% of the amount of nitrogen required for optimum growth. Its relative specificity for the substrates and regulation at transcriptional and posttranslational levels suggested that the physiological role of the bispecific cyanate/nitrite transporter in S. elongatus is to allow nitrogen-deficient cells to assimilate low concentrations of cyanate in the medium. Its contribution to nitrite assimilation was significant in a mutant lacking the ABC-type nitrate/nitrite transporter, suggesting a possible role for CynABD in nitrite assimilation by cyanobacterial species that lack another high-affinity mechanism(s) for nitrite transport.

CELL AGGREGATION OF THE CYANOBACTERIUM SYNECHOCOCCUS ELONGATUS : ROLE OF THE ELECTRON TRANSPORT CHAIN

2000 ◽  
Vol 36 (4) ◽  
pp. 662-668 ◽  
Author(s):  
Michal Koblížek ◽  
Josef Komenda ◽  
Jiří Masojídek ◽  
Libor Pechar
Keyword(s):  
Electron Transport ◽  
Electron Transport Chain ◽  
Cell Aggregation ◽  
Synechococcus Elongatus ◽  
Transport Chain

The role of respiration during adaptation of the freshwater cyanobacterium Synechococcus 6311 to salinity

1986 ◽  
Vol 244 (2) ◽  
pp. 686-691 ◽  
Author(s):  
I.V. Fry ◽  
M. Huflejt ◽  
W.W.A. Erber ◽  
G.A. Peschek ◽  
L. Packer
Keyword(s):  
Freshwater Cyanobacterium

Scientists’ use of diagrams in developing mechanistic explanations

2014 ◽  
Vol 22 (2) ◽  
pp. 224-243 ◽  
Author(s):  
Daniel C. Burnston ◽  
Benjamin Sheredos ◽  
Adele Abrahamsen ◽  
William Bechtel
Keyword(s):  
Gene Expression ◽  
Crucial Role ◽  
Scientific Reasoning ◽  
Synechococcus Elongatus ◽  
Mechanistic Explanations ◽  
Biological Phenomena ◽  
Different Types ◽  
Published Paper

We explore the crucial role of diagrams in scientific reasoning, especially reasoning directed at developing mechanistic explanations of biological phenomena. We offer a case study focusing on one research project that resulted in a published paper advancing a new understanding of the mechanism by which the central circadian oscillator in Synechococcus elongatus controls gene expression. By examining how the diagrams prepared for the paper developed over the course of multiple drafts, we show how the process of generating a new explanation vitally involved the development and integration of multiple versions of different types of diagrams, and how reasoning about the mechanism proceeded in tandem with the development of the diagrams used to represent it.

Studies on the role of HtpG in the tetrapyrrole biosynthesis pathway of the cyanobacterium Synechococcus elongatus PCC 7942

2007 ◽  
Vol 352 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Satoru Watanabe ◽  
Toshiaki Kobayashi ◽  
Masakazu Saito ◽  
Masumi Sato ◽  
Kaori Nimura-Matsune ◽  
...  
Keyword(s):  
Synechococcus Elongatus ◽  
Biosynthesis Pathway ◽  
Tetrapyrrole Biosynthesis ◽  
Synechococcus Elongatus Pcc 7942 ◽  
Pcc 7942
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