Selection and characterization of transposon tagging mutants ofSynechocystis sp. PCC 6803 sensitive to high-light and oxidative Stresses

2004 ◽  
Vol 47 (4) ◽  
pp. 289-299 ◽  
Author(s):  
Eun Kyeong Song ◽  
Ismayil S. Zulfugarov ◽  
Jin-Hong Kim ◽  
Eun Ha Kim ◽  
Woo Sung Lee ◽  
...  
Keyword(s):  
High Light ◽  
Transposon Tagging ◽  
Oxidative Stresses ◽  
Pcc 6803

scholarly journals Characterization of High-light-responsive Promoters of the psaAB Genes in Synechocystis sp. PCC 6803

2006 ◽  
Vol 47 (7) ◽  
pp. 878-890 ◽  
Author(s):  
Masayuki Muramatsu ◽  
Yukako Hihara
Keyword(s):  
High Light ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals Cloning of the psbK gene from Synechocystis sp. PCC 6803 and characterization of photosystem II in mutants lacking PSII-K

1991 ◽  
Vol 266 (17) ◽  
pp. 11111-11115
Author(s):  
M. Ikeuchi ◽  
B. Eggers ◽  
G.Z. Shen ◽  
A. Webber ◽  
J.J. Yu ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals Recombinant Deg/HtrA proteases from Synechocystis sp. PCC 6803 differ in substrate specificity, biochemical characteristics and mechanism

2011 ◽  
Vol 435 (3) ◽  
pp. 733-742 ◽  
Author(s):  
Pitter F. Huesgen ◽  
Helder Miranda ◽  
XuanTam Lam ◽  
Manuela Perthold ◽  
Holger Schuhmann ◽  
...  
Keyword(s):  
Serine Proteases ◽  
Protein Quality ◽  
Biochemical Characterization ◽  
Pdz Domain ◽  
Control Mechanisms ◽  
Ph Optimum ◽  
Periplasmic Proteins ◽  
Synechocystis Sp ◽  
Pcc 6803

Cyanobacteria require efficient protein-quality-control mechanisms to survive under dynamic, often stressful, environmental conditions. It was reported that three serine proteases, HtrA (high temperature requirement A), HhoA (HtrA homologue A) and HhoB (HtrA homologue B), are important for survival of Synechocystis sp. PCC 6803 under high light and temperature stresses and might have redundant physiological functions. In the present paper, we show that all three proteases can degrade unfolded model substrates, but differ with respect to cleavage sites, temperature and pH optima. For recombinant HhoA, and to a lesser extent for HtrA, we observed an interesting shift in the pH optimum from slightly acidic to alkaline in the presence of Mg2+ and Ca2+ ions. All three proteases formed different homo-oligomeric complexes with and without substrate, implying mechanistic differences in comparison with each other and with the well-studied Escherichia coli orthologues DegP (degradation of periplasmic proteins P) and DegS. Deletion of the PDZ domain decreased, but did not abolish, the proteolytic activity of all three proteases, and prevented substrate-induced formation of complexes higher than trimers by HtrA and HhoA. In summary, biochemical characterization of HtrA, HhoA and HhoB lays the foundation for a better understanding of their overlapping, but not completely redundant, stress-resistance functions in Synechocystis sp. PCC 6803.

Preliminary characterization of a photo-tolerant mutant of Synechocystis sp. PCC 6803 obtained by in vitro random mutagenesis of psbA2

Plant Science ◽  
1996 ◽  
Vol 115 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Yoshihiro Narusaka ◽  
Akio Murakami ◽  
Mari Saeki ◽  
Hirokazu Kobayashi ◽  
Kimiyuki Satoh
Keyword(s):  
Random Mutagenesis ◽  
Preliminary Characterization ◽  
Tolerant Mutant ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals Characterization of Chlamydomonas reinhardtii phosphatidylglycerophosphate synthase in Synechocystis sp. PCC 6803

2015 ◽  
Vol 6 ◽  
Author(s):  
Chun-Hsien Hung ◽  
Kaichiro Endo ◽  
Koichi Kobayashi ◽  
Yuki Nakamura ◽  
Hajime Wada
Keyword(s):  
Chlamydomonas Reinhardtii ◽  
Synechocystis Sp ◽  
Pcc 6803

scholarly journals Identification and Characterization of a Novel cAMP Receptor Protein in the CyanobacteriumSynechocystissp. PCC 6803

2000 ◽  
Vol 275 (9) ◽  
pp. 6241-6245 ◽  
Author(s):  
Hidehisa Yoshimura ◽  
Toru Hisabori ◽  
Shuichi Yanagisawa ◽  
Masayuki Ohmori
Keyword(s):  
Receptor Protein ◽  
Camp Receptor Protein ◽  
Camp Receptor ◽  
Identification And Characterization ◽  
Pcc 6803

scholarly journals Agronegócio e novas regionalizações no Brasil

2011 ◽  
Vol 13 (2) ◽  
pp. 153 ◽  
Author(s):  
Denise Elias
Keyword(s):  
High Light ◽  
Agricultural Activity ◽  
Agricultural Region ◽  
Regional Restructuring ◽  
Agricultural Regions ◽  
To Receive ◽  
Identification And Characterization

As transformações ocorridas na atividade agropecuária brasileira nas últimas cinco décadas têm profundos impactos sobre a (re)organização do território brasileiro, resultando em novos arranjos territoriais. Entre esses, destacam-se os inerentes ao agronegócio globalizado, áreas escolhidas para receber os mais expressivos investimentos produtivos do setor, representando suas áreas mais competitivas, as quais denominamos Regiões Produtivas Agrícolas (RPAs). Os principais objetivos desse texto são: debater a noção de RPA; apresentar os elementos de identificação e caracterização da mencionada região; aperfeiçoar o caminho analítico que vem sendo trilhado e incrementar a noção no contexto dos estudos geográficos, na perspectiva de uma possível consolidação conceitual dessa ideia. Palavras-chave: agronegócio; urbanização dispersa; reestruturação urbana e regional. Abstract: The changes in the agricultural activity in the last five decades have profound impacts on the (re) organization of the Brazilian territory, resulting in new territorial arrangements. Among them, we high light those related to agribusiness globalized areas chosen to receive the most significant productive investments in the sector, that represent its most competitive areas, which we are calling Productive Agricultural Regions (RPA). The main objectives of this paper are: to discuss the concept of Productive Agricultural Region (RPA); to present evidences for the identification and characterization of the mentioned region; to improve the analytical path that has been trodden in the context of geographic studies, in order to consolidate this conceptual idea. Keywords: agribusiness; disperse urbanization; urban and regional restructuring.

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