Comparison of the function of L- and D-proline as compatible solute inEscherichia coli K-12 under high osmolarity

2007 ◽  
Vol 57 (2) ◽  
pp. 265-268 ◽  
Author(s):  
Hideaki Sasaki ◽  
Ai Takaki ◽  
Akinobu Oshima ◽  
Akio Ishida ◽  
Shinichi Nagata
Keyword(s):  
Compatible Solute ◽  
Inescherichia Coli ◽  
High Osmolarity ◽  
K 12

A thermosensitivepdxJ mutation affecting vitamin B6 biosynthesis inEscherichia coli K-12

1979 ◽  
Vol 2 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Diane Apostolakos ◽  
Edward A. Birge
Keyword(s):  
Vitamin B6 ◽  
Inescherichia Coli ◽  
K 12

Membrane mutation affecting energy-linked functions inEscherichia coli K 12

1977 ◽  
Vol 22 (3) ◽  
pp. 198-205 ◽  
Author(s):  
H. Braná ◽  
J. Hubáček ◽  
D. Michaljaničová ◽  
I. Holubová ◽  
K. Čejka
Keyword(s):  
Inescherichia Coli ◽  
K 12

Promoters of thephr gene inEscherichia coli K-12

1995 ◽  
Vol 248 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Chuping Ma ◽  
Claud S. Rupert
Keyword(s):  
Inescherichia Coli ◽  
K 12

De novo gene duplication versus reactivation of cryptic genes inEscherichia coli K-12

1970 ◽  
Vol 108 (2) ◽  
pp. 154-157 ◽  
Author(s):  
Raymond Cunin ◽  
Dirk Elseviers ◽  
Nicolas Glansdorff
Keyword(s):  
Gene Duplication ◽  
De Novo ◽  
Inescherichia Coli ◽  
Cryptic Genes ◽  
De Novo Gene ◽  
K 12

Genetic map position of the cistron coding for isocitrate dehydrogenase inEscherichia coli K-12

1982 ◽  
Vol 7 (1) ◽  
pp. 45-47 ◽  
Author(s):  
Diane Apostolakos ◽  
Paul A. Menter ◽  
Brian J. Rampsch ◽  
Henry C. Reeves ◽  
Edward A. Birge
Keyword(s):  
Genetic Map ◽  
Isocitrate Dehydrogenase ◽  
Inescherichia Coli ◽  
K 12

scholarly journals Novel regulatory systemnemRA-gloAfor electrophile reduction inEscherichia coli K-12

2013 ◽  
Vol 88 (2) ◽  
pp. 395-412 ◽  
Author(s):  
Changhan Lee ◽  
Jongcheol Shin ◽  
Chankyu Park
Keyword(s):  
Inescherichia Coli ◽  
K 12

Use of the Mud(Ap,lac) bacteriophage to study the regulation of L-proline biosynthetic genes inEscherichia coli K-12

1983 ◽  
Vol 9 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Pablo E. Hernandez ◽  
Juan A. Ordoñez ◽  
B. Sanz Perez
Keyword(s):  
Inescherichia Coli ◽  
Biosynthetic Genes ◽  
K 12

scholarly journals Genome-Wide Transcriptional Responses of Escherichia coli K-12 to Continuous Osmotic and Heat Stresses

2008 ◽  
Vol 190 (10) ◽  
pp. 3712-3720 ◽  
Author(s):  
Thusitha S. Gunasekera ◽  
Laszlo N. Csonka ◽  
Oleg Paliy
Keyword(s):  
Oxidative Stress ◽  
Escherichia Coli ◽  
High Temperature ◽  
Osmotic Stress ◽  
Stress Responses ◽  
Transcriptional Responses ◽  
High Osmolarity ◽  
Genome Wide ◽  
K 12 ◽  
And Oxidative Stress

ABSTRACT Osmotic stress is known to increase the thermotolerance and oxidative-stress resistance of bacteria by a mechanism that is not adequately understood. We probed the cross-regulation of continuous osmotic and heat stress responses by characterizing the effects of external osmolarity (0.3 M versus 0.0 M NaCl) and temperature (43°C versus 30°C) on the transcriptome of Escherichia coli K-12. Our most important discovery was that a number of genes in the SoxRS and OxyR oxidative-stress regulons were up-regulated by high osmolarity, high temperature, or a combination of both stresses. This result can explain the previously noted cross-protection of osmotic stress against oxidative and heat stresses. Most of the genes shown in previous studies to be induced during the early phase of adaptation to hyperosmotic shock were found to be also overexpressed under continuous osmotic stress. However, there was a poorer overlap between the heat shock genes that are induced transiently after high temperature shifts and the genes that we found to be chronically up-regulated at 43°C. Supplementation of the high-osmolarity medium with the osmoprotectant glycine betaine, which reduces the cytoplasmic K+ pool, did not lead to a universal reduction in the expression of osmotically induced genes. This finding does not support the hypothesis that K+ is the central osmoregulatory signal in Enterobacteriaceae.

Mutation affecting normal colony formation inEscherichia coli K-12

1972 ◽  
Vol 17 (1) ◽  
pp. 55-62 ◽  
Author(s):  
J. Hubáček ◽  
H. Braná ◽  
J. König ◽  
J. Čáslavská
Keyword(s):  
Colony Formation ◽  
Inescherichia Coli ◽  
K 12
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