Transition to spatiotemporal intermittency and defect turbulence in systems under translational coupling

2020 ◽  
Author(s):  
Gregorio González-Cortés
Keyword(s):  
Translational Coupling ◽  
Spatiotemporal Intermittency

Spatiotemporal intermittency in the Faraday experiment

1993 ◽  
Vol 70 (22) ◽  
pp. 3420-3423 ◽  
Author(s):  
Eric Bosch ◽  
Willem van de Water
Keyword(s):  
Spatiotemporal Intermittency

Spatiotemporal intermittency and chaos in stimulated Raman backscattering

1996 ◽  
Vol 34 (1) ◽  
pp. 19-24 ◽  
Author(s):  
M. M Škorić ◽  
M. S Jovanović ◽  
M. R Rajković
Keyword(s):  
Spatiotemporal Intermittency ◽  
Stimulated Raman Backscattering ◽  
Stimulated Raman

Spatiotemporal intermittency in ultrarelativistic nuclear collisions

1991 ◽  
Vol 44 (4) ◽  
pp. 1620-1628 ◽  
Author(s):  
P. Bożek ◽  
M. Płoszajczak
Keyword(s):  
Nuclear Collisions ◽  
Spatiotemporal Intermittency

scholarly journals Genome-Wide Effects of Selenium and Translational Uncoupling on Transcription in the Termite Gut Symbiont Treponema primitia

mBio ◽  
2013 ◽  
Vol 4 (6) ◽  
Author(s):  
Eric G. Matson ◽  
Adam Z. Rosenthal ◽  
Xinning Zhang ◽  
Jared R. Leadbetter
Keyword(s):  
Protein Synthesis ◽  
Large Body ◽  
Transcriptional Responses ◽  
Translational Coupling ◽  
Genome Wide ◽  
A Genome ◽  
Protein Encoding ◽  
Termite Gut ◽  
Inhibiting Protein ◽  
Encoding Genes

ABSTRACTWhen prokaryotic cells acquire mutations, encounter translation-inhibiting substances, or experience adverse environmental conditions that limit their ability to synthesize proteins, transcription can become uncoupled from translation. Such uncoupling is known to suppress transcription of protein-encoding genes in bacteria. Here we show that the trace element selenium controls transcription of the gene for the selenocysteine-utilizing enzyme formate dehydrogenase (fdhFSec) through a translation-coupled mechanism in the termite gut symbiontTreponema primitia, a member of the bacterial phylumSpirochaetes. We also evaluated changes in genome-wide transcriptional patterns caused by selenium limitation and by generally uncoupling translation from transcription via antibiotic-mediated inhibition of protein synthesis. We observed that inhibiting protein synthesis inT. primitiainfluences transcriptional patterns in unexpected ways. In addition to suppressing transcription of certain genes, the expected consequence of inhibiting protein synthesis, we found numerous examples in which transcription of genes and operons is truncated far downstream from putative promoters, is unchanged, or is even stimulated overall. These results indicate that gene regulation in bacteria allows for specific post-initiation transcriptional responses during periods of limited protein synthesis, which may depend both on translational coupling and on unclassified intrinsic elements of protein-encoding genes.IMPORTANCEA large body of literature demonstrates that the coupling of transcription and translation is a general and essential method by which bacteria regulate gene expression levels. However, the potential role of noncanonical amino acids in regulating transcriptional output via translational control remains, for the most part, undefined. Furthermore, the genome-wide transcriptional state in response to translational decoupling is not well quantified. The results presented here suggest that the noncanonical amino acid selenocysteine is able to tune transcription of an important metabolic gene via translational coupling. Furthermore, a genome-wide analysis reveals that transcriptional decoupling produces a wide-ranging effect and that this effect is not uniform. These results exemplify how growth conditions that impact translational processivity can rapidly feed back on transcriptional productivity of prespecified groups of genes, providing bacteria with an efficient response to environmental changes.

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