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For the first time in Lactococcus lactis, amino acid starvation response was characterized. The natural imposition of isoleucine starvation, by its consumption during growth, associated to transcript profiling, allowed defining exhaustively this stress stimulon. It consisted of a general induction o...
ORGANISM(S): Lactococcus lactis 
We performed Tn-Seq to identify genetic fitness determinants for starvation survival in Pseudomonas aeruginosa. A pooled mutant library of approximately 180,000 randomly inserted transposon mutants was grown into stationary phase in rich medium (lysogeny broth) and an aliquot of this mutant pool was...
ORGANISM(S): Pseudomonas aeruginosa 
Metabolite concentrations can regulate gene expression, which can in turn regulate metabolic activity. The extent to which functionally related transcripts and metabolites show similar patterns of concentration changes, however, remains unestablished. We have therefore measured and analyzed the met...
ORGANISM(S): Saccharomyces cerevisiae 
gnp06-01_agriarray - nitrogen starvation - Several factors affect today a more extended use of microarrays for research and as a diagnosis tool. These factors are the experimental cost, the reproducibility of the measurements and the format of the analyses. This project aims at bringing solutions i...
ORGANISM(S): Arabidopsis thaliana 
Amino acid assimilation and metabolism are crucial for bacterial growth and survival and this is particularly obvious for lactic acid bacteria (LAB) that are generally auxotroph for various amino acids. However, amino acid assimilation is poorly characterized and a complete description of the respon...
ORGANISM(S): Lactococcus lactis 
Microarray analysis of Aspergillus niger under conditions with differing combinations of carbon source, nitrogen source, nitrogen concentration, and culture pH Fermentor cultures were grown in minimal medium (MM) at a constant temperature of 30 ± 0.5 ºC and with differing combinations of carbon sour...
ORGANISM(S): Aspergillus niger 
Transcriptional analysis of the cyanotroph Pseudomonas pseudoalcaligenes CECT5344 in response to cyanide present in wastewaters from industrial activities, such as jewelry and electroplating activities Four-conditions experiment, including three different nitrogen sources (ammonium, sodium cyanide o...
ORGANISM(S): Pseudomonas pseudoalcaligenes CECT 5344 
Corynebacterium glutamicum, a gram-positive soil bacterium used for the industrial production of amino acids such as L-glutamate and L-lysine, is able to use a number of different nitrogen sources, such as ammonium, urea, or creatinine. In this communication, we show that L-glutamine serves as an ex...
ORGANISM(S): Corynebacterium glutamicum ATCC 13032 
In response to limited nitrogen and abundant carbon sources, diploid Saccharomyces cerevisiae strains undergo a filamentous transition in cell growth as part of pseudohyphal differentiation. Use of the disaccharide maltose as the principal carbon source, in contrast to the preferred nutrient monosac...
ORGANISM(S): Saccharomyces cerevisiae 
We have done next generation sequencing of optically thin, exponentialy growing Phaeodactylum tricornutum cultures grown with and without nitrogen source to improve our undestanding of the pathways regulation under conditions that promote lipid accumulation (N-starvation). 3 biologically independent...
ORGANISM(S): Phaeodactylum tricornutum 
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