José Ruiz-Herrera

Insights from the genome of the biotrophic fungal plant pathogen Ustilago maydis (2006)

Kahmann, Regine, Bölker, Michael, Ma, Li-Jun, Brefort, Thomas, Saville, Barry J, ...

Ustilago maydis is a ubiquitous pathogen of maize and a well-established model organism for the study of plant-microbe interactions. This basidiomycete fungus does not use aggressive virulence...

Control of Filament Formation in Candida albicans by Polyamine Levels

Herrero, Ana B., López, M. Carmen, García, Susana, Schmidt, Axel, Spaltmann, Frank, Ruiz-Herrera, José, ...

Candida albicans, the most common fungal pathogen, regulates its cellular morphology in response to environmental conditions. The ODC gene, which encodes ornithine decarboxylase, a key enzyme in...

Dissimilation of Methionine by Achromobacter starkeyi1

Ruiz-Herrera, José, Starkey, Robert L.

Methionine was decomposed by some bacteria which were isolated from soil. The sulfur of the methionine was liberated as methanethiol, and part of this became oxidized to dimethyl disulfide. Detailed...

Nitrate Reductase Complex of Escherichia coli K-12: Isolation and Characterization of Mutants Unable to Reduce Nitrate

Ruiz-Herrera, José, Showe, Michael K., DeMoss, J. A.

Thirty-eight mutants unable to reduce nitrate were isolated from Escherichia coli and characterized biochemically and genetically. All of the mutants exhibited reduced or insignificant levels of...

Dissimilation of Methionine by Fungi1

Ruiz-Herrera, José, Starkey, Robert L.

Soil fungi that attacked methionine required a utilizable source of energy such as glucose for growth. This is an example of co-dissimilation. Experiments with one of the fungi, representative of the...

Nitrate Reductase Complex of Escherichia coli K-12: Participation of Specific Formate Dehydrogenase and Cytochrome b1 Components in Nitrate Reduction

Ruiz-Herrera, José, DeMoss, J. A.

The participation of distinct formate dehydrogenases and cytochrome components in nitrate reduction by Escherichia coli was studied. The formate dehydrogenase activity present in extracts prepared...

Dissimilation of Methionine by a Demethiolase of Aspergillus Species1

Ruiz-Herrera, José, Starkey, Robert L.

Enzyme preparations obtained from the mycelium of Aspergillus species broke down methionine by co-dissimilation. The deaminase and demethiolase activities of crude extracts were increased 100-fold by...

The RIM101/pacC Homologue from the Basidiomycete Ustilago maydis Is Functional in Multiple pH-Sensitive Phenomena

Aréchiga-Carvajal, Elva T., Ruiz-Herrera, José

A homologue of the gene encoding the transcription factor Rim101 (PacC), involved in pH signal transduction in fungi, was identified in the pathogenic basidiomycete Ustilago maydis. The gene (RIM101)...

Control of Filament Formation in Candida albicans by Polyamine Levels

Herrero, Ana B., López, M. Carmen, García, Susana, Schmidt, Axel, Spaltmann, Frank, Ruiz-Herrera, José, ...

Candida albicans, the most common fungal pathogen, regulates its cellular morphology in response to environmental conditions. The ODC gene, which encodes ornithine decarboxylase, a key enzyme in...

Dissimilation of Methionine by Achromobacter starkeyi1

Ruiz-Herrera, José, Starkey, Robert L.

Methionine was decomposed by some bacteria which were isolated from soil. The sulfur of the methionine was liberated as methanethiol, and part of this became oxidized to dimethyl disulfide. Detailed...

Nitrate Reductase Complex of Escherichia coli K-12: Isolation and Characterization of Mutants Unable to Reduce Nitrate

Ruiz-Herrera, José, Showe, Michael K., DeMoss, J. A.

Thirty-eight mutants unable to reduce nitrate were isolated from Escherichia coli and characterized biochemically and genetically. All of the mutants exhibited reduced or insignificant levels of...

Dissimilation of Methionine by Fungi1

Ruiz-Herrera, José, Starkey, Robert L.

Soil fungi that attacked methionine required a utilizable source of energy such as glucose for growth. This is an example of co-dissimilation. Experiments with one of the fungi, representative of the...

Nitrate Reductase Complex of Escherichia coli K-12: Participation of Specific Formate Dehydrogenase and Cytochrome b1 Components in Nitrate Reduction

Ruiz-Herrera, José, DeMoss, J. A.

The participation of distinct formate dehydrogenases and cytochrome components in nitrate reduction by Escherichia coli was studied. The formate dehydrogenase activity present in extracts prepared...

Dissimilation of Methionine by a Demethiolase of Aspergillus Species1

Ruiz-Herrera, José, Starkey, Robert L.

Enzyme preparations obtained from the mycelium of Aspergillus species broke down methionine by co-dissimilation. The deaminase and demethiolase activities of crude extracts were increased 100-fold by...

The RIM101/pacC Homologue from the Basidiomycete Ustilago maydis Is Functional in Multiple pH-Sensitive Phenomena

Aréchiga-Carvajal, Elva T., Ruiz-Herrera, José

A homologue of the gene encoding the transcription factor Rim101 (PacC), involved in pH signal transduction in fungi, was identified in the pathogenic basidiomycete Ustilago maydis. The gene (RIM101)...

Genomic Analysis of the Basal Lineage Fungus Rhizopus oryzae Reveals a Whole-Genome Duplication

Ma, Li-Jun, Ibrahim, Ashraf S., Skory, Christopher, Grabherr, Manfred G., Burger, Gertraud, Butler, Margi, ...

Rhizopus oryzae is the primary cause of mucormycosis, an emerging, life-threatening infection characterized by rapid angioinvasive growth with an overall mortality rate that exceeds 50%. As a...