Ricardo V. Ullán

The global regulator LaeA controls penicillin biosynthesis, pigmentation and sporulation, but not roquefortine C synthesis in Penicillium chrysogenum

Katarína Kosalková, Carlos García‐Estrada, Ricardo V. Ullán et al. · Biochimie · 2008 · 169 citations

Biosynthesis, Engineering, Biochemistry +7

A Single Cluster of Coregulated Genes Encodes the Biosynthesis of the Mycotoxins Roquefortine C and Meleagrin in Penicillium chrysogenum

Carlos García‐Estrada, Ricardo V. Ullán, Silvia M. Albillos et al. · Chemistry & Biology · 2011 · 112 citations

Biology, Biosynthesis, Genetics +7

RNA-silencing in Penicillium chrysogenum and Acremonium chrysogenum: Validation studies using β-lactam genes expression

Ricardo V. Ullán, Ramiro P. Godio, Fernando Teijeira et al. · Journal of Microbiological Methods · 2008 · 84 citations

Penicillium Chrysogenum, Biotechnology, Molecular Biology +7

The cefT gene of Acremonium chrysogenum C10 encodes a putative multidrug efflux pump protein that significantly increases cephalosporin C production

Ricardo V. Ullán, G. Liu, Javier Casqueiro et al. · Molecular Genetics and Genomics · 2002 · 82 citations

Biosynthesis, Engineering, Natural Sciences +10

A Novel Epimerization System in Fungal Secondary Metabolism Involved in the Conversion of Isopenicillin N into Penicillin N inAcremonium chrysogenum

Ricardo V. Ullán, Javier Casqueiro, Óscar Bañuelos et al. · Journal of Biological Chemistry · 2002 · 80 citations · Full text