Pseudomonas aeruginosa ATCC 9027 is a non-virulent strain suitable for mono-rhamnolipids production


Por: Grosso-Becerra, Maria-Victoria, Gonzalez-Valdez, Abigail, Granados-Martinez, Maria-Jessica, Morales, Estefania, Servin-Gonzalez, Luis, Mendez, Jose-Luis, Delgado, Gabriela, Morales-Espinosa, Rosario, Ponce-Soto, Gabriel-Yaxal, Cocotl-Yanez, Miguel, Soberon-Chavez, Gloria

Publicada: 1 dic 2016
Resumen:
Rhamnolipids produced by Pseudomonas aeruginosa are biosurfactants with a high biotechnological potential, but their extensive commercialization is limited by the potential virulence of P. aeruginosa and by restrictions in producing these surfactants in heterologous hosts. In this work, we report the characterization of P. aeruginosa strain ATCC 9027 in terms of its genome-sequence, virulence, antibiotic resistance, and its ability to produce mono-rhamnolipids when carrying plasmids with different cloned genes from the type strain PAO1. The genes that were expressed from the plasmids are those coding for enzymes involved in the synthesis of this biosurfactant (rhlA and rhlB), as well as the gene that codes for the RhlR transcriptional regulator. We confirm that strain ATCC 9027 forms part of the PA7 clade, but contrary to strain PA7, it is sensitive to antibiotics and is completely avirulent in a mouse model. We also report that strain ATCC 9027 mono-rhamnolipid synthesis is limited by the expression of the rhlAB-R operon. Thus, this strain carrying the rhlAB-R operon produces similar rhamnolipids levels as PAO1 strain. We determined that strain ATCC 9027 with rhlAB-R operon was not virulent to mice. These results show that strain ATCC 9027, expressing PAO1 rhlAB-R operon, has a high biotechnological potential for industrial mono-rhamnolipid production.

Filiaciones:
Grosso-Becerra, Maria-Victoria:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Gonzalez-Valdez, Abigail:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Granados-Martinez, Maria-Jessica:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Morales, Estefania:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Servin-Gonzalez, Luis:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Mendez, Jose-Luis:
 Univ Nacl Autonoma Mexico, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ, Mexico City 04510, DF, Mexico

Delgado, Gabriela:
 Univ Nacl Autonoma Mexico, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ, Mexico City 04510, DF, Mexico

Morales-Espinosa, Rosario:
 Univ Nacl Autonoma Mexico, Fac Med, Dept Microbiol & Parasitol, Ciudad Univ, Mexico City 04510, DF, Mexico

Ponce-Soto, Gabriel-Yaxal:
 Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Evolut, Ciudad Univ, Mexico City 04510, DF, Mexico

Cocotl-Yanez, Miguel:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico

Soberon-Chavez, Gloria:
 Univ Nacl Autonoma Mexico, Inst Invest Biomed, Dept Biol Mol & Biotecnol, Ciudad Univ,Apartado Postal 70228, Mexico City 04510, DF, Mexico
ISSN: 01757598
Editorial
SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, Estados Unidos America
Tipo de documento: Article
Volumen: 100 Número: 23
Páginas: 9995-10004
WOS Id: 000387656500016
ID de PubMed: 27566690

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