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Thomas Warwick Ledger Hermosilla

Associate Professor

UNIVERSIDAD ADOLFO IBÁÑEZ

Santiago, Chile

EVOLUTIONARY MICROBIOLOGY; MOLECULAR GENETICS; MICROBIAL MUTUALISTIC AND SYMBIOTIC INTERACTIONS; ENVIRONMENTAL MICROBIOLOGY

Biological Sciences, Genetics and Microbiology, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2008
Biochemist, UNIVERSIDAD DE CHILE. Chile, 2003
Biochemistry, UNIVERSIDAD DE CHILE. Chile, 2000

Post Doctoral Researcher Full Time

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE

Facultad de Ciencias Biológicas

Santiago, Chile

2008 - 2009
Post Doctoral Researcher Full Time

UNIVERSIDAD ADOLFO IBANEZ

Facultad de Ingeniería y Ciencias

Santiago, Chile

2009 - 2010
Assistant Professor Full Time

UNIVERSIDAD ADOLFO IBANEZ

Facultad de Ingeniería y Ciencias

Santiago, Chile

2010 - 2017
Associate Professor Full Time

UNIVERSIDAD ADOLFO IBÁÑEZ

Facultad de Ingeniería y Ciencias

Santiago, Chile

2017 - A la fecha
Profesor Part Time

UNIVERSIDAD SANTO TOMÁS

Facultad de Biología

Santiago, Chile

2007 - 2009

Professional Practice Other

Universidad de Chile

Santiago, Chile

1999 - 1999

In the last three years, I have directed 4 professional practices of engineering students specialized in bioengineering, 4 Master Theses in Biotechnology and Bioengineering. I have advised several biochemistry students in research seminars, and given general advisory for doctoral students in the bioengineering laboratory. Currently, I have sponsored 1 postdoctoral research work financed by Conicyt (finalized in 2016).

Teaching activities have involved 4 undergraduate courses a year for Bioengineering students, and a yearly participation in 2 postgraduate courses (Programa de Doctorado en Ingeniería de Sistemas Complejos, Universidad Adolfo Ibáñez). Seminars and short presentations for University and High School students have been carried out 4-5 times a year.

Dissemination activities have included public and/or University conferences once a year. Technology transfer activities have been carried out in the form of applied projects for biostimulation and biofertilization of agricultural crops.

Award for an Original Invention intended for a Patent Application

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE

Chile, 2009

Award Granted by OTRI Chile S. A., P. Universidad Católica de Chile.


The Arabidopsis holobiont: a (re)source of insights to understand the amazing world of plant-microbe interactions Poupin, M. J. Article ISI SCOPUS Environmental Microbiome (2023)
Lac Operon Boolean Models: Dynamical Robustness and Alternative Improvements Ledger, Thomas; Ruz, Gonzalo Article WOS Mathematics (2021)
The microbial community from the early-plant colonizer (Baccharis linearis) is required for plant establishment on copper mine tailings Gazitua M.C.; Ledger, Thomas; Ginocchio, Rosanna Article SCIENTIFIC REPORTS (2021)
Exploring the evolution of multicellularity in Saccharomyces cerevisiae under bacteria environment: An experimental phylogenetics approach Quintero-Galvis, Julian F.; Paleo-López, Rocío; Solano-Iguaran, Jaiber J.; Ledger, Thomas; Anto?, Andrzej; Travisano, Michael; Nespolo, Roberto F. Article ISI SCOPUS Ecology and Evolution (2018)
Inferring bistable lac operen Boolean regulatory networks using evolutionary computation Ruz G.A.; Ashlock D. Article SCOPUS 2017 IEEE Conference on Computational Intelligence in Bioinformatics and Computational Biology, CIBCB 2017 (2017)
Burkholderia phytofirmans PsJN induces long-term metabolic and transcriptional changes involved in Arabidopsis thaliana salt tolerance Pinedo I.; Ledger T.; Greve M.; Poupin M.J. Article ISI SCOPUS Frontiers in Plant Science (2015)
Quorum Sensing and Indole-3-Acetic Acid Degradation Play a Role in Colonization and Plant Growth Promotion of Arabidopsis thaliana by Burkholderia phytofirmans PsJN Zuniga A.; Poupin M.J.; Donoso R.; Ledger T.; Guiliani N.; GonzÃ¡lez B. Article ISI SCOPUS MOLECULAR PLANT-MICROBE INTERACTIONS (2013)
Simultaneous assessment of the effects of an herbicide on the triad: rhizobacterial community, an herbicide degrading soil bacterium and their plant host Kraiser T.; Stuardo, M.; Manzano M.; Ledger T.; GonzÃ¡lez B. Article ISI SCOPUS Plant and Soil (2013)
Aromatic compounds degradation plays a role in colonization of Arabidopsis thaliana and Acacia caven by Cupriavidus pinatubonensis JMP134 Ledger T.; Zuniga A.; Kraiser T.; Dasencich P.; Donoso R.; Perez-Pantoja, D; GonzÃ¡lez B. Article ISI SCOPUS ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY (2012)
IncP-1 epsilon plasmids are important vectors of antibiotic resistance genes in agricultural systems: diversification driven by class 1 integron gene cassettes Heuer H.; Binh C.T.T.; Jechalke S.; Kopmann C.; Zimmerling U.; Krogerrecklenfort E.; Ledger T.; GonzÃ¡lez B.; Top E.; Smalla K. Article ISI SCOPUS Frontiers in Microbiology (2012)
The Complete Multipartite Genome Sequence of Cupriavidus necator JMP134, a Versatile Pollutant Degrader Lykidis, A; Perez-Pantoja, D; Ledger T.; Mavromatis, K; Anderson, IJ; Ivanova, NN; Hooper, SD; Lapidus, A.; Lucas, S; GonzÃ¡lez B.; et al. Article ISI SCOPUS PLOS ONE (2010)
3-Chlorobenzoate is taken up by a chromosomally encoded transport system in Cupriavidus necator JMP134 Ledger T.; Aceituno, F.; GonzÃ¡lez B. Article ISI SCOPUS MICROBIOLOGY-SGM (2009)
Chlorophenol hydroxylases encoded by plasmid pJP4 differentially contribute to chlorophenoxy acetic acid degradation Ledger T.; Pieper DH; GonzÃ¡lez B. Article ISI SCOPUS APPLIED AND ENVIRONMENTAL MICROBIOLOGY (2006)
Genetic organization of the catabolic plasmid pJP4 from Ralstonia eutropha JMP134 (pJP4) reveals mechanisms of adaptation to chloroaromatic pollutants and evolution of specialized chloroaromatic degradation pathways Trefault N.; De La Iglesia R.; Molina A.M.; Manzano M.; Ledger T.; Perez-Pantoja, D; Stuardo, M.; GonzÃ¡lez B. Article ISI ENVIRONMENTAL MICROBIOLOGY (2004)
Efficient turnover of chlorocatechols is essential for growth of Ralstonia eutropha JMP134(pJP4) in 3-chlorobenzoic acid Perez-Pantoja, D; Ledger T.; Pieper DH; GonzÃ¡lez B. Article ISI SCOPUS JOURNAL OF BACTERIOLOGY (2003)
Novel insights into the interplay between peripheral reactions encoded by xyl genes and the chlorocatechol pathway encoded by tfd genes for the degradation of chlorobenzoates by Ralstonia eutropha JMP134 Ledger T.; Pieper DH; Perez-Pantoja, D; GonzÃ¡lez B. Article ISI MICROBIOLOGY-SGM (2002)


Burkholderia phytofirmans PsJN regulates Arabidopsis growth through a signaling mechanism dependent of auxin and ethylene Greve, Macarena; Carmona, Vicente ConferencePoster (2016)
Experimental phylogenies using yeasts: the role of bacterial environment on performance and morphology in experimental diversification Quintero Galvis, Julián; Paleo López, R; Solano Iguarán, J; Gaitan Espitia, JD; Travisano, Mike ConferencePoster (2016)
Exploring the microbiota associated to euhalophytes of the Salicornoideae family Mora Ruiz, Merit; Alexandre, Carlota; Roselló Mora, Ramón ConferencePoster (2016)
Phytostimulation of drought stressed Arabidopsis by B. phytofirmans PsJN results from an interplay among contact-dependent induction of stress tolerance and volatile-‐‑mediated plant growth promotion Tamayo, Javier; Rojas, Sandy ConferencePoster (2016)
Arabidopsis thaliana growth and salinity tolerance induction by Burkholderia phytofirmans PsJN: Specific plant responses to bacterial emission of a blend of volatile signals Rojas, Sandy; Tamayo, Javier ConferencePoster (2015)
Burkholderia phytofirmans PsJN primes Arabidopsis thaliana plants to enhance salt-‐‑stress tolerance Greve, Macarena ConferencePoster (2015)
Increased tolerance to drought in Arabidopsis thaliana inoculated with Burkholderia phytofirmans PsJN: differential effects of colonization and the emission of volatile compounds. Tamayo, Javier; Rojas, Sandy ConferencePoster (2015)


PGPR Compositions and Methods for Cultivation of Tomato and Potato Species Patent


Papel de los factores sigma de función extracitoplasmática de la bacteria promotora del crecimiento Burkholderia phytofirmans PsJN en la colonización rizosférica y endofítica de plantas Ledger, Thomas (Sponsor) Proyecto (2014)
Influence of plant derived phenolic compounds on the ability of mutualistic proteobacteria to promote plant growth. Ledger, Thomas Proyecto (2012)
"Fortalecimiento de la investigación y la docencia en Ciencias Biológicas mediante la inserción de investigadores postdoctorales en áreas relevantes de la Bioingeniería". Poupin, María J.; Stuardo, M.; Ledger T.; GonzÃ¡lez B. Proyecto (2009)
Effect of Burkholderia phytofirmans PsJN colonization on plant growth and resistance to abiotic stress. Ledger, Thomas Proyecto (2008)
Centro de Ecología Aplicada y Sustentabilidad (CAPES) Proyecto (0)