Euro-Global Conference on Biotechnology and Bioengineering

September 06-08, 2021 | Online Event

September 06-08, 2021 | Online Event
ECBB 2021

Carla CCR de Carvalho

Speaker at Biotechnology and Bioengineering 2021 - Carla CCR de Carvalho
Instituto Superior T├ęcnico, Portugal
Title : Improving bioprocesses by using adaptation strategies of Rhodococcus

Abstract:

Rhodococcus are characteristic of the taxon mycolata which includes the genera Mycobacterium and Nocardia. These cells have a cell envelope characterized by the presence of long chain a-alkyl-b-hydroxy fatty acids, called mycolic acids. These lipids increase the tolerance of Rhodococcus cells to the presence of toxic compounds and challenging environmental conditions [1]. These cells are also able to modulate the composition of the fatty acids of the phospholipids of the cellular membrane as response to stressful conditions [2] and to produce specialized lipids [3]. R. erythropolis may be adapted to survive high osmotic stress and conditions that are usually considered extreme [2, 4]. Additionally, Rhodococcus cells contain efflux systems able to extrude toxic compounds [5]. These features, together with the large set of enzymes that Rhodococcus cells contain, make the cells very interesting for biocatalysis and bioremediation processes [6, 7]. Furthermore, the cells may survive when placed at ?16ºC and at 100ºC for up to 15 min by adjusting the fluidity of the cellular membrane. These properties may be used to improve bioprocesses using toxic compounds such as the bioremediation of petroleum hydrocarbons under saline conditions. In this presentation, several adaptive mechanisms of Rhodococcus cells, and how they may be exploited to improve biotechnological processes, will be discussed.

References: 1CCCR de Carvalho, et al (2016) AMB Express 6, 66; 2CCCR de Carvalho (2012) Res Microbiol 163, 125-136. 3MALRM Cortes, CCCR de Carvalho (2015) Biochem Eng J 94, 100-105. 4 CCCR de Carvalho, et al (2014) Appl Microbiol Biotechnol 98, 5599-5606. 5CCCR de Carvalho, et al (2014) Frontiers Physiol 5, 133. 6 CJC Rodrigues, CCCR de Carvalho (2019) Biotechnol J 14, 1800598. 7CCCR de Carvalho, MMR da Fonseca (2005) Appl Microbiol Biotechnol 67, 715-726.

Biography:

Carla C.C.R. de Carvalho graduated in Chemical Engineering in 1998 and did a Master in Biotechnology (Biochemical Engineering) in 1999 at Instituto Superior Técnico (IST), Universidade Técnica de Lisboa (UTL). She completed a PhD in Biotechnology at UTL in 2003. She was awarded 2 Post-doctoral grants (2004-2006, IST-UTL; 2007-Feb 2008, IST-UTL and UFZ, Leipzig, Germany). In 2008, she was awarded a FCT ‘Ciencia2007’ 5-year contract and in 2014 she received a ‘FCT Investigator 2013’ 5-year contract as Principal Investigator. Since 2019, she is Assistant Professor at IST, Universidade de Lisboa. She published ca. 90 research papers in international peer reviewed journals and wrote 13 book chapters.

Watsapp