Evaluation of the production potential of quorum quenchig enzymes of extremophile bacteria from Antarctica (#1219)
Read ArticleDate of Conference
July 19-21, 2023
Published In
"Leadership in Education and Innovation in Engineering in the Framework of Global Transformations: Integration and Alliances for Integral Development"
Location of Conference
Buenos Aires
Authors
Rubiano Labrador, Carolina
Rebollo Perez, Juan
Díaz Mendoza, Claudia
Revollo, Cristina Isabella
Vega, Henry De Jesus
Ortega, Maria De Los Angeles
De la parra-Guerra, Ana C.
Abstract
Cell-cell communication mediated by the production of N-acylhomoserine lactone is one of the causes of the production of virulence factors in pathogens and biofouling. Although quorum-quenching is a useful method to disrupt quorum sensing signals, different QQ enzymes are required to block bacterial communication in specific environments. The aim of this study was to determine the QQ enzyme production potential of psychrophilic bacteria isolated from Antarctic marine sediments. This study was divided into three phases: (i) semi-qualitative evaluation of lipolytic activity, (ii) evaluation of resistance to β-lactam antibiotics, and (iii) evaluation of β-lactamase activity. In this study, the bacterial strains evaluated presented lipolytic activity and resistance to β-lactam antibiotics (ampicillin and penicillin). In addition, the strains UTB 167 and UTB 170, related to the genus Psychrobacter, presented β-lactamase activity (1.7 - 3.9 Umol/L), which indicates that their potential to produce QQ enzymes related to the metallo-β-lactamases superfamily.