https://www.selleckchem.com/products/ym201636.html Serratia marcescens NJ01, a Gram-negative bacterium, can infect tomato leaves and cause chlorosis and wilting. The present study evaluated the quorum sensing (QS) and biofilm inhibitory effects of seven carboline compounds against S. marcescens NJ01 at 20 μg ml-1, and subsequently focused the study on norharmane as this had the best inhibitory activity. Quantitative real-time polymerase chain reaction (qRT-PCR) analysis confirmed the down-regulation of QS and biofilm related genes bsmA, bsmB, fimA, fimC, flhD, pigA, pigC and shlA on exposure to norharmane. Fourier-Transform Infrared Spectroscopy (FT-IR) analysis showed a reduction in the major components of the exopolysaccharide (EPS) matrix such as nucleic acids, proteins and fatty acids, which are involved in forming the tertiary structure of biofilms. Norharmane exposure also enhanced the susceptibility of the biofilm to ofloxacin. Hence, norharmane has the potential for use as an antibiotic adjuvant to enhance the efficacy of conventional antibiotics to reduce pathogenic bacterial infections. How people adjust their goals is central to adaptation across the lifespan. However, little is known about individual difference characteristics that predict how and why people use different self-regulatory strategies. The present study investigated associations of perceived age-related gains and losses, and their interaction, as predictors of goal adjustment in older adulthood. Furthermore, we examined whether future time perspective (FTP) mediated relationships between awareness of age-related change (AARC) and goal adjustment. A community-based sample of 408 adults (aged 60-88 years) was recruited via an internet-based research platform. Participants completed questionnaire measures of AARC, FTP, goal disengagement, and goal re-engagement. A flexibility index reflecting tendencies toward use of both goal disengagement and goal re-engagement strategies was also analyzed.