Nowadays one of the most intractable worldwide health problems involves treating infections that are resistant to antibiotics. Resistant pathogens are able to cause high mortality and consequently impose huge healthcare costs (Carlet et al., 2011). Until recently, antibiotics were used only for treating human infections. Now, however, antibiotics are being extensively used in agriculture, food industries, or veterinary practices, causing a high impact on natural environments and consequently on human health (Radhouani et al., 2014). This situation of bacterial gene resistance created by widespread and imprudent use of antibiotics has triggered a more energetic search for alternative compounds with deleterious activities against microbial infectious diseases, as well as the identification of pathways or genes related to resistance to traditional antibiotics.