Abstract
Diseases caused by Staphylococcus warneri have a significant impact on human health. We evaluated the antibacterial activity of silver nanoparticles (synthesized using the endophytic strain SYSU 333150) against S. warneri. The strain SYSU 333150 was isolated from the roots of Borszczowia aralocaspica Bunge. The 16S rRNA sequence results suggest that SYSU 333150 belongs to the genus Isoptericola and is likely a new species. Photo-irradiation was used to synthesize silver nanoparticles, which were characterized using UV-visible spectroscopy, transmission electron microscopy and X-ray diffraction. The nanoparticles were spherical and measured to be11 to 40 nm. X-ray diffraction revealed four peaks corresponding to the 111, 200, 220, and 311 planes of the face-centered cubic lattice, indicating a crystalline nature. Fourier transform infrared spectroscopy suggested that the metabolites in the culture supernatant were likely reducing and capping agents. The silver nanoparticles possessed antimicrobial activity (14 mm zone of inhibition) against S. warneri, which was likely a result of DNA cleavage. The synthesized silver nanoparticles have potent antibacterial activity against S. warneri and can be used to control infection.
Highlights
Staphylococcus warneri is a Gram-positive clinically important pathogen that is found on human and animal skin
The present study explored the synthesis of silver nanoparticles using bacteria isolated from the Borszczowia aralocaspica Bunge plant and evaluated its antibacterial activity against S. warneri
Our results showed that strain SYSU 333150 shared 98.6% similarity with Isoptericola dokdonensis
Summary
Staphylococcus warneri is a Gram-positive clinically important pathogen that is found on human and animal skin. Silver nanoparticles have received interest because of their unique properties, including chemical stability, good conductivity and catalytic capabilities that can be incorporated into composite fibers, cryogenic superconducting materials, cosmetic products, and electronic components (Ahmed et al, 2016). They possess antimicrobial properties, which are extensively used to prepare medicine, devices, implants, and dressing materials (Manikprabhu and Lingappa, 2014; Rajesh Kumar et al, 2016)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
