Effect of oligochitosan-coated silver nanoparticles (OCAgNPs) on the growth and reproduction of three species Phytophthora in vitro. (3rd April 2018)

• Record Type: Journal Article
• Authors: Nguyen, Vinh Truong; Tran, Khanh Van Quang; Tran, Quyen Ngoc
• Is Part Of: Archives of phytopathology and plant protection. Volume 51:Number 5/6(2018)
• Page Start: 227
• Page End: 240
• Publication Date: 2018-04-03
• Subjects: Antifungal activity -- silver nanoparticles -- P. capsici -- P. nicotianae -- P. colocasiae; Plants, Protection of -- Periodicals; Plant diseases -- Periodicals; 632
• DOI: 10.1080/03235408.2018.1458394
• Languages: English
• ISSNs: 0323-5408

Abstract

Abstract: Phytophthora diseases cause billions of dollars annually in damage to crops. Nanotechnology provides various metallic nanoparticles exhibiting a strong activity against microbial pathogens. Silver nanoparticles-based products are outstanding samples, which has been produced in large scale and performed well with a high activity against several fungal pathogens. Our previous study indicated oligochitosan-coated silver nanoparticles (OCAgNPs) which were prepared from 3, 4 dihydroxyphenyl acetic acid – conjugated oligochitosan and silver nitrate salt performed an enhancement in antibacterial ability at a very low concentration. Objective of this study was to determine the effect of the OCAgNPs on growth and reproduction of Phytophthora capsici, P. nicotianae and P. colocasiae in vitro . The study shown that strong inhibition of mycelial growth, sporangium production, zoospore release and zoospore germination of P. capsici, P. nicotianae and P. colocasiae occurred when exposed to at 9 ppm of OCAgNP. The results demonstrated a great potential of OCAgNPs for controlling growth of Phytophthora .