Green Chemistry Letters and Reviews, Год журнала: 2025, Номер 18(1)
Опубликована: Апрель 13, 2025
Язык: Английский
Agronomy, Год журнала: 2025, Номер 15(2), С. 490 - 490
Опубликована: Фев. 18, 2025
Selenium nanoparticles (SeNPs) are currently receiving attention for controlling plant pathogenic microorganisms, expected to be especially effective against the genus Phytophthora, and show high anti-oomycete activity. SeNPs synthesized with extracts have shown low toxicity, bioavailability, mechanisms of action that alter cellular integrity damage key components phytopathogen metabolism, causing denaturation cell death. The aim this study was evaluate inhibitory activity on mycelial growth development reproductive structures in Phytophthora capsici vitro. Different concentrations (0 400 µg/mL) culture media were used analyze growth, sporangium formation, zoospores, germination germ tube. To explain changes morphology P. capsici, increased relative conductance activation glycerol synthesis related osmotic stress membrane permeability. In addition, inhibited production exopolysaccharides (EPSs), which compounds associated pathogen virulence. A lower accumulation its biomass evidences alterations oomycete growth. percentage inhibition higher SeNP incubation time, reaching 100% at 300 µg/mL. concentration-dependent reduction number spores, sporangia, zoospore observed. Concentrations 50 100 µg/mL reduced by 30%. increase levels indicated an osmoregulatory response SeNP-induced stress. Also, electrical conductivity suggested plasma damage, supports potential as antifungal agents inducing disruption structural capsici. These results provide new knowledge vitro mechanism offer a biological alternative control diseases caused oomycetes.
Язык: Английский
Процитировано
0
Green Chemistry Letters and Reviews, Год журнала: 2025, Номер 18(1)
Опубликована: Апрель 13, 2025
Язык: Английский
Процитировано
0