Silver oxide nanostructures as a new trend to control strawberry charcoal rot induced by Macrophomina phaseolina.

Autor: Derbalah A; Pesticides Chemistry and Toxicology Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt., Essa T; Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt., Kamel SM; Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt., Omara RI; Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt., Abdelfatah M; Physics Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt., Elshaer A; Physics Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt., Elsharkawy MM; Agricultural Botany Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2022 Nov; Vol. 78 (11), pp. 4638-4648. Date of Electronic Publication: 2022 Aug 05.
DOI: 10.1002/ps.7084
Abstrakt: Background: Silver oxide (Ag 2 O) nanostructures were fabricated and their ability to induce antifungal activity against Macrophomina phaseolina, which causes charcoal rot disease in strawberries, was evaluated under laboratory, greenhouse and field conditions. A real-time quantitative polymerase chain reaction was used to monitor expression of defense-related genes, which is essential to evaluate the potential of the manufactured nanoparticles to promote strawberry resistance against charcoal rot. The effect of Ag 2 O nanoparticles on growth characteristics in strawberry plants was also studied.
Results: The results showed that Ag 2 O significantly inhibited M. phaseolina growth compared with untreated controls under in vitro conditions. Strawberry plants treated with Ag 2 O showed a significant decrease in the severity of charcoal rot disease in the greenhouse compared with untreated plants. Strawberry plants treated with Ag 2 O nanoparticles expressed defense gene (PR-1) involved in the salicylic acid signaling pathways at levels three to five times higher than in the control group. Ag 2 O nanoparticles significantly improved the growth and yield of the strawberry crop.
Conclusion: Use of Ag 2 O nanoparticles can be considered a new strategy to control M. phaseolina and this is the first report of this effect. © 2022 Society of Chemical Industry.
(© 2022 Society of Chemical Industry.)
Databáze: MEDLINE
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