期刊
ACS APPLIED BIO MATERIALS
卷 2, 期 11, 页码 4978-4985出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsabm.9b00699
关键词
nanomaterials; antifungal activity; watermelon; Fusarium oxysporum f. sp. niveum; silver nanoparticles; nanoscale silica platelets
资金
- Ministry of Science and Technology, Taiwan (Republic of China) [MOST 107-2311-B-020-001-, 107-2313-B-005014]
- Ministry of Economic Affair, Taiwan (Republic of China) [102-EC-17-A21-S1-229, 101-EC-17-A-21-S1-229]
- Innovation and Development Center of Sustainable Agriculture from The Featured Areas Research Center Program
Nanotechnology has attracted much attention recently because of its agricultural applications. In this study, we analyzed the ability of two potential nanomaterials (NMs), nanoscale silica platelets (NSP) and silver nanoparticles on nanoscale silica platelets (AgNP/NSP), to control Fusarium wilt [caused by Fusarium oxysporum f. sp. niveum (Fon)] disease in watermelon. Both AgNP/NSP and NSP significantly reduced Fon mycelial growth and spore viability. In addition, AgNP/NSP decreased the mycelium viability at concentrations of 150 and 200 ppm. Scanning and transmission electron microscopy showed significant morphological effects on Fon cells, such as increased roughness and interior hollowing after AgNP/NSP and NSP treatments. Further, fluorescence staining experiments showed that a concomitant increase in membrane permeability occurred after treatment with NMs. The biochemical effects of NM treatment included a significant reduction in secreted cellulase activity. Interestingly, the addition of cysteine as a reducing agent decreased effects of NSP on Fon spores, suggesting suppression of Fon spore development attributable to oxidative stress. Taken together, these results indicate that AgNP/NSP and NSP may potentially serve as nanofungicides for future control of Fusarium wilt and other fungal diseases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据