Journal
FOOD CONTROL
Volume 106, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2019.106748
Keywords
Selenium nanoparticle; Trichoderma harzianum; Biocontrol functionalities; Recognition metabolites; Phytopathogens; Mycotoxins
Categories
Funding
- National Key Research and Development Program, China [2017YFC1600304]
- NSFC [31772087, 31701721, 31601575]
- MOST [2016YFE0112900, 201513006-02-3]
- Chinese Academy of Sciences [ZDRW-ZS-2017-1]
- Shanghai Municipal for Science and Technology, China [17391901300]
- Xinjiang Academy of Agricultural Sciences, China [xjzdy-001]
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Selenium nanoparticles (SNP) were generally utilized as chemotherapeutic agents and environmental ameliorants, but without simultaneous biocontrol functionalities against fungal pathogens and mycotoxins, plus unknown recognition mechanism. Selenium nanoparticles derived from Trichoderma harzianum JF309 (TSNP) were herein synthesized, contrast to traditional SNP, where diverse metabolites co-occurred in TSNP including organic acids and their derivates, such as psoromic acid, beta-decyloxybenzoic acid, glucaric acid lactone, etc., revealed by Triple TOF UPLC/HRMS. As hypothesized, this interaction of diverse recognition metabolites and selenium nanoparticles in TSNP might change the arrangement and movement of original state, form random, nondirective to regulated, directional, thus contributing to better antifungal effects and dramatically increasing control functionalities against Alternaria toxins (83% of TeA and 79% of AOH reduction), fumonisin B1 (63% of FB1 reduction) and deoxynivalenol (76% of DON reduction), respectively. Meanwhile, expression of key bio-synthetic genes of FUM1, PA, TRI5 and TRI6 were substantially decreased. Finally, as convinced, the obtained nanoparticles had no significant side effects to the selected three human cells. In total, the achieved data supports the biogenic nanoparticles as valuable functional materials with great potential for practical plant protection and food safety prevention.
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