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Article

Transcriptomic Insights into Benzenamine Effects on the Development, Aflatoxin Biosynthesis, and Virulence of Aspergillus flavus

State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
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Received: 28 December 2018 / Revised: 24 January 2019 / Accepted: 25 January 2019 / Published: 27 January 2019
Aspergillus flavus is a soilborne pathogenic fungus that poses a serious public health threat due to it contamination of food with carcinogenic aflatoxins. Our previous studies have demonstrated that benzenamine displayed strong inhibitory effects on the mycelial growth of A. flavus. In this study, we systematically investigated the inhibitory effects of benzenamine on the development, aflatoxin biosynthesis, and virulence in A. flavus, as well as the underlying mechanism. The results indicated that benzenamine exhibited great capacity to combat A. flavus at a concentration of 100 µL/L, leading to significantly decreased aflatoxin accumulation and colonization capacity in maize. The transcriptional profile revealed that 3589 genes show altered mRNA levels in the A. flavus after treatment with benzenamine, including 1890 down-regulated and 1699 up-regulated genes. Most of the differentially expressed genes participated in the biosynthesis and metabolism of amino acid, purine metabolism, and protein processing in endoplasmic reticulum. Additionally, the results brought us to a suggestion that benzenamine affects the development, aflatoxin biosynthesis, and pathogenicity of A. flavus via down-regulating related genes by depressing the expression of the global regulatory factor leaA. Overall, this study indicates that benzenamine have tremendous potential to act as a fumigant against pathogenic A. flavus. Furthermore, this work offers valuable information regarding the underlying antifungal mechanism of benzenamine against A. flavus at the level of transcription, and these potential targets may be conducive in developing new strategies for preventing aflatoxin contamination. View Full-Text
Keywords: Aspergillus flavus; aflatoxin B1; benzenamine; fumigation; transcriptome Aspergillus flavus; aflatoxin B1; benzenamine; fumigation; transcriptome
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MDPI and ACS Style

Yang, M.; Lu, L.; Li, S.; Zhang, J.; Li, Z.; Wu, S.; Guo, Q.; Liu, H.; Wang, C. Transcriptomic Insights into Benzenamine Effects on the Development, Aflatoxin Biosynthesis, and Virulence of Aspergillus flavus. Toxins 2019, 11, 70. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins11020070

AMA Style

Yang M, Lu L, Li S, Zhang J, Li Z, Wu S, Guo Q, Liu H, Wang C. Transcriptomic Insights into Benzenamine Effects on the Development, Aflatoxin Biosynthesis, and Virulence of Aspergillus flavus. Toxins. 2019; 11(2):70. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins11020070

Chicago/Turabian Style

Yang, Mingguan, Laifeng Lu, Shuhua Li, Jing Zhang, Zhenjing Li, Shufen Wu, Qingbin Guo, Huanhuan Liu, and Changlu Wang. 2019. "Transcriptomic Insights into Benzenamine Effects on the Development, Aflatoxin Biosynthesis, and Virulence of Aspergillus flavus" Toxins 11, no. 2: 70. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins11020070

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