2020
DOI: 10.3389/fmicb.2020.00142
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High Efficacy of the Volatile Organic Compounds of Streptomyces yanglinensis 3-10 in Suppression of Aspergillus Contamination on Peanut Kernels

Abstract: Aspergillus flavus and Aspergillus parasiticus are saprophytic fungi which can infect and contaminate preharvest and postharvest food/feed with production of aflatoxins (B 1 , B 2 , and G). They are also an opportunistic pathogen causing aspergillosis diseases of animals and humans. In this study, the volatile organic compounds (VOCs) from Streptomyces yanglinensis 3-10 were found to be able to inhibit mycelial growth, sporulation, conidial germination, and expression of aflatoxin biosynthesis genes in A. flav… Show more

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Cited by 62 publications
(48 citation statements)
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“…Another detected compound was phenylethyl alcohol ( Table 1 ), an aromatic alcohol produced by some Streptomyces spp. [ 18 , 63 , 64 , 125 ] and by plants such as rose [ 65 ]. It has been shown to function as an insect repellent against Rhodnius prolixus (Family: Reduviidae) and Triatoma infestans (kissing bug), both of which are vectors of the Chagas disease parasite [ 77 ].…”
Section: Resultsmentioning
confidence: 99%
“…Another detected compound was phenylethyl alcohol ( Table 1 ), an aromatic alcohol produced by some Streptomyces spp. [ 18 , 63 , 64 , 125 ] and by plants such as rose [ 65 ]. It has been shown to function as an insect repellent against Rhodnius prolixus (Family: Reduviidae) and Triatoma infestans (kissing bug), both of which are vectors of the Chagas disease parasite [ 77 ].…”
Section: Resultsmentioning
confidence: 99%
“…In groundnut, rice, maize, and soybean with high water activity, A. flavus infection and AFs contamination were entirely inhibited by Enterobacter asburiae Vt-7 volatile organic compounds (phenyl ethyl alcohol and 1-pentanol) [ 85 ]. In Vitro, volatile organic carbons from Streptomyces yanglinensis 3-10 inhibited growth, conidial germination, asexual sporulation, and expression of AFB1 biosynthesis cluster genes in A. flavus and A. parasiticus , and, in vivo, reduced the disease symptoms on peanut kernels [ 86 ]. The volatile organic carbons suppressed the mycelial growth of more than 15 plant pathogenic fungi and an oomycete organism.…”
Section: Post-harvest Management Of Aflatoxin Contaminationmentioning
confidence: 99%
“…Chemicals, including 2-phenyl ethanol, methyl 2-methyl butyrate, and β-caryophyllene, showed activity against A. flavus and A. parasiticus . Therefore, S. yanglinensis 3-10 may become a promising biofumigant in the control A. flavus and A. parasiticus [ 86 ].…”
Section: Post-harvest Management Of Aflatoxin Contaminationmentioning
confidence: 99%
“…VOCs produced by Streptomyces spp. inhibited the production of aflatoxins from the fungal pathogen Aspergillus flavus , through the downregulation of several genes involved in aflatoxin biosynthesis (Yang et al ., 2019; Lyu et al ., Lyu2020). Exposure of Sclerotinia sclerotiorum to VOCs produced by Trichoderma species led to the upregulation of four glutathione S‐transferase genes, which are involved in the detoxification of antifungal secondary metabolites, which may contribute to the virulence of Sclerotinia sclerotiorum (Ojaghian et al ., 2019).…”
Section: Role Of Volatiles In the Suppression Of Plant Pathogensmentioning
confidence: 99%
“…Moreover, whilst many studies demonstrate VOCs have suppressive effects on plant pathogens, it is important to determine the effect of these inhibitory VOCs on plant development. For example, inhibitory mVOCs produced by Streptomyces yanglinensis 3–10 against Aspergillus were tested to determine their effects on plant development and showed that VOCs did not inhibit peanut seedling germination, suggesting promise for use under field conditions (Lyu et al ., 2020). The modes of action of VOCs in the suppression of target pathogens (Dalilla et al ., 2015; Cho et al ., 2017; Tahir et al ., 2017a; Xie et al ., 2018; Yang et al ., 2019; Ojaghian et al ., 2019), enhanced disease resistance of plants (Ryu et al ., 2004; Lee et al ., 2012; Song and Ryu, 2013; Tahir et al ., 2017a; Tahir et al ., 2017b; Song et al ., 2019b; Tyagi et al ., 2020) and plant growth promotion (Ryu et al ., 2003; Garnica‐Vergara et al ., 2016; Lee et al ., 2019; Tyagi et al ., 2019) are receiving increasing attention, future research priority should focus on understanding the mode of action of biologically active VOCs on target plants and pathogens.…”
Section: Conclusion and Future Outlookmentioning
confidence: 99%