@article{oai:nagoya.repo.nii.ac.jp:00026379,
 author = {Maeda, Kazuyuki and Ichikawa, Hinayo and Nakajima, Yuichi and Motoyama, Takayuki and Ohsato, Shuichi and Kanamaru, Kyoko and Kobayashi, Tetsuo and Nishiuchi, Takumi and Osada, Hiroyuki and Kimura, Makoto},
 issue = {5},
 journal = {ACS Chemical Biology},
 month = {May},
 note = {From the RIKEN Natural Products Depository (NPDepo) chemical library, we identified small molecules that alter trichothecene 15-acetyldeoxynivalenol (15-ADON) production by Fusarium graminearum. Among trichothecene production activators, a furanocoumarin NPD12671 showed the strongest stimulatory activity on 15-ADON production by the fungus cultured in a 24-well plate. NPD12671 significantly increased the transcription of Tri6, a transcription factor gene necessary for trichothecene biosynthesis, in both trichothecene-inducing and noninducing culture conditions. Dihydroartemisinin (DHA) was identified as the most effective inhibitor of trichothecene production in 24-well plate culture; DHA inhibited trichothecene production (>50% inhibition at 1 μM) without affecting fungal mass by suppressing Tri6 expression. To determine the effect of DHA on trichothecene pathway Tri gene expression, we generated a constitutively Tri6-overexpressing strain that produced 15-ADON in YG_60 medium in Erlenmeyer flasks, conditions under which no trichothecenes are produced by the wild-type. While 5 μM DHA failed to inhibit trichothecene biosynthesis by the overexpressor in trichothecene-inducing YS_60 culture, trichothecene production was suppressed in the YG_60 culture. Regardless of a high Tri6 transcript level in the constitutive overexpressor, the YG_60 culture showed reduced accumulation of Tri5 and Tri4 mRNA upon treatment with 5 μM DHA. Deletion mutants of FgOs2 were also generated and examined; both NPD12671 and DHA modulated trichothecene production as they did in the wild-type strain. These results are discussed in light of the mode of actions of these chemicals on trichothecene biosynthesis., ファイル公開：2019-05-18},
 pages = {1260--1269},
 title = {Identification and Characterization of Small Molecule Compounds That Modulate Trichothecene Production by Fusarium graminearum},
 volume = {13},
 year = {2018}
}