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- Title
The silkworm (Bombyx mori) gut microbiota is involved in metabolic detoxification by glucosylation of plant toxins.
- Authors
Yuan, Shuangzhi; Sun, Yong; Chang, Wenqiang; Zhang, Jiaozhen; Sang, Jifa; Zhao, Jiachun; Song, Minghui; Qiao, Yanan; Zhang, Chunyang; Zhu, Mingzhu; Tang, Yajie; Lou, Hongxiang
- Abstract
Herbivores have evolved the ability to detoxify feed components through different mechanisms. The oligophagous silkworm feeds on Cudrania tricuspidata leaves (CTLs) instead of mulberry leaves for the purpose of producing special, high-quality silk. However, CTL-fed silkworms are found to have smaller bodies, slower growth and lower silk production than those fed mulberry leaves. Here, we show that the high content of prenylated isoflavones (PIFs) that occurred in CTLs is converted into glycosylated derivatives (GPIFs) in silkworm faeces through the silkworm gut microbiota, and this biotransformation is the key process in PIFs detoxification because GPIFs are found to be much less toxic, as revealed both in vitro and in vivo. Additionally, adding Bacillus subtilis as a probiotic to remodel the gut microbiota could beneficially promote silkworm growth and development. Consequently, this study provides meaningful guidance for silk production by improving the adaptability of CTL-fed silkworms. The silkworm (Bombyx mori) gut microbiome can impact its ability to metabolize and tolerate prenylated isoflavone toxins from plant leaves, providing further insight into how the gut microbiota promotes silkworm growth and development.
- Subjects
PLANT toxins; GUT microbiome; METABOLIC detoxification; SILKWORMS; SILK production; BACILLUS subtilis; TOXINS; PLANT metabolites
- Publication
Communications Biology, 2023, Vol 6, Issue 1, p1
- ISSN
2399-3642
- Publication type
Article
- DOI
10.1038/s42003-023-05150-0