Midgut microbiota diversity of potato tuber moth associated with potato tissue consumed

作者：Yaqiang Zheng, Guanli Xiao, Wenwu Zhou, Yulin Gao, Li ZhengYue, Guangzu Du, Bin Chen · 发表于：BMC Microbiology · 年份：2020 · DOI：10.1186/s12866-020-01740-8 · 被引用次数：39 · 研究领域：Insect symbiosis and bacterial influences、Invertebrate Immune Response Mechanisms、Entomopathogenic Microorganisms in Pest Control

BACKGROUND: The potato tuber moth (PTM), Phthorimaea operculella (Zeller), is a worldwide pest that feeds on both the leaves and tubers of potato plants. PTM larvae can digest leaves, or tubers, resulting in serious damage to potato plants in the field and potato tubers in storage. To understand how midgut bacterial diversity is influenced by the consumption of these two tissue types, the symbiotic bacteria in the potato-feeding PTM midgut and the endophytic bacteria of potato tissues were analyzed. RESULTS: At the genus level, the bacterial community composition in the PTM midgut was influenced by the tissues consumed, owing to their different nutrient contents. Escherichia_Shigella and Enterobacter were the most dominant genera in the midgut of leaf-feeding and tuber-feeding PTMs, respectively. Interestingly, even though only present in low abundance in leaves and tubers, Escherichia_Shigella were dominantly distributed only in the midgut of leaf-feeding PTMs, indicating that specific accumulation of these genera have occurred by feeding on leaves. Moreover, Enterobacter, the most dominant genus in the midgut of tuber-feeding PTMs, was undetectable in all potato tissues, indicating it is gut-specific origin and tuber feeding-specific accumulation. Both Escherichia_Shigella and Enterobacter abundances were positively correlated with the dominant contents of potato leaves and tubers, respectively. CONCLUSIONS: Enrichment of specific PTM midgut bacterial communities was relate...