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Metabolome analysis of food-chain between plants and insects |
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| Authors: | Atsuko Miyagi Maki Kawai-Yamada Minori Uchimiya Noriyuki Ojima Koichi Suzuki Hirofumi Uchimiya |
| Institution: | 1. Institute for Environmental Science and Technology, Saitama University, 225 Shimo-Okubo, Sakura-Ku, Saitama-city, Saitama, 338-8570, Japan 2. Graduate School of Science and Engineering, Saitama University, 225 Shimo-Okubo, Sakura-Ku, Saitama-city, Saitama, 338-8570, Japan 3. USDA-ARS Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA, 70124, USA 4. Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan 5. Office of Research Exchange, Iwate University, Morioka, Iwate, 020-8550, Japan |
| Abstract: | Evolution has shown the co-dependency between host plants and predators (insects), especially inevitable dependency of predators on plant biomass for securing their energy sources. It was postulated that NAD+ source used for major energy producing pathway is the glycerol-3-phosphate shuttle in insects. Using high throughput metabolomics approach, we found that larva of leaf beetle (Gastrophysa atrocyanea), which feed oxalate-rich plants (Rumex obtusifolius), possessed a unique mechanism for accumulating unusually high amounts of lactate. Similarly, larva of butterfly (Papilio machaon) fed with fennel (Foeniculum vulgare) accumulated lactate. Same butterfly also showed the elevated level of glycerol-3-phosphate equivalent to lactate. These evidences provide new insights into the mechanism underlying metabolite alteration between host plants and insect herbivores. |
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