Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines
Insects harbor a community of gut bacteria, ranging from pathogenic to obligate mutualistic organisms. Both biotic and abiotic factors can influence species composition and structure of the insect gut bacterial communities. Dendroctonus valens is a destructive forest pest in China. To overcome host...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-06-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fmicb.2018.01251/full |
| _version_ | 1828498022886014976 |
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| author | Dandan Xu Letian Xu Letian Xu Fangyuan Zhou Fangyuan Zhou Bo Wang Shanshan Wang Shanshan Wang Min Lu Jianghua Sun |
| author_facet | Dandan Xu Letian Xu Letian Xu Fangyuan Zhou Fangyuan Zhou Bo Wang Shanshan Wang Shanshan Wang Min Lu Jianghua Sun |
| author_sort | Dandan Xu |
| collection | DOAJ |
| description | Insects harbor a community of gut bacteria, ranging from pathogenic to obligate mutualistic organisms. Both biotic and abiotic factors can influence species composition and structure of the insect gut bacterial communities. Dendroctonus valens is a destructive forest pest in China. To overcome host pine defenses, beetles mass-attack the pine to a threshold density that can exhaust pine defenses. The intensity of pine chemical defenses and carbohydrate concentrations of pines can be influenced by beetle attack, both of which are known factors that modify beetle’s gut microbiota. However, little is known to what extent variation exists in the beetle’s gut communities, and host monoterpenes and carbohydrates at different attack densities. In this study, the gut bacterial microbiota of D. valens at low and high attack densities were analyzed, and monoterpenes and carbohydrates in host pine phloem were assayed in parallel. The results showed that no significant changes of gut bacterial communities of the beetles and concentrations of D-glucose, D-pinitol, and D-fructose in pine phloem were found between low and high attack densities. The concentrations of α-pinene, β-pinene, limonene at high attack densities were significantly higher than those at low attack densities. Our results suggested that different attack densities of D. valens influence monoterpenes concentration of host pines’ phloem but have no significant impact on gut bacterial community structures of D. valens and carbohydrate concentration of host trees’ phloem in early attack phase. Similar gut bacterial community structures of D. valens between low and high attack densities might be due to the quick adaptation of gut microbiota to high monoterpenes concentrations. |
| first_indexed | 2024-12-11T12:59:33Z |
| format | Article |
| id | doaj.art-9153c11bea794e66b0599a16de068b76 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-12-11T12:59:33Z |
| publishDate | 2018-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-9153c11bea794e66b0599a16de068b762022-12-22T01:06:30ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-06-01910.3389/fmicb.2018.01251379819Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host PinesDandan Xu0Letian Xu1Letian Xu2Fangyuan Zhou3Fangyuan Zhou4Bo Wang5Shanshan Wang6Shanshan Wang7Min Lu8Jianghua Sun9State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaHubei Collaborative Innovation Center for Green Transformation of Bio-Resources, College of Life Science, Hubei University, Wuhan, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaShandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, ChinaKey Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaInstitute of Health Sciences, Anhui University, Hefei, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaInsects harbor a community of gut bacteria, ranging from pathogenic to obligate mutualistic organisms. Both biotic and abiotic factors can influence species composition and structure of the insect gut bacterial communities. Dendroctonus valens is a destructive forest pest in China. To overcome host pine defenses, beetles mass-attack the pine to a threshold density that can exhaust pine defenses. The intensity of pine chemical defenses and carbohydrate concentrations of pines can be influenced by beetle attack, both of which are known factors that modify beetle’s gut microbiota. However, little is known to what extent variation exists in the beetle’s gut communities, and host monoterpenes and carbohydrates at different attack densities. In this study, the gut bacterial microbiota of D. valens at low and high attack densities were analyzed, and monoterpenes and carbohydrates in host pine phloem were assayed in parallel. The results showed that no significant changes of gut bacterial communities of the beetles and concentrations of D-glucose, D-pinitol, and D-fructose in pine phloem were found between low and high attack densities. The concentrations of α-pinene, β-pinene, limonene at high attack densities were significantly higher than those at low attack densities. Our results suggested that different attack densities of D. valens influence monoterpenes concentration of host pines’ phloem but have no significant impact on gut bacterial community structures of D. valens and carbohydrate concentration of host trees’ phloem in early attack phase. Similar gut bacterial community structures of D. valens between low and high attack densities might be due to the quick adaptation of gut microbiota to high monoterpenes concentrations.https://www.frontiersin.org/article/10.3389/fmicb.2018.01251/fullDendroctonus valensgut microbiotamonoterpenescarbohydratesattack density |
| spellingShingle | Dandan Xu Letian Xu Letian Xu Fangyuan Zhou Fangyuan Zhou Bo Wang Shanshan Wang Shanshan Wang Min Lu Jianghua Sun Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines Frontiers in Microbiology Dendroctonus valens gut microbiota monoterpenes carbohydrates attack density |
| title | Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines |
| title_full | Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines |
| title_fullStr | Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines |
| title_full_unstemmed | Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines |
| title_short | Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines |
| title_sort | gut bacterial communities of dendroctonus valens and monoterpenes and carbohydrates of pinus tabuliformis at different attack densities to host pines |
| topic | Dendroctonus valens gut microbiota monoterpenes carbohydrates attack density |
| url | https://www.frontiersin.org/article/10.3389/fmicb.2018.01251/full |
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