期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 599, 期 -, 页码 198-206出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2017.05.003
关键词
Food chain; Harmonia axyridis (multicolored Asian lady beetle); Metabolomics; Rice (Oryza sativa L.); Salinity; Sitobion avenae (wheat aphid)
资金
- KRIBB Research Initiative Program
- National Research Foundation of Korea (NRF) - MEST [20110028162]
- Next-Generation BioGreen 21 Program [PJ011911042017]
- Rural Development Administration, Republic of Korea
- Rural Development Administration (RDA), Republic of Korea [PJ011911042017] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Salinization is one of the most important abiotic stressors in an ecosystem. To examine how exposing a host plant to excess salt affects the consequent performance and metabolism of insects in a food chain, we determined the life history traits and the metabolite profiles in rice (Oryza sativa), the herbivore Sitobion avenae, and its predator Harmonics axyridis. When compared with performance under normal (non-stressed) conditions, exposing plants to 50 mM NaCl significantly delayed the timing of development for S. avenae fed on rice and H. axyridis and also reduced the body mass of the latter. Our GC-MS-based analysis revealed clear differences in metabolite profiles between trophic levels or treatment conditions. Salinity apparently increased the levels of main components in rice, but decreased levels of major components in S. avenae and H. axyridis. In addition, 16 metabolites showed salinity-related contrasts in this trophic interaction for our rice-S. avenae-H. axyridis system. Salinity impeded the accumulation of metabolites, especially several sugars, amino acids, organic acids, and fatty acids in both insects, a response that was possibly associated with the negative impacts on their growth and reproduction under stress conditions. (c) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据