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Above‐ground plant metabolomic responses to plant–soil feedbacks and herbivory
Journal of Ecology ( IF 5.5 ) Pub Date : 2020-03-30 , DOI: 10.1111/1365-2745.13394
Martine Huberty 1, 2, 3 , Young Hae Choi 3, 4 , Robin Heinen 1, 2 , T. Martijn Bezemer 1, 2
Affiliation  

  1. Understanding the causes of variation in foliar plant metabolomes is essential for our understanding of ecological interactions between plants and other organisms. It is well‐accepted that foliar herbivory alters metabolites in leaves. However, soil (micro)organisms can also induce such changes.
  2. We generated plant‐specific soil legacies by growing 12 plant species individually in a common starting soil. Then we planted all plant species in all soils and exposed a subset to foliar herbivory. We then used 1H nuclear magnetic resonance to analyse the shoot metabolomes of all responding plants.
  3. Above‐ground herbivory and soil legacies altered shoot metabolomes. In most plant species, soil legacy more strongly affected shoot metabolomes than foliar herbivory.
  4. Synthesis . Our results show that plant‐induced changes in soil alter metabolomes of plants that grow later in those soils. Such below‐ground legacy effects can have far‐stretching consequences for above‐ground multitrophic interactions as these often depend on the plant chemical composition. Recently, plant–soil feedbacks have received considerable attention in ecological studies, and our study now highlights that these feedbacks can be an important determinant of the often unexplained intraspecific variation in chemical composition among plants.


中文翻译:

地上植物对植物-土壤反馈和草食动物的代谢组学响应

  1. 了解叶植物代谢组变异的原因对于我们了解植物与其他生物之间的生态相互作用至关重要。人们普遍认为叶面食草改变了叶片中的代谢产物。但是,土壤(微生物)也会引起这种变化。
  2. 通过在常见的起始土壤中分别种植12种植物,我们产生了特定于植物的土壤遗产。然后,我们在所有土壤中种植了所有植物物种,并将其中的一部分暴露于叶面食草动物中。然后,我们使用1 H核磁共振来分析所有响应植物的枝条代谢组。
  3. 地上食草和土壤遗留物改变了芽的代谢组。在大多数植物物种中,土壤遗产比叶面食草对芽代谢组的影响更大。
  4. 综合。我们的结果表明,植物引起的土壤变化会改变后来在这些土壤中生长的植物的代谢组。这种地下遗留效应可能对地面多营养相互作用产生深远的影响,因为这些后果通常取决于植物的化学成分。最近,植物-土壤的反馈在生态学研究中受到了广泛关注,我们的研究现在强调,这些反馈可能是植物中化学成分经常无法解释的种内变异的重要决定因素。
更新日期:2020-03-30
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