Relationship between chemical profiles of plants, their herbivore biodiversity and land-use

人们对某一植物物种或植物群落的化学多样性（即代谢物的数量和质量组成）与其周围的生物多样性或土地使用强度之间的关系知之甚少。在第一个资助期内，我们调查了模式植物Plantago lanceolata的化学多样性，并检测到在某些情况下与上述环境因素相关的高化学变化。为了能够评估化学变异的顺序，将筛选五种植物物种（草本和禾本科）的化学多样性和其他重要的植物性状（光合潜力，菌根状况等）。在新提案中。在环境代谢指纹法中，将对不同土地使用的地块上的植物进行化学成分评估，并对植物进行不同的处理，包括控制切割、草食性或菌根化。因此，我们的目标是测量常见的以及不同的诱导代谢变化，包括信号激素，比较在五个物种。通过调查这一范围内的化学多样性，我们的研究试图增加对这一重要生物多样性层的理解。数据采集的复杂性将增加对植物调节的潜在机制的理解。

Very little is known about the relationships between the chemical diversity, i.e. the quantitative and qualitative composition of metabolites, of a given plant species or plant community and its surrounding biodiversity or the land-use intensity. Within the first funding period, we investigated the chemodiversity of the model plant species Plantago lanceolata and detected a high chemical variation which was in some instances correlated with the mentioned environmental factors. To be able to evaluate the order of chemical variation, five plant species (herbs and grasses) will be screened for their chemical diversity and other important plant traits (photosynthetic potential, mycorrhizal status etc.) in the new proposal. In an environmental metabolic fingerprinting approach, chemical composition will be assessed in plants on plots of different land-use and after different treatments using controlled cutting, herbivory or mycorrhization. Thereby, we aim to measure common as well as differently induced metabolic changes, including signalling hormones, comparatively in the five species. By investigating the chemical diversity at this range, our study attempts to increase the understanding of this important layer of biodiversity. The complexity of data acquisition will add to the understanding of the underlying mechanisms of plant regulation.