Nutritional ecology of carnivorous pitcher plants.

肉食性猪笼草的营养生态学。

• 批准号: 2466246
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2466246
• 关键词: Nutritional; ecology; carnivorous; pitcher; plants.

The carnivorous pitcher plant Sarracenia purpurea captures insect prey in pitchers formed from modified leaves. Prey are digested by a simple detritus-based food web that lives inside the pitchers. The nutrients from digested prey are then absorbed into the plant's tissues and used for growth and reproduction. The aquatic communities which live in Sarracenia purpurea pitchers are model 'micro-ecosystems'. In particular, comparison of how the plant and the pitcher community function in their native (North America) vs introduced (Europe) range is potentially a powerful approach for understanding how ecosystems function.This PhD will investigate the nutritional ecology of these pitcher plants by studying prey capture, digestion and nutrient transfer to the plants. This will be achieved using simple approaches and by using molecular markers (stable isotopes) to track nutrients through the system. You may also use DNA barcoding to determine microbial community composition. Plants will be studied in controlled conditions in greenhouses, and in-situ in Europe and potentially North America.

肉食性猪笼草（Sarracenia purpurea）用改良过的叶子制成的猪笼草捕捉昆虫猎物。猎物被生活在投手体内的简单的以碎屑为基础的食物网消化。被消化的猎物的营养物质被植物的组织吸收，用于生长和繁殖。生活在Sarracenia purpurea水罐中的水生群落是典型的“微生态系统”。特别是，比较植物和猪笼草群落在其原生（北美）和引进（欧洲）范围内的功能，可能是了解生态系统功能的有力方法。本博士将研究这些猪笼草的营养生态学，通过研究猎物的捕获，消化和植物的营养转移。这将通过简单的方法和使用分子标记（稳定同位素）来跟踪整个系统中的营养物质来实现。你也可以使用DNA条形码来确定微生物群落的组成。植物将在温室的受控条件下进行研究，并在欧洲和潜在的北美进行原位研究。