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Portable gas exchange and flourescence monitering system

便携式气体交换和荧光监测系统

基本信息

批准号：
407742-2011
负责人：
Emery, Neil
金额：
$ 4.88万
依托单位：
Trent University
依托单位国家：
加拿大
项目类别：
Research Tools and Instruments - Category 1 (<$150,000)
财政年份：
2010
资助国家：
加拿大
起止时间：
2010-01-01 至 2011-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472711
关键词：
Portable gas exchange flourescence monitering

项目摘要

We are requesting a device for measuring the physiological performance of plants. The equipment can be used in a laboratory setting or transported to natural or agricultural fields for use. By clamping a leaf or other plant part in a small chamber, the device measures the exchange of water and gasses. These measurements will tell us how well the plant is photosynthesizing, how much it is respiring and how much water it is losing in any given situation. A separate function measures the fluorescence of chlorophyll while it photosynthesizes. This fluorescence can give an indication of how much stress the plant is experiencing. By knowing all these measures from individual plants, we will be able to deduce how a plant allocates and uses its resources, such as sugars and amino acids, among its component organs. It can also give us insight into why different populations of plants will change or determine their developmental processes. This includes how much plants invest in roots, leaves or seeds. Knowing this, we will better understand what limits reproductive effort in wild plants or seed yield in agricultural crops. This information will also reveal how patterns of resource allocation vary in response to key aspects of plant life histories (e.g., clonality, sex allocation), and in turn, provide insights into the evolution of plant life-history strategies.

我们需要一种测量植物生理性能的装置。该设备可以在实验室环境中使用，也可以运输到自然或农业领域使用。通过将叶子或其他植物部分夹在一个小腔室中，该设备测量水和气体的交换。这些测量将告诉我们植物的光合作用有多好，它呼吸了多少，在任何情况下损失了多少水。一个单独的函数测量叶绿素在光合作用时的荧光。这种荧光可以指示植物正在经历多大的压力。通过了解单个植物的所有这些指标，我们将能够推断出植物如何在其组成器官之间分配和使用其资源，如糖和氨基酸。它还可以让我们深入了解为什么不同的植物种群会改变或决定它们的发育过程。这包括植物在根、叶或种子上投入了多少。了解了这一点，我们将更好地了解是什么限制了野生植物的繁殖努力或农作物的种子产量。这些信息还将揭示资源分配的模式如何根据植物生活史的关键方面而变化（例如，克隆性，性别分配），并反过来，提供深入了解植物生活史策略的演变。