Dissertation Research: Effects of Enriched CO2 Environments on Plants and Insects: Herbivory and Resource Allocation

论文研究：富二氧化碳环境对植物和昆虫的影响：食草和资源分配

• 批准号: 8800920
• 负责人: Fakhri Bazzaz
• 金额: $ 1万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8800920&HistoricalAwards=false
• 关键词: Dissertation; Research; Effects; Enriched; CO2

The ability to simulate enriched CO2 atmospheres provides a unique opportunity to: 1) study the dynamics of plant/herbivore interactions under these conditions; and 2) examine plant allocation patterns under controlled carbon and nitrogen availabilities. The nutritional ecology and fitness of herbivores feeding on plants grown in enhanced CO2 environments over several generations will be investigated. In addition, the effects of herbivores on plant fitness under different CO2 conditions will be compared. Plantago lanceolata (Plantaginaceae), a herbaceous perennial which contains iridoid glycosides, and a specialist herbivore, Junonia coenia (Lepidoptera: Nymphalidae), which uses these compounds as feeding and oviposition stimulants, will serve as an excellent system to study these interactions. To examine trade-offs in allocation of carbon and nitrogen resources to growth, reproduction, and defense, individuals of two plant species, differing in the classes of allelochemicals they contain, will be grown under varying carbon (CO2) and nitrogen availabilities. Growth, reproductive output and allelochemical content will be determined for P. lanceolata (which contains iridoid glycosides) and Penstemon digitalis (Scrophulariaceae) which contains both nitrogen-based (alkaloids) and carbon-based (phenolics and iridoid glycosides) allelochemicals.

模拟富二氧化碳大气的能力提供了一个 独特的机会：1）研究植物/食草动物的动态 在这些条件下的相互作用; 2）检查植物 控碳控氮配置模式 可用性。 营养生态学和健身 食草动物以生长在高二氧化碳环境中的植物为食 几代人将被调查。 此外该 不同CO2浓度下植食动物对植物适合度的影响 条件将进行比较。 长叶车前 （Plantinaceae），一种含有环烯醚萜的多年生草本植物 还有一种专门的食草动物，Junonia coenia （鳞翅目：蛱蝶科），它使用这些化合物作为饲料 和产卵兴奋剂，将作为一个优秀的系统， 研究这些互动。 研究碳和氮分配的权衡 资源的增长，繁殖和防御，个人的 两种植物物种，不同的类化感物质 它们含有，将在不同的碳（CO2）下生长， 氮素有效性。 生长、生殖产出和 将测定披针叶的化感物质含量 （其中含有环烯醚萜苷）和洋地黄 （玄参科），其中既含有氮基（生物碱） 和碳基（酚类和环烯醚萜苷） 化感物质