PYI: Integration of Physiological and Chemical Responses to Herbivory

PYI：对草食动物的生理和化学反应的整合

• 批准号: 9157258
• 负责人: Ian Baldwin
• 金额: $ 31.25万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9157258&HistoricalAwards=false
• 关键词: PYI; Integration; Physiological; Chemical; Responses

When the leaves of a plant are eaten by an herbivore, both defensive and physiological responses are observed in the remaining leaves. These responses contribute to a plant's resistance and resilience to herbivory, respectively. The metabolic integration of these responses has gone largely unexplored and will be examined in a species where leaf damage results in large (4-fold) increases in leaf alkaloids and large (2-fold) increases in the photosynthetic capacity. Specifically, the metabolic integration of the nitrogen-intensive responses to herbivory will be investigated using 15N and 14C-labeled alkaloid to follow the movement of nitrogen and carbon between root and shoot and between alkaloid and protein metabolism. The movement of nitrogen from alkaloid to leaf photosynthetic proteins will be correlated with changes in the photosynthetic capacity of leaves after damage. Examining chemical defenses as an integral part of the physiological processes by which plants regrow those tissues lost to herbivores, will strengthen our understanding of the evolution of chemical defenses in plants.

当植物的叶子被食草动物吃掉时， 防御和生理反应，观察在 剩下的叶子。这些反应有助于植物 对食草动物的抗性和恢复力。的 这些反应的代谢整合在很大程度上 未经探索，将在一个物种， 导致叶生物碱大量增加（4倍）， （2倍）增加光合能力。具体地说， 氮密集反应的代谢整合， 将使用15N和14C标记的生物碱研究植食性 跟踪氮和碳在根和根之间的运动， 以及生物碱和蛋白质代谢之间关系。运动 氮从生物碱到叶片光合蛋白质将是 与叶片光合能力的变化有关 损坏后。将化学防御作为一个组成部分， 植物组织再生的生理过程 失去了食草动物，将加强我们对 植物化学防御的进化