NIR-REFLECTANCE PLASTICITY IN PLANTAGO LANCEOLATA FLOWERS

车前草花的近反射可塑性

• 批准号: 7601192
• 负责人: Elizabeth H. Lacey
• 金额: $ 0.5万
• 依托单位: DUKE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7601192
• 关键词: Anthocyanins; Computer Retrieval of Information on Scientific Projects Database; Data; Flowers; Funding; Grant; Individual; Institution; Magnetic Resonance; Microscopy; Pilot Projects; Plantago; Plants; Plastics; Production; Reproduction; Research; Research Personnel; Resources; Source; Temperature; United States National Institutes of Health; cold temperature

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Floral reflectance in the weedy perennial, Plantago lanceolata, is phenotypically plastic. Flowers produced at cool ambient temperatures are less reflective and darker than flowers produced at warm ambient temperatures. Preliminary data support the hypothesis that this plasticity is adaptive because it allows individual plants to partially thermoregulate their own reproduction. Plants respond to changing temperature by altering floral reflectance in the visible and near-infrared regions of the spectrum. Changes in the visible region can be explained by increased anthocyanin production at low temperature. This pilot project will assess the potential of magnetic resonance microscopy on the 9T magnet to elucidate the reason for change in the near-infrared region.

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目及 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 多年生杂草植物车前子（Plantago lanceolata）的花朵反射率具有表型可塑性。在凉爽的环境温度下产生的花朵比在温暖的环境温度下产生的花朵反射更少且颜色更深。初步数据支持这样的假设：这种可塑性是适应性的，因为它允许个体植物部分地调节自身繁殖的温度。植物通过改变光谱可见光和近红外区域的花朵反射率来响应温度变化。可见光区域的变化可以用低温下花青素产量增加来解释。该试点项目将评估磁共振显微镜在 9T 磁体上的潜力，以阐明近红外区域变化的原因。