NIR-REFLECTANCE PLASTICITY IN PLANTAGO LANCEOLATA FLOWERS

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 多年生杂草车前草的花反射是典型的塑料。在较冷的环境温度下生产的花比在温暖的环境温度下生产的花的反射率更低，颜色更暗。初步数据支持这样一种假设，即这种可塑性是适应性的，因为它允许单个植物部分地调节自己的繁殖。植物通过改变可见光和近红外区的花朵反射率来响应温度的变化。可见光区的变化可以用低温下花色苷产量的增加来解释。这个试点项目将评估9T磁体上磁共振显微镜的潜力，以阐明近红外区发生变化的原因。

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.