NIR-REFLECTANCE PLASTICITY IN PLANTAGO LANCEOLATA FLOWERS

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 多年生杂草车前（Plantago lanceolata）的花反射率具有表型可塑性。在凉爽的环境温度下产生的花比在温暖的环境温度下产生的花反射性更低且更暗。初步数据支持这一假设，即这种可塑性是适应性的，因为它允许个别植物部分温度调节自己的繁殖。植物通过改变光谱中可见光和近红外区域的花朵反射率来对温度变化做出反应。可见光区的变化可以通过低温下花色苷产量的增加来解释。该试点项目将评估磁共振显微镜在9 T磁体上的潜力，以阐明近红外区域变化的原因。

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.