远红外成像技术在植物干旱响应机制研究中的应用

植物干旱响应机制非常复杂，气孔开闭是植物适应干旱逆境的机制之一。一般气孔行为的改变会直接反映在一些生理指标（如气孔导度、蒸腾强度等）的改变上，继而影响叶片的温度。一旦遇到外界胁迫（如干旱）的影响，叶温发生变化将被用来监测诊断植株的受胁迫情况。远红外热成像是一种可将目标物体红外热辐射转化成热像彩图的技术，具有高分辨率、非接触、高通量的特征。为此，对植物干旱响应机制与远红外成像技术在植物上的应用研究进行综述，阐明远红外成像技术应用于植物干旱响应研究的机制，提出了远红外热成像技术应用于植物抗旱育种的可能性。

Application of Infrared Thermography in the Research of Plant Mechanism Response to Drought

Plant drought response mechanism was very complicated, stomatal movement was one of the mechanisms of plant adaptation to drought stress. General stomatal behavior change would directly reflected on some physiological indexes such as stomatal conductance, transpiration intensity change, thus resulting in the increase of leaf temperature. Once encounter stresses such as drought, leaf temperature changes would be used to monitor and diagnosis of plant stress condition. Infrared thermography technology could converted thermal radiation of a target object into color pictures we could seeing, which had characteristic with high resolution, non-contact, high-throughput. In this study, the mechanism of plant response to drought, as well as the infrared technology application in plant drought resistance research was reviewed to clarify the infrared thermography to study the mechanisms of plant response to drought, proposed the possibility of infrared thermography technology applying in the plant breeding for drought-resistance.