Homeodomain leucine-zipper proteins and their role in synchronizing growth and development with the environment Molecular Cloning of ZmPP6C Gene and Its Expression Patterns in Response to Light and Stress Treatments in Maize (Zea mays L.) A pair of light signaling factors FHY3 and FAR1 regulates plant immunity by modulating chlorophyll biosynthesis Timing of Photoperiodic Flowering: Light Perception and Circadian Clock