Last Minute Lecture

Sunlight Signaling, Plant Photoreceptors, and Photomorphogenesis Explained | Chapter 14 of Plant Physiology and Development Chapter 14 of Plant Physiology and Development explores how plants perceive and interpret sunlight—not for photosynthesis, but for regulating development, behavior, and adaptation. Using sophisticated photoreceptors, plants detect differences in light intensity, direction, duration, and spectral quality. These signals guide processes such as seed germination, stem elongation, flowering, stomatal behavior, circadian regulation, and phototropism. This chapter reveals the molecular basis of plant light sensing and highlights the ecological importance of photomorphogenesis. For a clear and structured overview, watch the Last Minute Lecture summary below. Watch the full chapter breakdown here: Photosynthesis vs. Photomorphogenesis: Distinct Light-Driven Processes Although photosynthesis captures energy from sunlight, photomorphogenesis reflects the plant’s ...