Salk Chory PIFs (IMAGE)

Salk Institute

Salk Chory PIFs

Caption

Nuclei of plant cells are seen before and after the plant was exposed to shade. In the top images (before), the transcription factor PIF7 (red) is confined in speckles that contain the plant's light sensors (green). In the lower images (after), in the shaded plant, PIF7 is released, which is then free to bind to DNA and initiate gene activity.

Credit

Chan Yul Yoo, Meng Chen lab, UC Riverside

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