Infographic: Skotomorphogenesis Versus Photomorphogenesis

Pectin fragments may signal plant cells to maintain a type of growth suited to darkness.

By Kerry Grens | February 1, 2018

© JULIA MOOREPlants use different growth mechanisms in dark and light conditions, called skotomorphogenesis and photomorphogenesis, respectively. A new study suggests pectin fragments in the cell wall signal other cells to maintain skotomorphogenesis in darkness. From these results, a model has emerged in which light somehow interrupts this pectin-based signaling so that photomorphogenesis can commence.

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