Plant tolerance to excess light energy and photooxidative damage relies on plastoquinone biosynthesis.

Abstract excerpt

Plastoquinone-9 is known as a photosynthetic electron carrier to which has also been attributed a role in the regulation of gene expression and enzyme activities via its redox state. Here, we show that it acts also as an antioxidant in plant leaves, playing a central photoprotective role. When Ar...

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