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Plants avoid sunburn by releasing an enzyme to detoxify harmful molecules [Registered]

A Dartmouth Unviersity-led team has discovered a group of stress-related proteins that explains how plants avoid sunburn in intense light, a finding that one day could help biotechnologists to develop crops that can better cope with hotter, drier conditions occurring in climate change. Their findings appear in the journal PNAS. Too much or too little sunlight or rapidly fluctuating light conditions cause stress to plants, which have sophisticated control systems to utilize light energy for photosynthesis and simultaneously protect themselves from sunburn from very bright sunlight. Plants perform these regulations mainly by regulating nuclear gene expression and multiple intracellular signalling…

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