Plant Protection Plan: When Too Much of a Good Thing is Bad
When plants absorb more light energy than they can use—such as during a brief period of intense illumination—they have mechanisms to dissipate the excess energy as heat, thereby avoiding damage to their light-harvesting pigment complexes. Research has suggested that engineering plants’ photoprotection capabilities to minimize productivity loss could increase crop yields by up to 30 percent. And that would go a long way toward meeting future global food demand. However, significant gaps remain in scientists’ understanding of the molecular details underlying these mechanisms, including how they are triggered and their activation dynamics. Now, work by Berkeley Lab scientists, reported in pair of recent papers, provides several key insights into the mechanisms underlying one type of photoprotection.
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