Phosphatidic acid signaling: Opening new frontiers in plants.

Phosphatidic acid acts as a dynamic second messenger in plants under multiple stresses, with diacylglycerol kinase-derived signaling mechanisms broadening functional profiles.

• Why it matters: Stress-responsive PA signaling is important, but mechanistic understanding has gaps and suggests new research directions beyond what is currently known.
• What they did: The forum article reviews recent mechanistic insights into diacylglycerol kinase-derived PA signaling and highlights unresolved knowledge gaps.
• The result: The expanded functional profiles and identified gaps point to potential avenues for future plant research on PA signaling under stress.

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