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Extracellular ATP Functions as an Endogenous External Metabolite Regulating Plant Cell Viability
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Plant Cell
- Article date:
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November 1, 2005
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Copyright informationCopyright American Society of Plant Physiologists Nov 2005. Provided by ProQuest LLC. (Hide copyright information)
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ATP is a vital molecule used by living organisms as a universal source of energy required to drive the cogwheels of intracellular biochemical reactions necessary for growth and development. Animal cells release ATP to the extracellular milieu, where it functions as the primary signaling cue at th
e epicenter of a diverse range of physiological processes. Although recent findings revealed that intact plant tissues release ATP as well, there is no clearly defined physiological function of extracellular ATP in plants. Here, we show that extracellular ATP is essential for maintaining plant cell viability. Its removal by the cell-impermeant traps glucose-hexokinase and apyrase triggered death in ...
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