Spermine Induces Autophagy in Plants: Possible Role of NO and Reactive Oxygen Species.

This is the first study to show that polyamine spermine, a low-molecular-weight nitrogen-containing compound, can induce autophagy in plants. This process is accompanied by an increased generation of reactive oxygen species and nitric oxide, which play a signal role and are required for triggering autophagy. [ABSTRACT FROM AUTHOR]