AUTHOR=Poltronieri Palmiro TITLE=Non-coding RNAs in Intercellular and Systemic Signaling JOURNAL=Frontiers in Plant Science VOLUME=3 YEAR=2012 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2012.00141 DOI=10.3389/fpls.2012.00141 ISSN=1664-462X