AUTHOR=Yin Heng , Du Yuguang , Dong Zhongmin TITLE=Chitin Oligosaccharide and Chitosan Oligosaccharide: Two Similar but Different Plant Elicitors JOURNAL=Frontiers in Plant Science VOLUME=7 YEAR=2016 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2016.00522 DOI=10.3389/fpls.2016.00522 ISSN=1664-462X