AUTHOR=Tang Bor Luen TITLE=Thoughts on a very acidic symbiosome JOURNAL=Frontiers in Microbiology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2015.00816 DOI=10.3389/fmicb.2015.00816 ISSN=1664-302X