Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://ijs.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijs.0.000088
NBRP resources	free resource	National BioResource Project	https://rrc.nbrp.jp/references/list?pubmed=25634952
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/25634952