Assertion: bacteriochlorophyll | /r/AtLocation | those bacteria
Facets:
value: exclusively
type: DEGREE
Source sentences:
text: It is worth noting that because bacteriochlorophyll a cannot be synthetized without BchF and because BchF is only and exclusively found in those bacteria that make bacteriochlorophyll a; the phylogeny of this enzyme is, in consequence, the most direct piece of evidence for the origin of phototrophy based on bacteriochlorophyll a.