Assertion: moss's rhizoid | /r/CapableOf | differentiate in response
Facets:
value: to the ubiquitous plant hormone auxin
type: CAUSE
Source sentences:
text: (2003) have shown that rhizoids on gametophores of Physcomitrella differentiate in response to the ubiquitous plant hormone auxin, followed by a (presumably more specific) signal from HD-ZIP homeodomain genes.