Assertion: polysaccharide | /r/HasProperty | secreted by healthy trichodesmium
Facets:
value: rarely
type: DEGREE
Source sentences:
text: Missing PUL expression in Te101 during co-culture with nitrogen-fixing Trichodesmium cyanobacteria  underlined that PUL are substrate regulated, and furthermore showed that polysaccharides are rarely secreted by healthy Trichodesmium.