The researchers showed that this protein is only made in the roots of plants when the plants are starved for iron.
(the plants; are starved; for iron) (The researchers; showed; that this protein is only made in the roots of plants) Context(The researchers showed,List([0, 22))):(this protein; is only made; L:in the roots of plants)
The researchers showed,List([0, 22))
the plants The researchers this protein
are starved showed is only made
for iron
that this protein is only made in the roots of plants
L:in the roots of plants