35. Soil
Nitrogen Fixation
Multiple Choice
Multiple ChoiceWhich of these describes the initial interaction between Rhizobium and a soybean root?
A
Vesicles containing bacteria bud into cortical cells.
B
The nodule develops vascular tissue.
C
An infection thread is initiated in the root hair of the legume.
D
There is nodule growth in response to secretions from Rhizobium.
E
Soybeans secrete chemical signals that are detected by Rhizobium.
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