10 Questions
What is the primary function of the bacteroids?
To protect nitrogenase from oxygen
What is the primary source of oxygen for bacteroids?
Host plant cells
What is the fate of ammonia released from bacteroids?
It is converted into amides or ureids
What is the role of xylem in the transport of nitrogenous compounds?
It transports amides or ureids from infected nodule cells to shoots
What determines the host specificity of Rhizobia and Bradyrhizobia?
The structure of lipochitooligosaccharides
What is the result of cross inoculation group cell signaling?
The host specificity of Rhizobia and Bradyrhizobia
What is the primary function of Nod factors?
To determine host specificity
Which of the following is an example of a host plant that is nodulated by Rhizobium leguminosarum biovar trifolii?
Clover (Trifolium)
What is the role of infected nodule cells in the nitrogen fixation process?
To convert ammonia into amides
What is the benefit of the interaction between Rhizobia and host legumes?
It fixes nitrogen from the atmosphere
Test your knowledge on the mechanisms of Rhizobia infection in plant roots, including the role of nod genes, infection threads, and cell entry. Learn about the symbiotic relationship between Rhizobia and legume plants.
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