Bacteroid Notes: Definitions & Explanations PDF | Download eBooks
Study Bacteroid lecture notes PDF with biology definitions and explanation to study What is Bacteroid?. Study bacteroid explanation with biology terms to review biology course for online degree programs.
Bacteroid Definition:
Inside each nodule, Rhizobium bacteria assume a form called bacteroids, which are contained within vesicles formed in the root cells.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Bacteroid Notes:
The outer host-cell derived symbiosome membrane encloses a space called the symbisome space or the peribacteroid space that surrounds the endosymbiont. In order for the symbiosome to be established as a nitrogen-fixing unit the enclosed bacterium has to be terminally differentiated into a morphologically changed bacteroid. The bacterium in the soil is free-living and motile. In the symbiosome it has to change its gene expression to adapt to a non-motile, non-reproductive form as the bacteroid. This change is noted by an increase in the size of the bacterium and its elongation. The bacterial membrane is also made permeable.
Keep Learning with Biology Notes
What is Residual volume?
Residual volume is the amount of air that remains in a person's lungs after fully exhaling. Doctors use tests to ...
What is Thermoregulation?
Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature ...
What is p53 gene?
p53 is an example of a tumor suppressor gene that encode a specific transcription factor that promotes the synthesis of ...
What is Balancing selection?
Balancing selection refers to a number of selective processes by which multiple alleles are actively maintained in the gene pool ...
What is Base?
n chemistry, bases are substances that, in aqueous solution, release hydroxide ions, are slippery to the touch, can taste bitter ...
What are Convergent evolution?
Convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of ...
