BACK TO THE BASICS OF ROOTING
H.B. Turkey Jr
The phenomenon which nurserymen call rooting is really a combination of several processes and chemical interactions, often separated into root initiation and root development. In the first, cells capable of rejuvenating and becoming meristematic, receive appropriate chemical signals and start dividing. In the second, these meristematic groups of cells called root initials respond to different sets of signals and continue division and elongation into young roots, aided by factors in the environment.
Physiologists ask the nature of the signals, which cells perceive them, and why root cells are produced and not some other type. These are important considerations, because the theory of totipotency suggests that cells in plants have the genetic information to make a complete new plant.
First, what types of cells have the ability to rejuvenate, de-differentiate or to divide again, and where are these cells located? Many cells are so differentiated that it is difficult if not impossible for them to
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