A root hair, the rhizoid of a vascular plant, is a tubular outgrowth of a trichoblast, a hair-forming cell on the epidermis of a plant root. As they are lateral extensions of a single cell and only rarely branched, they are invisible to the naked eye. They are found only in the region of maturation of the root. Just prior to the root hair cell development, there is a point of elevated phosphorylase activity.
Read more about Root Hair: Function, Formation, Importance, Survival
Famous quotes containing the words root and/or hair:
“There is a certain class of unbelievers who sometimes ask me such questions as, if I think that I can live on vegetable food alone; and to strike at the root of the matter at once,—for the root is faith,—I am accustomed to answer such, that I can live on board nails. If they cannot understand that, they cannot understand much that I have to say.”
—Henry David Thoreau (1817–1862)
“When the galactic sea was sucked
And all the dry seabed unlocked,
I sent my creature scouting on the globe,
That globe itself of hair and bone....”
—Dylan Thomas (1914–1953)