History
Henri-Louis Duhamel du Monceau investigated wound-healing responses in elm trees, and was the first to report formation of callus tissue on live plants.
In 1908, E. F. Simon was able to induce callus from poplar stems that also produced roots and buds. The first reports of callus induction in vitro came from three independent researchers in 1939. P. White induced callus derived from tumor-developing procambial tissues of hybrid Nicotiana glauca that did not require hormone supplementation. Gautheret and Nobecourt were able to maintain callus cultures of carrot using auxin hormone additions.
Read more about this topic: Callus (cell Biology)
Famous quotes containing the word history:
“Every library should try to be complete on something, if it were only the history of pinheads.”
—Oliver Wendell Holmes, Sr. (1809–1894)
“When we of the so-called better classes are scared as men were never scared in history at material ugliness and hardship; when we put off marriage until our house can be artistic, and quake at the thought of having a child without a bank-account and doomed to manual labor, it is time for thinking men to protest against so unmanly and irreligious a state of opinion.”
—William James (1842–1910)
“The history of mankind interests us only as it exhibits a steady gain of truth and right, in the incessant conflict which it records between the material and the moral nature.”
—Ralph Waldo Emerson (1803–1882)