Timeline of Plant Tissue Culture and Selected Molecular Biology Events
People wandered the earth, collecting and eating only what they found
growing in nature. By about 8,000 BC, however, the first farmers decided
to stay in one place and grow certain plants as crops — creating
agriculture and civilization, in that order
People first learn to use bacteria to make new and different foods, and to
employ yeast and fermentation processes to make wine, beer and
Plants used for food; Plants domesticated, selectively bred for desired
Increased cultivation of leguminous crops and crop rotations to increase
yield and land use
Cell theory, suggesting totipotentiality of cells. Schleiden M. J., Arch.
Anat., Physiol. U. wiss. Med. (J. Muller), 1838: 137-176; Schwann T.,
W. Engelman, No. 176 (1910).
Horse drawn harrows, seed drills, corn planters, horse hoes, 2-row
cultivators, hay mowers, and rakes Industrially processed animal feed and
Charles Darwin hypothesizes that animal and plant populations adapt over
time to best fit the environment
Louis Pasteur defines the role of micro-organisms and establishes the
science of microbiology
Gregor Mendel investigates how traits are passed from generation to
generation - called them factors
Johann Meischer isolates DNA from the nuclei of white blood cells
Plants synthesize organ-forming substances that are polarly
European botanists use Mendel's Law to improve plant species. This
is the beginning of classic selection.
First but unsuccessful attempt of tissue culture using monocots.
Haberlandt G., Sitzungsber Akad. Wiss. Wien, Math.-Naturwiss. Kl.,
Walter Suton coined the term "gene" and proposed that chromosomes
carry genes (factors that Mendel said that could be passed from
generation to generation)
First attempt in embryo culture of selected Crucifers.
Hannig B., Bot.
Zeitung, 62: 45-80.
Fusion of plant protoplasts though the products failed to survive.
E., Ber. Dtsch. Bot. Ges., 27: 589-598.