Columella in Medical Products
Voloshin Dorsal Columella Implants
Description: This Implant enhances and restores the nasal contour, The large selection of sizes with a variety of flares and lengths allows for more individualized results...
Company:Spectrum Designs Medical
Columella in Biological Dictionary
Lucius Iunius Moderatus Columella
was a Roman writer. After a career in the army, he took up farming. His De Re Rustica in twelve volumes has been completely preserved and forms our most important source on Roman agriculture, together with the works of Cato the Elder... The columella
, is an ...
...the tip ... The root cap cells are derived from the rootcap meristem that pushes cells ... Root cap cells differentiate first into columella
cells. ... The root cap also plays a role in a plant's response to gravity. ... Above the root cap is the zone of division, and above that...
...seeds, trends ... The new fern possesses megaspore complexes with three to four ... The megaspore wall ... megaspore either directly or by a columella
(a ﬁlamentous structure ... ... cells thick, megasporocyte single, megaspore lacking sporopollenin and cuticle, ... The megaspore that ger...