Pits are parts of plant cell walls which allow the exchange of fluids. In the case of pressure changes in the cell lumen pit aspiration can occur.
The cell wall is not totally complete around the cell.It is interrupted by narrow pores carrying fine strands of cytoplasm,which interlink the contents of the cells.They are called PLASMODESMATA. They form a protoplasmic continuum called SYMPLAST. It consists of a canal, lined by plasmamembrane. It has a simple or branched tub le knows as DESMOTUBLE. DESMOTUBLE is an extension of endoplasmic reticulum. Plasmodesmata serves as a passage for many substances to pass through.It is also believed that they have a role in the relay of stimuli.
Pit or PIT may refer to:
Luís Pedro de Freitas Pinto Trabulo (born 22 August 1994), known as Pité, is a Portuguese professional footballer who plays for FC Porto B as a midfielder.
Born in the town of Esgueira, Aveiro District, Pité joined local S.C. Beira-Mar's youth system in 2005, aged 11. He made his debut with the first team on 27 July 2013, playing the full 90 minutes in a 0–1 away loss against Portimonense SC for the season's Portuguese League Cup; his maiden appearance in the Segunda Liga took place on 12 August, in a 2–3 home defeat to FC Porto B.
Pité scored his first goal as a senior on 2 October 2013, helping to a 3–2 win at C.D. Santa Clara. He only missed seven games during the campaign, helping to a 12th-place finish amongst 22 teams.
On 1 July 2014, Pité signed for FC Porto, being assigned to the reserves also in the second division.
Charles-Joseph Marie Pitard, name sometimes given as Charles-Joseph Marie Pitard-Briau (1872 – January 1928) was a French pharmacist and botanist.
In 1899 he obtained his doctorate in natural sciences at the University of Bordeaux, later serving as a professor at the school of medicine in Tours. He conducted botanical and exploratory investigations in the Canary Islands (1904–06), Tunisia (1907–10 & 1913) and Morocco (1911–13). Many of his plant collections were sent to herbaria in Geneva and Paris.
He was the taxonomic authority of numerous botanical taxa. The genus Pitardia (Batt. ex Pit.) is named in his honor, as are plants with the specific epithets of pitardii and pitardiana.
Pitard also made significant contributions to the "Flore générale de L'Indo-Chine" (General flora of Indochina).