Dictionary » H » Hilum

Hilum

Definition

noun, plural: hila

(botany) The scar on a seed or a spore at the site where it was attached to its stalk during plant development

(botany) The nucleus of a starch grain

(anatomy) The part of an organ where structures (such as blood vessels, nerves, ducts, etc.) emerge from an organ or a gland; porta


Supplement

In botany, hilum pertains to the mark or scar seen on a plant seed or fungal spore from where it was attached to the stalk during development. The hilum on seeds is produced by the separation from its funicle or placenta. In spores, the hilum is formed by its detachment from the spore-bearing structure.

In anatomy, hilum refers to the part of an organ or gland where structures such as blood vessels, nerves, ducts, etc. enter or emerge from an anatomic part.


Word origin: Latin hilum (a trifle; a spot on a seed)

Synonym(s):

  • hilus (anatomy)
  • porta (anatomy)

Related term(s):


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


your answers

... of pea seeds were soaked over night and when they reached appropriate size they were examined for visible parts. On the exterior the radicle, hilum, and micropyle were visible. When the testa was removed, and the cotyledons separated, the seed revealed the hypocotyl and two folded plumule ...

See entire post
by DARKHEDGE
Sat Mar 25, 2006 1:10 pm
 
Forum: Botany Discussion
Topic: Marrowfat Peas
Replies: 51
Views: 44924


This page was last modified 01:26, 22 March 2015. This page has been accessed 10,495 times. 
What links here | Related changes | Permanent link