Advanced

The anostracan rhabdom and the basement membrane. An ultrastructural study of the Artemia compound eye (Crustacea)

Elofsson, Rolf LU and Odselius, Rolf (1975) In Acta Zoologica 56. p.141-153
Abstract
The ommatidia of the compound eyes of Artemia salina L. are normally composed of four crystalline cone cells containing glycogen. The cells are enveloped by two so-called “cellules épidermiques juxta-cristallines”. There are also six pigmented retinula cells, all contributing to the rhabdom.

A peculiar feature of the Artemia crystalline cone cells is that their elongated parts, the so-called cone cell roots, widen and flatten proximally, forming interdigitating “endfeet”. The basement membrane thus consists of a cellular portion combined with the basal lamina.

The main mass of the rhabdom of the Artemia eye is built up by five retinula cells, two contributing a smaller part. The microvilli are oriented in four directions,... (More)
The ommatidia of the compound eyes of Artemia salina L. are normally composed of four crystalline cone cells containing glycogen. The cells are enveloped by two so-called “cellules épidermiques juxta-cristallines”. There are also six pigmented retinula cells, all contributing to the rhabdom.

A peculiar feature of the Artemia crystalline cone cells is that their elongated parts, the so-called cone cell roots, widen and flatten proximally, forming interdigitating “endfeet”. The basement membrane thus consists of a cellular portion combined with the basal lamina.

The main mass of the rhabdom of the Artemia eye is built up by five retinula cells, two contributing a smaller part. The microvilli are oriented in four directions, two being orthogonal. The sixth cell contributes on two small portions to the rhabdom in the distalmost and a more proximal position. The rest of it runs axon-like outside the omnatidium. Where the sixth cell wedges in, the direction of the microvilli is changed and has no orthogonal pattern.

Two rhabdom types of compound eyes are distinguished: the decapod or banded or layered rhabdom: and the anostracan rhabdom with continuous rhabdomeres.
(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Zoologica
volume
56
pages
141 - 153
external identifiers
  • scopus:0001641586
DOI
10.1111/j.1463-6395.1975.tb00089.x
language
English
LU publication?
yes
id
09064f23-ef02-4256-a6c6-a243dcb85cba
date added to LUP
2016-12-03 12:25:52
date last changed
2017-01-01 08:41:40
@article{09064f23-ef02-4256-a6c6-a243dcb85cba,
  abstract     = {The ommatidia of the compound eyes of Artemia salina L. are normally composed of four crystalline cone cells containing glycogen. The cells are enveloped by two so-called “cellules épidermiques juxta-cristallines”. There are also six pigmented retinula cells, all contributing to the rhabdom.<br/><br/>A peculiar feature of the Artemia crystalline cone cells is that their elongated parts, the so-called cone cell roots, widen and flatten proximally, forming interdigitating “endfeet”. The basement membrane thus consists of a cellular portion combined with the basal lamina.<br/><br/>The main mass of the rhabdom of the Artemia eye is built up by five retinula cells, two contributing a smaller part. The microvilli are oriented in four directions, two being orthogonal. The sixth cell contributes on two small portions to the rhabdom in the distalmost and a more proximal position. The rest of it runs axon-like outside the omnatidium. Where the sixth cell wedges in, the direction of the microvilli is changed and has no orthogonal pattern.<br/><br/>Two rhabdom types of compound eyes are distinguished: the decapod or banded or layered rhabdom: and the anostracan rhabdom with continuous rhabdomeres.<br/>},
  author       = {Elofsson, Rolf and Odselius, Rolf},
  language     = {eng},
  pages        = {141--153},
  series       = {Acta Zoologica},
  title        = {The anostracan rhabdom and the basement membrane. An ultrastructural study of the Artemia compound eye (Crustacea)},
  url          = {http://dx.doi.org/10.1111/j.1463-6395.1975.tb00089.x},
  volume       = {56},
  year         = {1975},
}