National and University Library, Ljubljana (NUK)
-
Adaptation mechanisms in insect eyes = Adaptacijski mehanizmi v žuželčjem očesuStušek, Peter, 1944-2023 ...Adaptation proccsscs in insect eyes occur on several levels, but two of the most prominent are the distal and proximal adaptation levels. In the distal, dioptrical part of the eye, adaptation is ... brought about by pupillary mechanismsč however, in the proximal, photoreceptive part of eye, adaptation is based predominantly on changes in the signaling cascade efficiency and on the successful delivery of oxygen to the mitochondria. For investigations of both types of adaptation, Ascalaphus (=Libelluloides) macaronius, a specialized neuropterian, provcd successful as a suitablc model lor studying both levels of adaptation. In this animal, the retinulac of the frontal part of eye exhibit just one type of photoreceptor sensitive only to ultraviolet lightč the pupillary response, however, is also triggered by light of longer wavelengths. Thus, it suggests that the screening of light in the distal part of the eye is independent of the receptor rnechanisms in the proximal part of the eye. In addition, the pupillary response also exhibits double time-dependent dynamics and thereby a double regulation of the photon flux of both the regenerating and the adapting light. With the aid of microscope techniques (TEM, SEM, LM), it was deterrnined that there is no massive displacement of pigment granules in the secondary pigment cells of Ascalaphus during the screening process as is characteristic for a typical superposition eye. The electron micrographs indicate that the pupil appearing at the tip of crystalline cone is formed as a result of interaction between the primary and secondary pigment cells and the distal columns of the retinular cells. The imporant phase of adaptation in the proximal receptive part of the eye is the termination of receptor potential, the response of which is also an indicator of the phototransductional cascade dynamic. (Abstract truncated at 2000 characters).Source: Acta biologica slovenica : ABS. - ISSN 1408-3671 (Vol. 43, št. 3, 2000, str. 41-70)Type of material - article, component part ; adult, seriousPublish date - 2000Language - englishCOBISS.SI-ID - 830031
Author
Stušek, Peter, 1944-2023 |
Drašlar, Kazimir |
Belušič, Gregor |
Zupančič, Gregor
Topics
zoologija |
insekti |
oko |
fiziologija |
adaptacija
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Stušek, Peter, 1944-2023 | 00846 |
Drašlar, Kazimir | 10397 |
Belušič, Gregor | 22930 |
Zupančič, Gregor | 11713 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location:
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi