Retinal Structure and Function in the Walleye (Stizostedion vitreum vitreum) and Sauger (S. canadense)

1977 ◽  
Vol 34 (10) ◽  
pp. 1467-1474 ◽  
Author(s):  
M. A. Ali ◽  
M. Anctil
Keyword(s):  
Light Intensity ◽  
Dark Adaptation ◽  
Structure And Function ◽  
Stizostedion Vitreum ◽  
Ventral Region ◽  
Stizostedion Canadense ◽  
Tapetum Lucidum ◽  
Structural Differences ◽  
Retinal Structure ◽  
And Function

In the sauger, Stizostedion canadense, the tapetum lucidum of the retina was found to be more highly developed than in the walleye, S. vitreum vitreum. The tapetum is uniformly distributed throughout the sauger's eye, whereas it reaches a comparable development only in the ventral region of the walleye's retina. Other structural differences also suggested that the sauger's retina is more sensitive to light than the walleye's. In both species, photomechanical changes in response to light- and dark-adaptation were restricted to the retinal epithelial pigment (melanin) and the rods. Electroretinographic recordings appeared to be correlated with the differences in tapetal development and habits of the two species. Key words: Percidae, Stizostedion vitreum vitreum, S. canadense, light intensity, retinal structure, histology, electrophysiology, behavior

Photoreceptors and Visual Pigments as Related to Behavioral Responses and Preferred Habitats of Perches (Perca spp.) and Pikeperches (Stizostedion spp.)

1977 ◽  
Vol 34 (10) ◽  
pp. 1475-1480 ◽  
Author(s):  
M. A. Ali ◽  
R. A. Ryder ◽  
M. Anctil
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Behavioral Responses ◽  
Structure And Function ◽  
Stizostedion Vitreum ◽  
Review Of The Literature ◽  
Predator Prey ◽  
Tapetum Lucidum ◽  
Retinal Structure ◽  
And Function

A review of the literature indicated contrasts in retinal structure and function between perches (Perca spp.) and pikeperches (Stizostedion spp.). Foremost among these were differences in size and distribution of rods, size and shape of cones, extent of retinomotor responses, possession or lack of reflecting material, and relative concentrations of melanin. The perches are primarily active by daylight, whereas the pikeperches are most active during twilight or at night. The coincidental occupancy of shoal areas by yellow perch (Perca flavescens) and walleye (Stizostedion vitreum vitreum) at twilight is related to decreasing visual acuity of the former and the approach of optimum visual performance in the latter species. On this basis the two species have a classic predator–prey relationship. Key words: histology, light, Perca sp., photopic vision, predation, retina, Stizostedion vitreum vitreum, symbiosis, tapetum lucidum

Retinal Structure and Function in Perinatally HIV-Infected and cART-Treated Children: A Matched Case–Control Study

2015 ◽  
Vol 56 (6) ◽  
pp. 3945 ◽  
Author(s):  
Nazli Demirkaya ◽  
Sophie Cohen ◽  
Ferdinand W. N. M. Wit ◽  
Michael D. Abramoff ◽  
Reinier O. Schlingemann ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Structure And Function ◽  
Matched Case ◽  
Retinal Structure ◽  
And Function ◽  
Matched Case Control Study ◽  
Control Study

scholarly journals Retinal Structure and Function in Achromatopsia

Ophthalmology ◽  
2014 ◽  
Vol 121 (1) ◽  
pp. 234-245 ◽  
Author(s):  
Venki Sundaram ◽  
Caroline Wilde ◽  
Jonathan Aboshiha ◽  
Jill Cowing ◽  
Colin Han ◽  
...  
Keyword(s):  
Structure And Function ◽  
Retinal Structure ◽  
And Function

scholarly journals CRB2 in immature photoreceptors determines the superior-inferior symmetry of the developing retina to maintain retinal structure and function

2018 ◽  
Vol 27 (18) ◽  
pp. 3137-3153 ◽  
Author(s):  
Peter M Quinn ◽  
C Henrique Alves ◽  
Jan Klooster ◽  
Jan Wijnholds
Keyword(s):  
Structure And Function ◽  
Retinal Structure ◽  
And Function

scholarly journals Direct comparison of retinal structure and function in retinitis pigmentosa by co-registering microperimetry and optical coherence tomography

PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0226097 ◽  
Author(s):  
Jun Funatsu ◽  
Yusuke Murakami ◽  
Shunji Nakatake ◽  
Masato Akiyama ◽  
Kohta Fujiwara ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinitis Pigmentosa ◽  
Structure And Function ◽  
Optical Coherence ◽  
Retinal Structure ◽  
And Function

scholarly journals Quantitative Analysis of Retinal Structure and Function in Two Chromosomally Altered Mouse Models of Down Syndrome

2020 ◽  
Vol 61 (5) ◽  
pp. 25
Author(s):  
Daniella B. Victorino ◽  
Jonah J. Scott-McKean ◽  
Mark W. Johnson ◽  
Alberto C. S. Costa
Keyword(s):  
Down Syndrome ◽  
Quantitative Analysis ◽  
Mouse Models ◽  
Structure And Function ◽  
Retinal Structure ◽  
And Function

scholarly journals Long-Term Rescue of Retinal Structure and Function by Rhodopsin RNA Replacement with a Single Adeno-Associated Viral Vector in P23H RHO Transgenic Mice

2012 ◽  
Vol 23 (4) ◽  
pp. 356-366 ◽  
Author(s):  
Haoyu Mao ◽  
Marina S. Gorbatyuk ◽  
Brian Rossmiller ◽  
William W. Hauswirth ◽  
Alfred S. Lewin
Keyword(s):  
Transgenic Mice ◽  
Viral Vector ◽  
Structure And Function ◽  
Retinal Structure ◽  
And Function

scholarly journals Understanding the impacts of self-shuffling approach on structure and function of shuffled endoglucanase enzyme via MD simulations

2020 ◽  
Vol 45 (2) ◽  
Author(s):  
Aslı Yenenler ◽  
Umut Gerlevik ◽  
Ugur Sezerman
Keyword(s):  
Experimental Studies ◽  
Salt Bridge ◽  
Md Simulations ◽  
Structure And Function ◽  
Computational Approach ◽  
Intramolecular Interactions ◽  
Structural Basis ◽  
Functional Differences ◽  
Structural Differences ◽  
And Function

AbstractObjectiveWe identify the impacts of structural differences on functionality of EG3_S2 endoglucanase enzyme with MD studies. The results of previous experimental studies have been explained in details with computational approach. The objective of this study is to explain the functional differences between shuffled enzyme (EG3_S2) and its native counterpart (EG3_nat) from Trichoderma reseei, via Molecular Dynamics approach.Materials and methodsFor this purpose, we performed MD simulations along 30 ns at three different reaction temperatures collected as NpT ensemble, and then monitored the backbone motion, flexibilities of residues, and intramolecular interactions of EG3_S2 and EG3_nat enzymes.ResultsAccording to MD results, we conclude that EG3_S2 and EG3_nat enzymes have unique RMSD patterns, e.g. RMSD pattern of EG3_S2 is more dynamic than that of EG3_nat at all temperatures. In addition to this dynamicity, EG3_S2 establishes more salt bridge interactions than EG3_nat.ConclusionBy taking these results into an account with the preservation of catalytic Glu residues in a proper manner, we explain the structural basis of differences between shuffled and native enzyme via molecular dynamic studies.

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