Temporal and spatial distribution patterns of toothed whales in Massachusetts Bay using passive acoustics from ocean gliders

2017 ◽  
Vol 141 (5) ◽  
pp. 3941-3941
Author(s):  
Tammy Silva ◽  
T. Aran Mooney ◽  
Laela Sayigh ◽  
Mark F. Baumgartner
Keyword(s):  
Spatial Distribution ◽  
Distribution Patterns ◽  
Massachusetts Bay ◽  
Temporal And Spatial Distribution ◽  
Passive Acoustics ◽  
Spatial Distribution Patterns ◽  
Temporal And Spatial

Temporal distribution, localization and metabolism of all-trans-retinol, didehydroretinol and all-trans-retinal during Xenopus development

1994 ◽  
Vol 301 (1) ◽  
pp. 111-119 ◽  
Author(s):  
J Creech Kraft ◽  
T Schuh ◽  
M R Juchau ◽  
D Kimelman
Keyword(s):  
Spatial Distribution ◽  
Retinoic Acid ◽  
Distribution Patterns ◽  
Retinoid Receptor ◽  
Temporal And Spatial Distribution ◽  
Spatial Distribution Patterns ◽  
Xenopus Embryos ◽  
Trans Retinoic Acid ◽  
All Trans Retinoic Acid ◽  
Temporal And Spatial

Recently, the temporal and spatial distribution patterns of the retinoid receptor ligands 9-cis-retinoic acid and all-trans-retinoic acid were described in Xenopus embryos during early development [Creech Kraft, Schuh, Juchau and Kimelman (1994) Proc. Natl. Acad. Sci. U.S.A., in the press]. The present study demonstrates the presence and distribution of their likely precursors, all-trans-retinol, didehydroretinol, didehydroretinal and all-trans-retinal, as well as the occurrence of 4-oxo metabolites, in Xenopus embryos. The temporal and spatial distribution patterns of all-trans-retinol, didehydroretinol and all-trans-retinal did not coincide with that observed for 9-cis-retinoic acid but, in certain regards, were similar to the patterns delineated for all-trans-retinoic acid and all-trans-retinoyl beta-glucuronide. Evidence is presented that 9-cis-retinoic acid can be synthesized from both all-trans-retinoic acid and all-trans-retinol in Xenopus embryos, suggesting that the difference between the distributions of 9-cis-retinoic acid and the other retinoids may be caused by selective synthesis and/or protein binding of the 9-cis isomer.

Sign in / Sign up

Export Citation Format

Share Document