Waterborne iron acquisition by a freshwater teleost fish, zebrafish Danio rerio

2003 ◽  
Vol 206 (19) ◽  
pp. 3529-3535 ◽  
Author(s):  
N. R. Bury
Keyword(s):  
Danio Rerio ◽  
Teleost Fish ◽  
Iron Acquisition ◽  
Freshwater Teleost

Cultures of glial cells from optic nerve of two adult teleost fish: Astatotilapia burtoni and Danio rerio

2021 ◽  
Vol 353 ◽  
pp. 109096
Author(s):  
Laura DeOliveira-Mello ◽  
Andreas F. Mack ◽  
Juan M. Lara ◽  
Rosario Arévalo
Keyword(s):  
Optic Nerve ◽  
Glial Cells ◽  
Danio Rerio ◽  
Teleost Fish ◽  
Astatotilapia Burtoni

Galectins in teleost fish: Zebrafish (Danio rerio) as a model species to address their biological roles in development and innate immunity

2004 ◽  
Vol 21 (8-9) ◽  
pp. 503-521 ◽  
Author(s):  
Gerardo R. Vasta ◽  
Hafiz Ahmed ◽  
Shao- J. Du ◽  
Davin Henrikson
Keyword(s):  
Innate Immunity ◽  
Danio Rerio ◽  
Teleost Fish ◽  
Model Species

scholarly journals The peptide transporter 1a of the zebrafish Danio rerio, an emerging model in nutrigenomics and nutrition research: molecular characterization, functional properties, and expression analysis

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Francesca Vacca ◽  
Amilcare Barca ◽  
Ana S. Gomes ◽  
Aurora Mazzei ◽  
Barbara Piccinni ◽  
...  
Keyword(s):  
Danio Rerio ◽  
Teleost Fish ◽  
Amino Acid Level ◽  
Peptide Transporter ◽  
Gene Repertoire ◽  
Adult Fish ◽  
Solute Carrier Family ◽  
Genome Duplication Event ◽  
Nutrition Research ◽  
Solute Carrier

Abstract Background Peptide transporter 1 (PepT1, alias Slc15a1) mediates the uptake of dietary di/tripeptides in all vertebrates. However, in teleost fish, more than one PepT1-type transporter might function, due to specific whole genome duplication event(s) that occurred during their evolution leading to a more complex paralogue gene repertoire than in higher vertebrates (tetrapods). Results Here, we describe a novel di/tripeptide transporter in the zebrafish (Danio rerio), i.e., the zebrafish peptide transporter 1a (PepT1a; also known as Solute carrier family 15 member a1, Slc15a1a), which is a paralogue (78% similarity, 62% identity at the amino acid level) of the previously described zebrafish peptide transporter 1b (PepT1b, alias PepT1; also known as Solute carrier family 15 member 1b, Slc15a1b). Also, we report a basic analysis of the pept1a (slc15a1a) mRNA expression levels in zebrafish adult tissues/organs and embryonic/early larval developmental stages. As assessed by expression in Xenopus laevis oocytes and two-electrode voltage clamp measurements, zebrafish PepT1a, as PepT1b, is electrogenic, Na+-independent, and pH-dependent and functions as a low-affinity system, with K0.5 values for Gly-Gln at − 60 mV of 6.92 mmol/L at pH 7.6 and 0.24 mmol/L at pH 6.5 and at − 120 mV of 3.61 mmol/L at pH 7.6 and 0.45 mmol/L at pH 6.5. Zebrafish pept1a mRNA is highly expressed in the intestine and ovary of the adult fish, while its expression in early development undergoes a complex trend over time, with pept1a mRNA being detected 1 and 2 days post-fertilization (dpf), possibly due to its occurrence in the RNA maternal pool, decreasing at 3 dpf (~ 0.5-fold) and increasing above the 1–2 dpf levels at 4 to 7 dpf, with a peak (~ 7-fold) at 6 dpf. Conclusions We show that the zebrafish PepT1a-type transporter is functional and co-expressed with pept1b (slc15a1b) in the adult fish intestine. Its expression is also confirmed during the early phases of development when the yolk syncytial layer is present and yolk protein resorption processes are active. While completing the missing information on PepT1-type transporters function in the zebrafish, these results open to future investigations on the similar/differential role(s) of PepT1a/PepT1b in zebrafish and teleost fish physiology.

Prolactin-releasing peptide is essential to maintain the prolactin level and osmotic balance in freshwater teleost fish

Peptides ◽  
2006 ◽  
Vol 27 (5) ◽  
pp. 1104-1109 ◽  
Author(s):  
Masaaki Fujimoto ◽  
Tatsuya Sakamoto ◽  
Tomokazu Kanetoh ◽  
Michiyo Osaka ◽  
Shunsuke Moriyama
Keyword(s):  
Teleost Fish ◽  
Prolactin Level ◽  
Freshwater Teleost ◽  
Osmotic Balance ◽  
Prolactin Releasing Peptide

Structural and functional characterization of neuromedin S in the teleost fish, zebrafish (Danio rerio)

2016 ◽  
Vol 191 ◽  
pp. 76-83 ◽  
Author(s):  
Huapu Chen ◽  
Hongxin Huang ◽  
Xinggui Chen ◽  
Siping Deng ◽  
Chunhua Zhu ◽  
...  
Keyword(s):  
Danio Rerio ◽  
Teleost Fish ◽  
Functional Characterization

Diel patterns of baseline glucocorticoids and stress responsiveness in a teleost fish (bluegill, Lepomis macrochirus)

2014 ◽  
Vol 92 (5) ◽  
pp. 417-421 ◽  
Author(s):  
A. Cousineau ◽  
J.D. Midwood ◽  
K. Stamplecoskie ◽  
G. King ◽  
C.D. Suski ◽  
...  
Keyword(s):  
Teleost Fish ◽  
Lepomis Macrochirus ◽  
Freshwater Teleost ◽  
Diel Patterns ◽  
Baseline Cortisol ◽  
Maximum Value ◽  
Stress Responsiveness ◽  
In The Wild ◽  
Time Periods ◽  
Glucose Responsiveness

Little is known about whether glucocorticoids (GC) and GC responsiveness vary on a diel basis in the wild, especially for fish. Using bluegill (Lepomis macrochirus Rafinesque, 1819) as a model freshwater teleost fish, we tested whether baseline concentration and stress responsiveness of GCs (i.e., plasma glucose and cortisol) varied over a 24 h period. Blood samples from lake-dwelling wild bluegill were obtained across six periods representing a complete circadian cycle to determine GC levels in newly captured fish (i.e., within 3 min of capture; baseline), the maximum value (maximum) 45 min following exposure to a standardized aerial exposure stressor, and determining responsiveness (by subtracting minimum from maximum). Our results revealed that baseline glucose concentration did not vary on a diel basis, whereas baseline cortisol concentration did. Maximum and stress-induced glucose responsiveness varied significantly among several time periods with lowest values recorded at midnight and higher values at mid-day. Maximum and stress-induced cortisol responsiveness were consistent across time periods. Collectively, these data suggest that baseline concentrations and stress-induced values of GCs in a freshwater temperate teleost fish tend to be consistent across diel periods such that there is apparently an absence of strong GC diel patterns.

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