Positive Effects of Acclimation Temperature on the Critical Thermal Maxima of Ambystoma mexicanum and Xenopus laevis

2020 ◽  
Vol 54 (3) ◽  
Author(s):  
Alex C. Orille ◽  
Ryan B. McWhinnie ◽  
Sean P. Brady ◽  
Thomas R. Raffel
Keyword(s):  
Xenopus Laevis ◽  
Ambystoma Mexicanum ◽  
Acclimation Temperature ◽  
Positive Effects ◽  
Critical Thermal Maxima

Electron Microscopy of the Amphibian Model Systems Xenopus laevis and Ambystoma mexicanum

2010 ◽  
pp. 395-423 ◽  
Author(s):  
Thomas Kurth ◽  
Jürgen Berger ◽  
Michaela Wilsch-Bräuninger ◽  
Susanne Kretschmar ◽  
Robert Cerny ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Xenopus Laevis ◽  
Ambystoma Mexicanum ◽  
Model Systems

Seasonal changes in the critical thermal maxima of fantail (Etheostoma flabellare), greenside (Etheostoma blennioides), and rainbow (Etheostoma caeruleum) darters

1985 ◽  
Vol 63 (7) ◽  
pp. 1629-1633 ◽  
Author(s):  
Ihor Hlohowskyj ◽  
Thomas E. Wissing
Keyword(s):  
Seasonal Changes ◽  
Acclimation Temperature ◽  
Seasonal Differences ◽  
Etheostoma Flabellare ◽  
Significant Relationships ◽  
Critical Thermal Maxima ◽  
Etheostoma Blennioides ◽  
Fantail Darter ◽  
Rainbow Darter ◽  
Etheostoma Caeruleum

Seasonal critical thermal maxima (CTMax) were determined for greenside (Etheostoma blennioides), fantail (Etheostoma flabellare), and rainbow (Etheostoma caeruleum) darters. Mean CTMax values for field-acclimatized greenside darters ranged from 26.2 °C in March to 35.1 °C in September. The values for fantail and rainbow darters were 30.8–36.0 °C (March–July) and 30.0–36.4 °C (April–July), respectively. CTMax values for the three species were significantly correlated (P < 0.05) with field water temperature (greenside darter, r = 0.970; rainbow darter, r = 0.964; fantail darter, r = 0.968). Fish acclimated at 10 and 20 °C in the laboratory exhibited significant seasonal changes in CTMax, with the highest values occurring in the summer. Except for fantail darters tested in summer, the three species showed significant relationships between CTMax and acclimation temperature. Seasonal differences were also observed in the slopes of the relationships between CTMax and acclimation temperature. The highest slopes occurred in spring, autumn, or both. Differences in the tolerance of darters to high temperatures and adjustment of tolerance to high temperature may influence their distributions in streams.

scholarly journals Acclimation temperature influences the critical thermal maxima (CTmax) of red-spotted grouper

2021 ◽  
Vol 24 (7) ◽  
pp. 235-242
Author(s):  
Md Mofizur Rahman ◽  
Young-Don Lee ◽  
Hea Ja Baek
Keyword(s):  
Acclimation Temperature ◽  
Critical Thermal Maxima

Vitamin A inhibits amphibian tail regeneration

1987 ◽  
Vol 65 (2) ◽  
pp. 457-459 ◽  
Author(s):  
Steven R. Scadding
Keyword(s):  
Retinoic Acid ◽  
Vitamin A ◽  
Xenopus Laevis ◽  
Ambystoma Mexicanum ◽  
Complete Inhibition ◽  
Notophthalmus Viridescens ◽  
Tail Regeneration ◽  
Dose Levels ◽  
Dose Dependent

The objective of this investigation was to determine what effect vitamin A had on tail regeneration in Notophthalmus viridescens adults, in Ambystoma mexicanum larvae, and in Xenopus laevis tadpoles. Notophthalmus viridescens and Ambystoma mexicanum had their tails amputated and then were treated with retinol palmitate by immersion in concentrations known to cause proximodistal duplications in regenerating limbs. Xenopus laevis tadpoles had their tails amputated and then were treated with either retinol palmitate by immersion, or with retinoic acid administered by implantation of silastin blocks containing retinoic acid. The results ranged from no effect at all at the lower dose levels used, to complete inhibition of tail regeneration at higher dose levels. The degree of inhibition of tail regeneration appeared to be dose dependent. In no case were any duplicated or accessory structures formed analogous to those observed in regenerating limbs. This result suggests that the morphogenetic processes involved in tail regeneration are at least in some ways different from those occurring in limbs, where a similar vitamin A treatment would cause proximodistal duplication or production of accessory limb structures.

Comparative research on morphology and mechanical property of integument of Rana dybowskii, Xenopus laevis and Ambystoma mexicanum

2021 ◽  
Vol 117 ◽  
pp. 104382
Author(s):  
Mo Li ◽  
Zibo Gao ◽  
Taidong Dai ◽  
Donghui Chen ◽  
Jin Tong ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Xenopus Laevis ◽  
Comparative Research ◽  
Ambystoma Mexicanum ◽  
Rana Dybowskii
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