scholarly journals The likely effects of thermal climate change on vertebrate skeletal muscle mechanics with possible consequences for animal movement and behaviour

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Rob S James ◽  
Jason Tallis
Keyword(s):  
Climate Change ◽  
Skeletal Muscle ◽  
Animal Movement ◽  
Muscle Mechanics ◽  
Local Extinction ◽  
Thermal Climate ◽  
Vertebrate Skeletal Muscle

Changes in temperature, caused by climate change, can alter the amount of power an animal’s muscle produces, which could in turn affect that animal’s ability to catch prey or escape predators. Some animals may cope with such changes, but other species could undergo local extinction as a result.

scholarly journals The molecular basis for sarcomere organization in vertebrate skeletal muscle

Cell ◽  
2021 ◽  
Vol 184 (8) ◽  
pp. 2135-2150.e13
Author(s):  
Zhexin Wang ◽  
Michael Grange ◽  
Thorsten Wagner ◽  
Ay Lin Kho ◽  
Mathias Gautel ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Molecular Basis ◽  
Vertebrate Skeletal Muscle

Dantrolene Sodium: Effects on Crustacean Muscle

1974 ◽  
Vol 52 (4) ◽  
pp. 887-890 ◽  
Author(s):  
L. L. Odette ◽  
H. L. Atwood
Keyword(s):  
Skeletal Muscle ◽  
Electrical Properties ◽  
Neuromuscular Transmission ◽  
Contractile Response ◽  
Callinectes Sapidus ◽  
Muscle Membrane ◽  
Dantrolene Sodium ◽  
Muscle Contractile ◽  
Indirect Stimulation ◽  
Vertebrate Skeletal Muscle

The effect of dantrolene sodium, a muscle relaxant effective on vertebrate skeletal muscle, has been studied on the stretcher muscle of a crab (Callinectes sapidus). The drug rapidly and reversibly attenuates the muscle contractile response to direct and indirect stimulation. Neuromuscular transmission is unaffected, as are the electrical properties of the muscle membrane. It is concluded that dantrolene sodium uncouples excitation–contraction mechanisms in crustacean tonic muscle.

It takes all kinds: heterogeneity among satellite cells and fibro-adipogenic progenitors during skeletal muscle regeneration

Development ◽  
2021 ◽  
Vol 148 (21) ◽  
Author(s):  
Brittany C. Collins ◽  
Gabrielle Kardon
Keyword(s):  
Skeletal Muscle ◽  
Satellite Cells ◽  
Regenerative Process ◽  
Skeletal Muscle Regeneration ◽  
Anatomical Location ◽  
Muscle Stem Cells ◽  
Functional Consequences ◽  
Transplantation Experiments ◽  
Complete Regeneration ◽  
Vertebrate Skeletal Muscle

ABSTRACT Vertebrate skeletal muscle is composed of multinucleate myofibers that are surrounded by muscle connective tissue. Following injury, muscle is able to robustly regenerate because of tissue-resident muscle stem cells, called satellite cells. In addition, efficient and complete regeneration depends on other cells resident in muscle – including fibro-adipogenic progenitors (FAPs). Increasing evidence from single-cell analyses and genetic and transplantation experiments suggests that satellite cells and FAPs are heterogeneous cell populations. Here, we review our current understanding of the heterogeneity of satellite cells, their myogenic derivatives and FAPs in terms of gene expression, anatomical location, age and timing during the regenerative process – each of which have potentially important functional consequences.

Local extinction risk of three species of lizard from Patagonia as a result of global warming

2016 ◽  
Vol 94 (1) ◽  
pp. 49-59 ◽  
Author(s):  
E.L. Kubisch ◽  
V. Corbalán ◽  
N.R. Ibargüengoytía ◽  
B. Sinervo
Keyword(s):  
Climate Change ◽  
Extinction Risk ◽  
Physiological Model ◽  
Single Equation ◽  
Reproductive Period ◽  
Local Extinction ◽  
Physiological Constraints ◽  
Local Warming ◽  
Environmental Temperatures ◽  
Impacts Of Climate Change

Recently, Sinervo et al. (2010, Science, 328: 894–899) reported declines of lizard biodiversity due to local warming trends and altered thermal niches. Herein, we applied the Sinervo et al. (2010) physiological model to predict the local extinction risk of three species of lizard from Patagonia. Whereas the previous model used a single equation (for the extinctions of Blue Spiny Lizard (Sceloporus serrifer Cope, 1866) in the Yucatan Peninsula) relating environmental temperatures (Te) to hours of restriction (i.e., the period when lizards are forced into retreat sites because environmental temperatures are too high), we measured habitat-specific equations for the Te values of each species. We analyzed the vulnerability of Darwin’s Ground Gecko (Homonota darwinii Boulenger, 1885), Bariloche Lizard (Liolaemus pictus (Duméril and Bibron, 1837)), and Mountain Slope Lizard (Liolaemus elongatus Koslowsky, 1896) to climate change considering thermal physiological constraints on activity during the reproductive period. While Sinervo et al. (2010) predicted that the Phyllodactylidae family will not suffer from impacts of climate change, our physiological model predicted that 20% of the H. darwinii populations could become extinct by 2080. The physiological model also predicted that 15% of L. pictus populations and 26.5% of L. elongatus populations could become extinct by 2080. The most vulnerable populations are those located near the northern and eastern boundaries of their distributions.

Sign in / Sign up

Export Citation Format

Share Document