title: [Reaction of isolated muscle tissue from different frog species to experimental heat tempering. I. Effect of temperature].
abstract: A study was made of changes in the heat resistance of isolated m. sartorius of Rana temporaria L. caused by a 15 minutes exposure to 34 degrees. The hardening effect of heating resulted in a 22.2% increase in the average heat resistance level of muscles (P less than 0.001). This increase was due to non-uniform and even opposite directed changes in the heat resistance levels of muscles of different individuals. Thus, in 81% of muscles their heat resistance increased on average by 27.7%, whereas in 14.3% of muscle the heat resistance decreased on average by 18.7%. These results, as well as the analysis of correlation coefficients between the initial resistance levels of muscles, taken from different individuals, and their changes caused by the hardening enabled us to detect an inverse functional relation between these indices.
mesh_terms: D000064:Acclimatization; D000818:Animals; D001001:Anura; D006358:Hot Temperature; D066298:In Vitro Techniques; D008297:Male; D009132:Muscles / Q000502:physiology*; D011896:Rana temporaria; D013045:Species Specificity; D013696:Temperature
vernacular_title: Reaktsiia izolirovannoĭ myshechnoĭ tkani raznykh osobeĭ liagushek na zakalivaiushchee éksperimental'noe vozdeĭstvie. I. Deĭstvie temperatury.