Mela M J
Biophys J. 1968 Jan;8(1):83-97. doi: 10.1016/S0006-3495(68)86476-8.
The elastic behavior of the cell wall as a function of the temperature has been studied with particular attention being given to the swelling of egg cells of Strongylocentrotus purpuratus and Crassostrea virginica in different sea water concentrations at different temperatures. It was found that the modulus of elasticity is a nonlinear function of temperature. At about 12-13 degrees C the modulus of elasticity (E) is constant, independent of the stress (sigma) and strain (epsilon(nu)) which exist at the cell wall; the membranous material follows Hooke's law, and E approximately 3 x 10(7) dyn/cm(2) for S. purpuratus and C. virginica. When the temperature is higher or lower than 12-13 degrees C, the modulus of elasticity increases, and the membranous material does not follow Hooke's law, but is almost directly proportional to the stresses existing at the cell wall. On increasing the stress, the function E(sigma) = E(sigma) approaches saturation. The corresponding stress-strain diagrams, sigma = sigma(epsilon(nu)), and the graphs, E(sigma) = E(sigma) and E(sigma) = E(t) are given. The cyto-elastic phenomena at the membrane are discussed.
细胞壁的弹性行为作为温度的函数已被研究，尤其关注了紫海胆和弗吉尼亚牡蛎卵细胞在不同温度下于不同海水浓度中的膨胀情况。研究发现，弹性模量是温度的非线性函数。在约12 - 13摄氏度时，弹性模量（E）是恒定的，与细胞壁处存在的应力（σ）和应变（εν）无关；膜状材料遵循胡克定律，对于紫海胆和弗吉尼亚牡蛎，E约为3×10⁷达因/厘米²。当温度高于或低于12 - 13摄氏度时，弹性模量增加，膜状材料不遵循胡克定律，而是几乎与细胞壁处存在的应力成正比。随着应力增加，函数E(σ) = E(σ)接近饱和。给出了相应的应力 - 应变图，σ = σ(εν)，以及E(σ) = E(σ)和E(σ) = E(t)的图表。讨论了膜处的细胞弹性现象。
