Variability in the mechanical properties of spider silks on three levels: interspecific, intraspecific and intraindividual
Variability in the mechanical properties of spider silks on three levels: interspecific, intraspecific and intraindividual
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DOI：
10.1016/s0141-8130(98)00094-4
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发表时间：
1999-03-01
影响因子：
8.2
通讯作者：
Vollrath, F
中科院分区：
文献类型：
--
作者：
Madsen, B;Shao, ZZ;Vollrath, F
从Argiopidae，Tetragnathidae，Theridididae和Pisauridae蜘蛛的范围内收集的拖丝的机械特性表现出显着的种间和种内差异。同一物种的拖丝可能表现出相当大的变异性，可能取决于蜘蛛的条件;饥饿，例如，导致断裂伸长率下降，在可食黄粉虫。环境条件，如缫丝速度影响丝绸性能，如（i）断裂伸长率下降，（ii）断裂应力增加和（iii）杨氏模量增加缫丝速度的增加。然而，N. edulis和圆腹园蛛对缫丝速度处理的反应不同，这表明它们的蚕丝基本性能存在差异。(C)1999 Elsevier Science B. V.保留所有权利。
The mechanical characteristics of dragline silks collected from a range of spiders drawn from the Argiopidae, Tetragnathidae, Theridiidae and Pisauridae displayed significant inter- and intraspecific differences. Dragline silks of the same species could show considerable variability probably dependent upon spider condition; starvation, for example, lead to decreased breaking elongation in Nephila edulis. Environmental conditions such as reeling speed affected silk properties such that (i) breaking elongation decreased, (ii) breaking stress increased and (iii) Young's modulus increased with increasing reeling speed. However, N. edulis and Araneus diadematus responded differently to the reeling speed treatments suggesting differences in basic silk properties. (C) 1999 Elsevier Science B.V. All rights reserved.