An analytic model of the self-sealing mechanism of the succulent plant Delosperma cooperi
An analytic model of the self-sealing mechanism of the succulent plant Delosperma cooperi
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DOI：
10.1016/j.jtbi.2013.07.013
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发表时间：
2013-11-07
影响因子：
2
通讯作者：
Speck, Olga
中科院分区：
文献类型：
--
作者：
Konrad, Wilfried;Flues, Felix;Speck, Olga
受伤后，多肉植物 Delosperma cooperi 的叶子会通过整个叶子的变形和移动在 30-60 分钟的时间内完成伤口愈合。在横截面中，几乎圆柱形的叶子显示出五种不同组织类型的向心排列。基于代表不同组织层的五个船体的解剖数据和机械分析，我们提出了一个描述自密封过程的分析模型。将粘弹性方面纳入模型能够预测自密封过程的时间发展。根据闭合函数制定模型有助于：（i）敏感性研究和（ii）将模型转移到基于非生物材料的技术系统。 (C) 2013 Elsevier Ltd. 保留所有权利。
After an injury, wound-sealing in leaves of the succulent plant Delosperma cooperi takes place by deformation and movement of the entire leaf within a time span of 30-60 min. In cross sections the almost cylindrical leaves reveal a centripetal arrangement of five different tissue types. Based on anatomical data and mechanical analyses of the five hulls, representing the different tissue layers, we present an analytical model describing the self-sealing process. The inclusion of viscoelastic aspects into the models enables to predict the temporal development of the self-sealing process.The formulation of the model in terms of closed functions facilitates: (i) sensitivity studies and (ii) the transfer of the model to technical systems which are based on non-biological materials. (C) 2013 Elsevier Ltd. All rights reserved.