Mechanical buckling can pattern the light-diffracting cuticle of Hibiscus trionum.
Mechanical buckling can pattern the light-diffracting cuticle of Hibiscus trionum.
复制标题
机械弯曲可以使木槿的光衍射角质层图案化。
DOI:
10.1016/j.celrep.2021.109715
复制
发表时间:
2021-09-14
期刊:
影响因子:
8.8
通讯作者:
Robinson, Sarah
中科院分区:
文献类型:
--
作者:
Airoldi, Chiara A.;Lugo, Carlos A.;Wightman, Raymond;Glover, Beverley J.;Robinson, Sarah
Many species have cuticular striations that play a range of roles, from pollinator attraction to surface wettability. In Hibiscus trionum, the striations span multiple cells at the base of the petal to form a pattern that produces a type of iridescence. It is postulated, using theoretical models, that the pattern of striations could result from mechanical instabilities. By combining the application of mechanical stress with high-resolution imaging, we demonstrate that the cuticle buckles to create a striated pattern. Through mechanical modeling and cryo-SEM fractures, we show that the cuticle behaves like a bilayer system with a stiff film on a compliant substrate. The pattern of buckling aligns with the direction of the stress to create a larger-scale pattern. Our findings contribute to the understanding of the formation of tissue-wide patterns in living organisms. Light-diffracting cuticular nano-wrinkles can be mechanically induced The direction of the striations aligns with the force direction Striation formation requires layers with different mechanical properties Cuticular striations on hibiscus petals form a coordinated pattern that creates iridescence. Airoldi et al. show that the striations can form by mechanical-stress-induced buckling and demonstrate the role of cuticular layers in this process.
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DOI:
10.1242/dev.127613
发表时间:
2015-12-01
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Kurihara D;Mizuta Y;Sato Y;Higashiyama T
通讯作者:
Higashiyama T
影响因子:
9.3
作者:
Hiscock TW;Megason SG
通讯作者:
Megason SG
影响因子:
5.3
作者:
Budday S;Steinmann P;Kuhl E
通讯作者:
Kuhl E
影响因子:
3.4
作者:
Huang, Xiao;Hai, Yu;Xie, Wei-Hua
通讯作者:
Xie, Wei-Hua
影响因子:
9.2
作者:
Nakayama, Naomi;Smith, Richard S.;Kuhlemeier, Cris
通讯作者:
Kuhlemeier, Cris