Applied Microscopy

  • 제51권
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  • Pages.11.1-11.9
  • /
  • 2021
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  • 2287-5123(pISSN)
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  • 2287-4445(eISSN)
한국현미경학회 (Korean Society of Microscopy)
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Capture silk scaffold production in the cribellar web spider

  • Yan Sun (Department of Biological Sciences, Dankook University) ;
  • Seung-Min Lee (Department of Biological Sciences, Dankook University) ;
  • Bon-Jin Ku (Department of Biological Sciences, Dankook University) ;
  • Eun-Ah Park (Department of Biological Sciences, Dankook University) ;
  • Myung-Jin Moon (Department of Biological Sciences, Dankook University)
  • 투고 : 2021.04.29
  • 심사 : 2021.07.04
  • 발행 : 2021.12.31
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초록

Spider capture silk is a natural scaffolding material that outperforms most synthetic materials in terms of its combination of strength and elasticity. Among the various kinds of silk threads, cribellar thread is the most primitive prey-capturing type of spider web material. We analyzed the functional organization of the sieve-like cribellum spigots and specialized calamistral comb bristles for capture thread production by the titanoecid spider Nurscia albofasciata. The outer cribellar surface is covered with thousands of tiny spigots, and the cribellar plate produces non-sticky threads composed of thousands of fine nanofibers. N. albofasciata cribellar spigots are typically about 10 ㎛ long, and each spigot appears as a long individual shaft with a pagoda-like tiered tip. The five distinct segments comprising each spigot is a defining characteristic of this spider. This segmented and flexible structure not only allows for spigots to bend individually and join with adjacent spigots, but it also enables spigots to draw the silk fibrils from their cribella with rows of calamistral leg bristles to form cribellar prey-capture threads.

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과제정보

This research was supported by the National Research Foundation (NRF) of Korea funded by the Ministry of Education (NRF-2014R1A1A2056398) and the Korea government (MSIT) (NRF-2019R1I1A3A01062105).

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