{"id":9611,"date":"2020-06-17T11:28:00","date_gmt":"2020-06-17T08:28:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/limpet-sticking-power-down-to-mucus-not-muscle\/"},"modified":"2020-06-17T11:28:00","modified_gmt":"2020-06-17T08:28:00","slug":"limpet-sticking-power-down-to-mucus-not-muscle","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/limpet-sticking-power-down-to-mucus-not-muscle\/","title":{"rendered":"#Limpet sticking power down to mucus, not muscle"},"content":{"rendered":"

“#Limpet sticking power down to mucus, not muscle<\/strong>”<\/p>\n

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\"Pincers<\/img>
\n Pincers lift a limpet, and the rock that the shallow-water sea snail is clinging to
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Limpets\u2014those coin-sized, suction-cup critters with conical caps\u2014have had the experts fooled all along.<\/p>\n

\n <\/section>\n

For more than a century, scientists have assumed that their out-sized ability to clamp onto tide-pool rocks in defiance of bare-handed attempts to pry them off was due mostly to muscle power.<\/p>\n

Some South African limpets, one study showed, could withstand up to 100 kilos (220 pounds) of force.
\n“If you managed to convince a limpet like that to attach to your ceiling, it could probably hold your weight,” Victor Kang, a doctoral candidate in the Department of Zoology and the University of Cambridge, told AFP.
\nBut that prodigious bonding power does not come primarily from suction (muscle contraction), nor clamping (muscles forcing the animal’s thin hard shell against the rock to provide added friction).
\nThe secret, according to a study published Wednesday in the Royal Society journal Open Biology<\/i>, is a super-glue slime secreted from a limpet’s pedal sole, the bottom of its rubbery body.
\n“It is normally difficult to adhere strongly to wet and slippery surfaces, but limpets and some other marine animals manage to do just that using special bio-adhesives,” Kang, lead author of the study, told AFP.
\n“The amount of muscle-driven suction is small and cannot account for their high attachment strength.”
\nKang’s study it the first to exhaustively catalogue all the ingredients of the mucus secreted by nine glands found in the pedal sole of Patella vulgata, or the common limpet.
\nLimpets on the move<\/b>
\nHe and his team found no less than 171 protein sequences, along with a lesser number of sugar molecules.
\nFiguring out what these glue-like substances are made of and how they work could one day inspire synthetic adhesives\u2014for medicine or food\u2014that keep their sticking power in water and are biodegradable, Kang said.
\nLimpets have been around for some 450 million years, and chances are they will still be clinging to rocks and foraging for tiny bits of algae long after our species has moved on.
\nRemarkably, limpets\u2014which can range in size from the head of a thumbtack to 10 centimetres (four inches) across\u2014can travel<\/a> considerable distances when feeding underwater. When exposed at low-tide, they stay put.
\nStill unresolved is the mystery of how a limpet relaxing on a rock can secrete its chemical glue almost the instant a would-be predator attempts to push it from its perch.
\nNor is it known how\u2014or how quickly\u2014that liquid lock can be dissolved once the danger has passed, or the limpet is under water.
\nLike all gastropods, or sea snails, its muscle-bound “foot” is in fact a complex animal with a digestive tract, teeth, eyes and organs.
\nIn naval warfare, limpet mines are explosive devices attached to a ship with powerful magnets.
\nBut they’re probably not as powerful as a limpet’s super-glue.<\/p>\n

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More information:<\/strong>
\n Victor Kang et al. Molecular insights into the powerful mucus-based adhesion of limpets ( Patella vulgata L.), Open Biology<\/i> (2020). DOI: 10.1098\/rsob.200019\n <\/div>\n

\u00a9 2020 AFP<\/p>\n

\n Citation<\/strong>:
\n Limpet sticking power down to mucus, not muscle (2020, June 17)
\n retrieved 17 June 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-06-limpet-power-mucus-muscle.html<\/p>\n

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n

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“#Limpet sticking power down to mucus, not muscle” Pincers lift a limpet, and the rock that the shallow-water sea snail is clinging to Limpets\u2014those coin-sized, suction-cup critters with conical caps\u2014have had the experts fooled all along. For more than a century, scientists have assumed that their out-sized ability to clamp onto tide-pool rocks in defiance…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[20222,20224,20223,10649,20225],"class_list":["post-9611","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-limpet-sticking-power-down-to-mucus","tag-limpets-those-coin-sized","tag-not-muscle","tag-plants-animals","tag-suction-cup-critters-with-conical-caps-have-had-the-experts-fooled-all-along"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/9611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=9611"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/9611\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=9611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=9611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=9611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}