{"id":128479,"date":"2024-11-21T17:11:46","date_gmt":"2024-11-21T10:11:46","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=128479"},"modified":"2024-11-21T17:11:46","modified_gmt":"2024-11-21T10:11:46","slug":"heart-cockles-have-windows-in-their-shells-to-let-in-light-for-symbiotic-algae","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=128479","title":{"rendered":"Heart cockles have windows in their shells to let in light for symbiotic algae"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2024\/heart-cockles-found-to-2.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2024\/heart-cockles-found-to-2.jpg\" data-sub-html=\"Heart cockle shells in natural light (top row) and illuminated from within to show the transparent shell windows, which vary from little triangles to stripes to mosaics. Credit: Dakota McCoy\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2024\/heart-cockles-found-to-2.jpg\" alt=\"Heart cockles found to have windows in their shells to let in light for the algae living inside them\" title=\"Heart cockle shells in natural light (top row) and illuminated from within to show the transparent shell windows, which vary from little triangles to stripes to mosaics. Credit: Dakota McCoy\" width=\"800\" height=\"434\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Heart cockle shells in natural light (top row) and illuminated from within to show the transparent shell windows, which vary from little triangles to stripes to mosaics. Credit: Dakota McCoy<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>A team of marine biologists, ecologists and evolutionary specialists from the University of Chicago, Stanford University and Duke University has found that heart cockles have windows in their shells to allow in light needed by the algae that live inside the shells.<\/p>\n<p>In their <a href=\"https:\/\/phys.org\/tags\/paper\/\" rel=\"tag\" class=\"textTag\">paper<\/a> <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-53110-x\" target=\"_blank\" rel=\"noopener\">published<\/a> in the journal <i>Nature Communications<\/i>, the group describes their study of the mollusks and how their findings could be applied to fiber cable technology.<\/p>\n<p>Heart cockles are bivalve mollusks that resemble clams. And like clams, they have a <a href=\"https:\/\/phys.org\/tags\/symbiotic+relationship\/\" rel=\"tag\" class=\"textTag\">symbiotic relationship<\/a> with the algae that live inside their shells. In the relationship, the algae get food from the seawater that passes in and out of the <a href=\"https:\/\/phys.org\/tags\/shell\/\" rel=\"tag\" class=\"textTag\">shell<\/a>, and light, which is needed for photosynthesis. In return, the cockles get food when they eat the algae.<\/p>\n<p>Prior research has shown that most mollusk-dwelling algae get sunlight when the host opens wide, allowing in sunlight. But heart cockles do not open\u2014instead, as the researchers in this new effort have found, they allow <a href=\"https:\/\/phys.org\/tags\/sunlight\/\" rel=\"tag\" class=\"textTag\">sunlight<\/a> to pass through their shells courtesy of tiny windows.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2024\/heart-cockles-found-to-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2024\/heart-cockles-found-to-1.jpg\" data-sub-html=\"Photographs of heart cockles. Credit: Dakota McCoy\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2024\/heart-cockles-found-to-1.jpg\" alt=\"Heart cockles found to have windows in their shells to let in light for the algae living inside them\" title=\"Photographs of heart cockles. Credit: Dakota McCoy\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Photographs of heart cockles. Credit: Dakota McCoy<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>The researchers found that heart cockle shells are made from aragonite, which is a crystalline form of calcium carbonate. To form the windows, an organic matrix that controls growth forms the aragonite into elongated fibrous crystals. By contrast, in the shells&#8217; opaque regions, the aragonite is planar and crossed in orientation. Beneath the windows, the aragonite forms into bundled fiber optic cables that act as condensing lenses to focus light. Testing showed the structures allowed twice as much <a href=\"https:\/\/phys.org\/tags\/light\/\" rel=\"tag\" class=\"textTag\">light<\/a> to pass through as would be the case if they were just simple windows.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2024\/heart-cockles-found-to.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2024\/heart-cockles-found-to.jpg\" data-sub-html=\"The heart cockle shells project images through the transparent aragonite windows; here, they project ruler lines. Credit: Dakota McCoy\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2024\/heart-cockles-found-to.jpg\" alt=\"Heart cockles found to have windows in their shells to let in light for the algae living inside them\" title=\"The heart cockle shells project images through the transparent aragonite windows; here, they project ruler lines. Credit: Dakota McCoy\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                The heart cockle shells project images through the transparent aragonite windows; here, they project ruler lines. Credit: Dakota McCoy<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>The researchers also found that the <a href=\"https:\/\/phys.org\/tags\/natural+fibers\/\" rel=\"tag\" class=\"textTag\">natural fibers<\/a> block harmful UV rays that would kill the algae. They state that the natural fiber looked very much like artificial fiber cables, only without the cladding covering, which manufacturers add to communications fibers to protect them. They suggest the natural design used by the cockles could perhaps serve as inspiration for a cheaper way to make less-expensive artificial fiber cables.<\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tDakota E. McCoy et al, Heart cockle shells transmit sunlight to photosymbiotic algae using bundled fiber optic cables and condensing lenses, <i>Nature Communications<\/i> (2024). <a data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1038\/s41467-024-53110-x\" target=\"_blank\" rel=\"noopener\">DOI: 10.1038\/s41467-024-53110-x<\/a><\/p>\n<\/p><\/div>\n<p class=\"article-main__note mt-4\">\n\t\t\t\t\t\t\t\t\t\t\t\t  \u00a9 2024 Science X Network\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n<p>\t\t\t\t\t\t\t\t\t\t<!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n\t\t\t\t\t\t\t\t\t\t\t\t<strong>Citation<\/strong>:<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tHeart cockles have windows in their shells to let in light for symbiotic algae (2024, November 20)<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tretrieved 21 November 2024<br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tfrom https:\/\/phys.org\/news\/2024-11-heart-cockles-windows-shells-symbiotic.html\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n<p>\n\t\t\t\t\t\t\t\t\t\t\t This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n\t\t\t\t\t\t\t\t\t\t\t part may be reproduced without the written permission. The content is provided for information purposes only.\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><br \/>\n<br \/><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/phys.org\/news\/2024-11-heart-cockles-windows-shells-symbiotic.html\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Heart cockle shells in natural light (top row) and illuminated from within to show the transparent shell windows, which vary from little triangles to stripes to mosaics. Credit: Dakota McCoy &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=128479\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-128479","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/128479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=128479"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/128479\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=128479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=128479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=128479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}