{"id":317,"date":"2021-12-19T17:31:59","date_gmt":"2021-12-19T16:31:59","guid":{"rendered":"https:\/\/michelecrevecoeur.ch\/?page_id=317"},"modified":"2021-12-19T17:34:08","modified_gmt":"2021-12-19T16:34:08","slug":"sclerenchyma-fibers","status":"publish","type":"page","link":"https:\/\/michelecrevecoeur.ch\/?page_id=317","title":{"rendered":"Sclerenchyma: fibers"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"317\" class=\"elementor elementor-317\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-53360794 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53360794\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-154ecc92\" data-id=\"154ecc92\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62128bfa elementor-widget elementor-widget-text-editor\" data-id=\"62128bfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400; text-align: center;\"><span style=\"color: #003366; font-size: medium;\"><strong>Sclerenchyma : fibers<\/strong><\/span><\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\">Lignified fibers (to distinguish from cellulosic fibers) commonly occur in groups forming strands associated to vascular bundles in the stem. They are also found in \u201cthick\u201d leaves. They have a thick secondary lignified wall, and they are dead at maturity without protoplasm.<\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\">Two examples are shown on this page: parts of cross sections in a stem of a\u00a0<em>Viscum<\/em>\u00a0and in a leaf of holly<\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\">1\/ Part of a cross section in a stem of\u00a0<em>Viscum album<\/em>\u00a0(see\u00a0<strong><a style=\"background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; text-decoration-line: none;\" title=\"Viscum Stem\" href=\"https:\/\/www.unige.ch\/sciences\/biologie\/bioveg\/crevecoeur\/en\/anatomy\/stem-anatomy\/viscum-stem\/\">stem anatomy<\/a>)<\/strong>\u00a0stained with toluidine blue. In the first micrograph we observe two vascular bundles with strands of fibres (F) at both extremities. They are less numerous at the extremity located toward the center of the stem. The second micrograph shows the vascular bundle at higher magnification.<\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\">Scale: 500 \u03bcm; 100 \u03bcm (below).<\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\"><img fetchpriority=\"high\" decoding=\"async\" style=\"border-width: 0px; border-style: initial; display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/www.unige.ch\/sciences\/biologie\/bioveg\/crevecoeur\/files\/cache\/689d56b6df091c49238064b6e4cf2894_f209.jpg\" alt=\"Fibres Tige gui\" width=\"650\" height=\"584\" \/><\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\"><img decoding=\"async\" style=\"border-width: 0px; border-style: initial; display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/www.unige.ch\/sciences\/biologie\/bioveg\/crevecoeur\/files\/cache\/7c61a60a47c754e1b538cd1306913d65_f210.jpg\" alt=\"Fibres Tige gui Bl Tol 20x.jpg\" width=\"650\" height=\"496\" \/><\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\">2\/ Part of a paraffin cross section through a leaf of\u00a0<em>Ilex aquifolium<\/em>\u00a0stained with safranin \u2013 alcian blue (See anatomy of\u00a0<strong><a style=\"background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; text-decoration-line: none;\" title=\"Holly leaf\" href=\"https:\/\/www.unige.ch\/sciences\/biologie\/bioveg\/crevecoeur\/en\/anatomy\/anatomie-feuilles\/feuille-de-houx\/\">holly leaf<\/a><\/strong>) with strands of fibres\u00a0<span style=\"color: #ff0000;\">(F<\/span>). pl: spongy parenchyma.<\/p><p style=\"margin-top: 15px; margin-bottom: 15px; line-height: 25.2px; color: #404040; font-family: arial; font-size: 14px; font-style: normal; font-weight: 400;\"><img decoding=\"async\" style=\"border-width: 0px; border-style: initial; display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/www.unige.ch\/sciences\/biologie\/bioveg\/crevecoeur\/files\/8514\/6056\/3172\/Site_Feuille_Houx_2.jpg\" alt=\"Site Feuille Houx 2.jpg\" width=\"673\" height=\"528\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Sclerenchyma : fibers Lignified fibers (to distinguish from cellulosic fibers) commonly occur in groups forming strands associated to vascular bundles in the stem. They are also found in \u201cthick\u201d leaves. They have a thick secondary lignified wall, and they are dead at maturity without protoplasm. Two examples are shown on this page: parts of cross [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-317","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sclerenchyma: fibers - Mich\u00e8le Cr\u00e8vecoeur<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/michelecrevecoeur.ch\/?page_id=317\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sclerenchyma: fibers - Mich\u00e8le Cr\u00e8vecoeur\" \/>\n<meta property=\"og:description\" content=\"Sclerenchyma : fibers Lignified fibers (to distinguish from cellulosic fibers) commonly occur in groups forming strands associated to vascular bundles in the stem. 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