{"id":1531,"date":"2022-01-23T15:16:21","date_gmt":"2022-01-23T14:16:21","guid":{"rendered":"https:\/\/michelecrevecoeur.ch\/?page_id=1531"},"modified":"2022-01-23T15:17:26","modified_gmt":"2022-01-23T14:17:26","slug":"viscum-stem","status":"publish","type":"page","link":"https:\/\/michelecrevecoeur.ch\/?page_id=1531","title":{"rendered":"Viscum Stem"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1531\" class=\"elementor elementor-1531\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7f20f29c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7f20f29c\" 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-227c04c4\" data-id=\"227c04c4\" 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-5c9f574f elementor-widget elementor-widget-text-editor\" data-id=\"5c9f574f\" 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;\"><strong><span style=\"color: #000080; font-size: medium;\">Cross section through a stem of\u00a0<em>Viscum album<\/em><br \/><\/span><\/strong><\/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;\"><span style=\"color: #000080;\"><em>Viscum album<\/em>, white mistletoe, is a hemi \u2013 parasite of Viscaceae family, growing on the branches of different trees to which it is attached by a hausterium. It is in leaf all the year.<br \/><br \/>Light micrographs below illustrate a paraffin section 10 \u00b5m thick in a portion of stem fixed with FAA. The section has been stained with\u00a0<span style=\"text-decoration-line: underline;\">PAS<\/span>\u00a0that specifically stains polysaccharides\u00a0<span style=\"color: #ffffff; background-color: #888888;\">that<\/span>\u00a0appear pink, fuchsia.<br \/>General aspect of the cross section with vascular bundles arranged in a ring having poorly developed phloem but xylem is extensively developed. Under the uniseriate epidermis there is the cortical parenchyma. The central pith is partly altered.<\/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;\"><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\/403f43934ef2e53bbd9ab4bfe81186b8_f748.jpg\" alt=\"Site coupe tige gui 1\" width=\"650\" height=\"731\" \/><\/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;\">Part of the section at higher magnification. From outside towards inside we have successively: the cuticle (yellow arrow) of the uniseriate epidermis (ep), cortical parenchyma (par co) and a vascular bundle with fibers, superposed phloem and xylem. Fibers with thick lignified walls are present on the two sides of the vascular bundle are more numerous above phloem.\u00a0<strong>Scale<\/strong>: 100 microns<\/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\/dd15b335e66e1e2cdcbde83448c59815_f749.jpg\" alt=\"Site coupe tige gui 2\" width=\"650\" height=\"524\" \/><\/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>Cross section through a stem of\u00a0Viscum album Viscum album, white mistletoe, is a hemi \u2013 parasite of Viscaceae family, growing on the branches of different trees to which it is attached by a hausterium. It is in leaf all the year. Light micrographs below illustrate a paraffin section 10 \u00b5m thick in a portion of [&hellip;]<\/p>\n","protected":false},"author":2,"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-1531","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Viscum Stem - Mich\u00e8le Cr\u00e8vecoeur<\/title>\n<meta name=\"description\" content=\"Viscum album, white mistletoe, is a hemi \u2013 parasite of Viscaceae family, growing on the branches of different trees to which it is attached by a hausterium. 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