{"id":1492,"date":"2022-01-23T15:06:57","date_gmt":"2022-01-23T14:06:57","guid":{"rendered":"https:\/\/michelecrevecoeur.ch\/?page_id=1492"},"modified":"2022-02-20T17:48:44","modified_gmt":"2022-02-20T16:48:44","slug":"pelargonium-stem","status":"publish","type":"page","link":"https:\/\/michelecrevecoeur.ch\/?page_id=1492","title":{"rendered":"Pelargonium Stem"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1492\" class=\"elementor elementor-1492\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6df77241 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6df77241\" 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-16e380ed\" data-id=\"16e380ed\" 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-271b54e7 elementor-widget elementor-widget-text-editor\" data-id=\"271b54e7\" 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: #000080;\"><strong>Cross section through a stem of\u00a0<em>Pelargonium graveolens<\/em>\u00a0<\/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;\">Pelargoniums are a large and diverse group of evergreen and perennial plants, and most of true Pelargonium species are native to South Africa such as P. graveolens from which scented pelargoniums were developed. They were cultivated for centuries for their scented leaves and for their medicinal properties.<br \/>The section from Georges Roux collection was stained with safranin and hemalum and mounted with oxidized balm. The year of its realization is august 1940.<\/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;\">Global view of the cross section showing characteristics of a young dicotyledon stem: a large pith (medullar parenchyma) constituted of polygonal cells with thin cellulosic wall; a cortex that consists of a few rows of parenchyma cells (cortical parenchyma); layers of sclerenchyma and vascular bundles on a single ring at the periphery of the pith. Blue arrows indicate the xylem with protoxylem located towards the center. Numerous glandular and non &#8211; glandular trichomes are observed at the epidermis level. Red arrows indicate calcium oxalate crystals distributed through the whole cortex (see details 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\/7fa74d142ecf007d8a386d47d89d8246_f585.jpg\" alt=\"Coupe tige geranium rosat 1\" width=\"750\" height=\"698\" \/><\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cea95c6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cea95c6\" 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-50 elementor-top-column elementor-element elementor-element-d0b8327\" data-id=\"d0b8327\" 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-d9b6d23 elementor-widget elementor-widget-text-editor\" data-id=\"d9b6d23\" 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: #000080;\">Example of glandular trichome .<\/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;\">Glandular trichomes are filled with aromatic oils and they make the plant fragrant when touched, releasing a powerful lemony scent. Graveolens means in Latin \u201cwhose smell is strong\u201d.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe06529 elementor-widget elementor-widget-image\" data-id=\"fe06529\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"449\" height=\"299\" src=\"https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ce9beff0b8df2ae350e9e99d9bfb6ed8_f589.jpg\" class=\"attachment-large size-large wp-image-1495\" alt=\"\" srcset=\"https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ce9beff0b8df2ae350e9e99d9bfb6ed8_f589.jpg 449w, https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ce9beff0b8df2ae350e9e99d9bfb6ed8_f589-300x200.jpg 300w\" sizes=\"(max-width: 449px) 100vw, 449px\" \/>\t\t\t\t\t\t\t\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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-38bff64\" data-id=\"38bff64\" 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-38a3d64 elementor-widget elementor-widget-text-editor\" data-id=\"38a3d64\" 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: #000080;\">Example of non &#8211; glandular trichome<\/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;\">\u00a0\u00a0\u00a0 \u00a0\u00a0They are generally long with a pointed tip.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b9d789 elementor-widget elementor-widget-image\" data-id=\"2b9d789\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"499\" height=\"263\" src=\"https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ec83e83c90642f67778db27418ca5ba9_f587.jpg\" class=\"attachment-large size-large wp-image-1496\" alt=\"\" srcset=\"https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ec83e83c90642f67778db27418ca5ba9_f587.jpg 499w, https:\/\/michelecrevecoeur.ch\/wp-content\/uploads\/2022\/01\/ec83e83c90642f67778db27418ca5ba9_f587-300x158.jpg 300w\" sizes=\"(max-width: 499px) 100vw, 499px\" \/>\t\t\t\t\t\t\t\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0b3784b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0b3784b\" 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-02f6a2e\" data-id=\"02f6a2e\" 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-a697e83 elementor-widget elementor-widget-text-editor\" data-id=\"a697e83\" 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;\">Portion of the cortex with a parenchyma cell containing an aggregate of calcium oxalate crystals called druse. Layers of sclerenchyma on the right constituted of cells with thick walls, pink stained<\/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 loading=\"lazy\" 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\/2cfdf9e12d38af25e754c3e2977803e8_f588.jpg\" alt=\"Coupe tige geranium rosat 4\" width=\"700\" height=\"476\" \/><\/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\u00a0Pelargonium graveolens\u00a0 Pelargoniums are a large and diverse group of evergreen and perennial plants, and most of true Pelargonium species are native to South Africa such as P. graveolens from which scented pelargoniums were developed. They were cultivated for centuries for their scented leaves and for their medicinal properties.The section [&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-1492","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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