{"id":234,"date":"2016-05-19T15:22:02","date_gmt":"2016-05-19T22:22:02","guid":{"rendered":"https:\/\/sites.evergreen.edu\/vms-spring\/?p=234"},"modified":"2016-06-04T13:48:25","modified_gmt":"2016-06-04T20:48:25","slug":"asteroinella-incomplete","status":"publish","type":"post","link":"https:\/\/sites.evergreen.edu\/vms-spring\/asteroinella-incomplete\/","title":{"rendered":"Asterionella sp."},"content":{"rendered":"<pre style=\"padding-left: 30px\">Asterionella sp.\r\nDevlen Dykeman<\/pre>\n<p><!--more--><\/p>\n<p><span style=\"font-weight: 400\">Asterionella is a genus of a diatom.\u00a0<\/span><span style=\"font-weight: 400\">They are often found in colonies of eight or more in the shape of a star, which is how they got their name. \u00a0The average size of an Asterionella colony is between 60 and 80 micrometers long, with each arm being 2-4 micrometers wide. \u00a0Each arm cell is attached to the other cells by means of extracellular matter. \u00a0Each arm cell is linked by means of a valve face at the bottom of the arm cell, it remains connected by mucilage pads. (Spaulding 2012)<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_617\" style=\"width: 254px\" class=\"wp-caption alignleft\"><img aria-describedby=\"caption-attachment-617\" loading=\"lazy\" class=\"wp-image-617\" src=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster2_edited-1-225x300.jpg\" alt=\"AsteroinellaDevlen\" width=\"244\" height=\"325\" srcset=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster2_edited-1-225x300.jpg 225w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster2_edited-1-768x1024.jpg 768w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster2_edited-1-600x800.jpg 600w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster2_edited-1.jpg 800w\" sizes=\"(max-width: 244px) 100vw, 244px\" \/><p id=\"caption-attachment-617\" class=\"wp-caption-text\">Asteroinella as seen under a microscope at 400x on 5\/3\/2016. Ink and water color on paper.<\/p><\/div>\n<p><span style=\"font-weight: 400\">Asterionella, like other diatoms, are a group of algae and are in turn among the most common types of phytoplankton. \u00a0Like other phytoplankton, they photosynthesize and convert dissolved CO2 into organic compounds. Phytoplankton, Asterionella and other diatoms are one of the foundations of the food chain. (Greeson 1982)<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">The Asterionella consists of a cell wrapped in a protective silica skeleton, called a frustule. \u00a0The silica skeleton consists of an epitheca and a hypotheca. \u00a0The Hypotheca is slightly smaller than the Epitheca. \u00a0During asexual reproduction both the thecae and epitheca of the new daughter cell produces their own hypotheca, however the daughter cell is always smaller than normal. It is currently not known, although it is assumed, that the cells regain average size through sexual reproduction. (Arnout De Bruin 2004)\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_618\" style=\"width: 310px\" class=\"wp-caption alignright\"><img aria-describedby=\"caption-attachment-618\" loading=\"lazy\" class=\"wp-image-618 size-medium\" src=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-300x248.jpg\" alt=\"AsteroinellaDevlencloselook\" width=\"300\" height=\"248\" srcset=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-300x248.jpg 300w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-768x636.jpg 768w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-1024x847.jpg 1024w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-945x782.jpg 945w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1-600x497.jpg 600w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/Aster1_edited-1.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-618\" class=\"wp-caption-text\">A detailed examination of Asteroinella and the different sections of the limbs. Ink with stipple method and some color pencil on paper. 5\/17\/2016<\/p><\/div>\n<p>Asterionella and humans share the capability to shape their environment.\u00a0 Asteroinella, when blooming and over populating, are capable suffocating an entire area of oxygen.\u00a0 Humans pump harmful toxins into both the air and water, killing countless.\u00a0 While Asterionella do not know what they are doing, we humans do.\u00a0 We can see and understand the impacts we have on the surrounding environment and we are capable of changing for the better.\u00a0<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" width=\"676\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/4mQ5cp-REmI?feature=oembed\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<h5 style=\"text-align: center\">\u00a0<\/h5>\n<h5 style=\"text-align: center\"><strong>Vocabulary words:<\/strong><\/h5>\n<h4><span style=\"font-weight: 400\">Phytoplankton: <\/span><\/h4>\n<p><span style=\"font-weight: 400\">Phytoplankton are tiny little microscopic plants! \u00a0Although they may be microscopic, they can have major impacts on the ocean and during these major impacts they can be seen from space!<\/span><\/p>\n<p>&nbsp;<\/p>\n<h4><span style=\"font-weight: 400\">Frustule:<\/span><\/h4>\n<p><span style=\"font-weight: 400\"> It is the hard and porous cell wall of a diatom. This is generally composed of silica, more commonly known as glass. So Asterionella, the star shaped diatom, has a glass exterior!<\/span><\/p>\n<p>&nbsp;<\/p>\n<h4><span style=\"font-weight: 400\">Thecae: \u00a0<\/span><\/h4>\n<p><span style=\"font-weight: 400\">This is part of the frustule, which as we remember is the glass exterior. \u00a0The Frustule is not a solid chunk of glass, but is made up of sections. \u00a0The Thecae is the two pieces of glass that connects, a bit like the plastic Easter eggs. \u00a0One part is slightly larger and overlaps the slightly smaller, connecting the two.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h4><span style=\"font-weight: 400\">Hypotheca and Epitheca: <\/span><\/h4>\n<p><span style=\"font-weight: 400\">The Hypotheca and the Epitheca are the names of the two sides. The Hypotheca is the smaller side that fits into the Epitheca, much like connecting the two halves of the plastic Easter egg together.<\/span><\/p>\n<p>Author: Devlen Dykeman<\/p>\n<h1><span style=\"font-weight: 400\">References<\/span><\/h1>\n<p><span style=\"font-weight: 400\">Arnout De Bruin, Bas W. Ibelings, Machteld Rijkeboer, Michaela Brehm, Ellen Van Donk. 2004. &#8220;Genetic Variation in <em>Asterionella formosa<\/em>.&#8221; <\/span><i><span style=\"font-weight: 400\">Journel of Phycology<\/span><\/i><span style=\"font-weight: 400\">\u00a0 823-830.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Greeson, Phillip E. 1982. <\/span><i><span style=\"font-weight: 400\">An annotated key to the identification of commonly occurring and dominate genera of algae observed in the phytoplankton of the United States.<\/span><\/i><span style=\"font-weight: 400\"> Water supply, n\/a: U.S. G.P.O.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Spaulding, Sarah. 2012. &#8220;<em>Asterionella formosa<\/em>.&#8221; <\/span><i><span style=\"font-weight: 400\">Westerndiatoms.com<\/span><\/i><span style=\"font-weight: 400\"> 1-2.<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_281\" style=\"width: 359px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-281\" loading=\"lazy\" class=\"wp-image-281\" src=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-300x225.jpg\" alt=\"AsteroinellaDevlen\" width=\"349\" height=\"262\" srcset=\"https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-300x225.jpg 300w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-768x576.jpg 768w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-1024x768.jpg 1024w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-600x450.jpg 600w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250-945x709.jpg 945w, https:\/\/sites.evergreen.edu\/vms-spring\/wp-content\/uploads\/sites\/209\/2016\/05\/IMG_20160503_111207-e1463693341250.jpg 1200w\" sizes=\"(max-width: 349px) 100vw, 349px\" \/><p id=\"caption-attachment-281\" class=\"wp-caption-text\">Photograph of Asteroinella through microscope eye piece on 5\/3\/2016. Taken with cellphone camera at 12.3mp<\/p><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Asterionella sp. Devlen Dykeman<\/p>\n","protected":false},"author":1211,"featured_media":617,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[19,5],"tags":[],"_links":{"self":[{"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/posts\/234"}],"collection":[{"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/users\/1211"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/comments?post=234"}],"version-history":[{"count":0,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/posts\/234\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/media\/617"}],"wp:attachment":[{"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/media?parent=234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/categories?post=234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms-spring\/wp-json\/wp\/v2\/tags?post=234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}