{"id":378,"date":"2015-12-01T17:28:40","date_gmt":"2015-12-02T00:28:40","guid":{"rendered":"http:\/\/sites.evergreen.edu\/vms\/?p=378"},"modified":"2015-12-11T10:30:25","modified_gmt":"2015-12-11T17:30:25","slug":"protoperidinium-leonis-cap","status":"publish","type":"post","link":"https:\/\/sites.evergreen.edu\/vms\/protoperidinium-leonis-cap\/","title":{"rendered":"Protoperidinium leonis"},"content":{"rendered":"<p>\u00a0By Casey Powers<\/p>\n<p><!--more--><\/p>\n<div id=\"attachment_1068\" style=\"width: 287px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited.jpg\"><img aria-describedby=\"caption-attachment-1068\" loading=\"lazy\" class=\"wp-image-1068\" src=\"http:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited.jpg\" alt=\"Protoperidinium Leonis Stipple edited\" width=\"277\" height=\"253\" srcset=\"https:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited.jpg 3363w, https:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited-300x274.jpg 300w, https:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited-1024x935.jpg 1024w, https:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited-945x863.jpg 945w, https:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/Protoperidinium-Leonis-Stipple-edited-600x548.jpg 600w\" sizes=\"(max-width: 277px) 100vw, 277px\" \/><\/a><p id=\"caption-attachment-1068\" class=\"wp-caption-text\">Image inspired by\u00a0<em>P<\/em><em>eridinium leonis<sup>5<\/sup><\/em><\/p><\/div>\n<p>Class: Dinophyceae<\/p>\n<p>Order: Peridiniales<\/p>\n<p>Genus: Protoperidinium<\/p>\n<p><em><br \/>Protoperidinium leonis<\/em>\u00a0is a heterotrophic dinoflagellate, relatively large in size (~50-95 micrometers).<sup>3<\/sup>\u00a0The evolutionary and life history of the <em>Protoperidinium<\/em> is not well known, but the Massachusetts Institute of Technology have recently observed aspects of the organisms\u2019 life regarding their ecology and reproductive cycles. <em>Protoperidinium<\/em> was at one point discovered to reproduce asexually, creating two daughter cells out of division of a cyst. These daughter cells appeared to be initially round, forming horns before splitting. However, in some clonal cultures, sexual reproduction was present, suggesting that <em>Protoperidinium<\/em> doesn\u2019t mate exclusively through asexual division. Because\u00a0of the multitude of varying observations of the <em>Protoperidinium\u2019s<\/em> reproductive and life cycle, this has led to confusion while identifying different types of dinoflagellates.<sup>1<\/sup><\/p>\n<p><em>Protoperidinium<\/em> have been known to play in integral role in the consumption of phytoplankton and other primary producers. It has been observed that the majority of <em>Protoperidinium<\/em> species consume their prey externally, <img loading=\"lazy\" class=\"size-medium wp-image-399 alignright\" src=\"http:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/11\/Protoperidinium-Leonis-Watercolor-247x300.jpeg\" alt=\"Protoperidinium Leonis Watercolor\" width=\"247\" height=\"300\" \/>capturing and digesting them in a pseudopod called the pallium. Because their pallium is an external feature, they can prey on phytoplankton larger than themselves, including nauplii, copepods, and other larvae. Because of this, they serve as competition for mesozooplankton. A study was done observing the mass grazing impact off the coast of Ireland in the Celtic Sea, and thecorrelation of this genus of dinoflagellates to azaspiracid (AZA) shellfish toxicity. Thirty two species of <em>Protoperidinium<\/em>\u00a0were recorded, and due to their abundance and feeding habits, were estimated to consume 30-80% of the phytoplankton in that area. <em>Protoperidinium<\/em> could contribute to AZA production and toxic algal blooms, possibly through the mass consumption of toxin-containing phytoplankton. The spread of AZA and harmful algal blooms has created a devastating impact on the health and economics of this region in Ireland, as it has led to many closures of fisheries and shellfish harvesting sites.<sup>2<\/sup><\/p>\n<div id=\"attachment_979\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/beets-beats-and-dinoflagellates1.gif\"><img aria-describedby=\"caption-attachment-979\" loading=\"lazy\" class=\"size-full wp-image-979\" src=\"http:\/\/sites.evergreen.edu\/vms\/wp-content\/uploads\/sites\/139\/2015\/12\/beets-beats-and-dinoflagellates1.gif\" alt=\"Beets, Beats, and Dinoflagellates: an animation created by CAP that illustrates Protoperidinium Leonis taking different forms of life. This was created to show how we make closure, or connections to what we see, to larger world issues, like resource equality and climate change.\" width=\"400\" height=\"300\" \/><\/a><p id=\"caption-attachment-979\" class=\"wp-caption-text\">Beets, Beats, and Dinoflagellates: an animation created by CAP that illustrates <em>Protoperidinium leonis<\/em>\u00a0taking different forms of life. This was created to show how we make closure, or connections to what we see, to larger world issues, like resource equality and climate change.<\/p><\/div>\n<p>My animation plays with the concept of closure, introduced to us by Scott McCloud of <em>Understanding Comics<\/em>. Upon my discovery of <em>Protoperidinium\u00a0leonis<\/em> and further illustrations and research, I realized that this dinoflagellate strikingly resembled a beet root, and, when turned upside down, an anatomical human heart. After discussing with my classmates and others whom I showed my observational drawings to, who shared the same connection, I decided to incorporate this into my animation. Not only would it make a short animation about plankton artistic and interesting, but it would help serve as a metaphor of their importance, and how we can think of them in the context of larger world issues, including the health of humans and climate change.\u00a0<\/p>\n<p>In my animation, the viewer is peering into a microscope: a flat landscape of a cluster of diatoms and dinoflagellates. Then the focus turns towards <em>Protoperidinium<\/em>, located in the center. It transforms into a beet, and then into an anatomical heart that beats for a few frames before transforming back into its original form, <em>Protoperidinium leonis<\/em>.<\/p>\n<p>&nbsp;<\/p>\n<h3>References<\/h3>\n<ol>\n<li><span id=\"E56\" class=\"qowt-font1-TimesNewRoman\">Gribble, Kristin Elizabeth. <\/span><span id=\"E57\">\u201c<\/span><span id=\"E58\" class=\"qowt-font1-TimesNewRoman\">The ecology, life history, and phylogeny of the marine thecae heterotrophic dinoflagellates Protoperidinium and Diplopsalidaceae (Dinophyceae)<\/span><span id=\"E59\">\u201d <\/span><span id=\"E60\" class=\"qowt-font1-TimesNewRoman\">(2006). Joint Program in <\/span><span class=\"qowt-font1-TimesNewRoman\">Biological Oceanography; Massachusetts Institute of Technology. Dept. of Biology; Woods Hole Oceanographic Institution. Massachusetts Institute of Technology. Retrieved November 16, 2015 from <\/span><a id=\"E61\" class=\"qowt-field qowt-field-hyperlink\" href=\"http:\/\/dspace.mit.edu\/handle\/1721.1\/39221\" target=\"_blank\"><span id=\"E62\" class=\"qowt-font1-TimesNewRoman qowt-stl-Hyperlink.0\">http:\/\/dspace.mit.edu\/handle\/1721.1\/39221<\/span><\/a><\/li>\n<li><span id=\"E65\" class=\"qowt-font1-TimesNewRoman\">\u00a0Gribble, Kristin E. Nolan, Glenn. Anderson, Donald M. &#8220;Biodiversity, biogeography and potential trophic impact of <\/span><span id=\"E66\" class=\"qowt-font1-TimesNewRoman\">Protoperidinium<\/span><span id=\"E67\" class=\"qowt-font1-TimesNewRoman\"> spp. (Dinophyceae) off the southwestern coast of Ireland.<\/span><span id=\"E68\">\u201d <\/span><span id=\"E69\" class=\"qowt-font1-TimesNewRoman\">(2007) <\/span><span id=\"E70\" class=\"qowt-font1-TimesNewRoman\">Journal of Plankton Research.<\/span><span id=\"E71\" class=\"qowt-font1-TimesNewRoman\"> Volume 29, No. 11, pp 931-947. Oxford University Press. Retrieved November 16th 2015 from <\/span><span id=\"E73\" class=\"qowt-font1-TimesNewRoman qowt-stl-Hyperlink.0\"><a id=\"E72\" class=\"qowt-field qowt-field-hyperlink\" href=\"http:\/\/www.whoi.edu\/fileserver.do?id=45411&amp;pt=2&amp;p=28251\" target=\"_blank\">http:\/\/www.whoi.edu\/fileserver.do?id=45411&amp;pt=2&amp;p=28251<\/a><\/span><\/li>\n<li>Kylensteirna, Mats. Karlson, Bengt. Protoperidinium Leonis Swedish Meteorological &amp; Hydrological Institute. (2006) Retrieved November 4th 2015 from http:\/\/www.smhi.se\/oceanografi\/oce_info_data\/plankton_checklist\/dinoflagellates\/protoperidinium_leonis.htm<\/li>\n<li><span id=\"E79\" class=\"qowt-font1-TimesNewRoman\">Taxonomy Notes of\u00a0<em>Protoperidinium Leonis<\/em>(Pavillard) Balech 1974. Retrieved November 4th 2015 from \u00a0http:\/\/www.algaebase.org\/search\/species\/detail\/?species_id=Pd18512667c6a5596&amp;sk=0&amp;from=results<\/span><\/li>\n<li>Peridinium leonis- Information on Peridinium leonis- Encyclopedia of Life. Retrieved November 4th from http:\/\/eol.org\/pages\/900886\/overview<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0By Casey Powers<\/p>\n","protected":false},"author":2381,"featured_media":399,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[25,4],"tags":[],"_links":{"self":[{"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/posts\/378"}],"collection":[{"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/users\/2381"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/comments?post=378"}],"version-history":[{"count":0,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/posts\/378\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/media\/399"}],"wp:attachment":[{"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/media?parent=378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/categories?post=378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.evergreen.edu\/vms\/wp-json\/wp\/v2\/tags?post=378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}