Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs
Pterobranchs are a group of marine invertebrates within the Hemichordata, which share characteristics with both chordates and echinoderms. Pterobranchs live in colonies of secreted tubes, coenicia, which are composed of a gelatinous material of unknown composition. Visually, the tubes appear similar...
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ftillinoiswu:oai:digitalcommons.iwu.edu:bio_honproj-1052 2023-05-15T13:49:22+02:00 Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs Sewera, Lukasz J 2011-04-15T07:00:00Z application/pdf https://digitalcommons.iwu.edu/bio_honproj/48 https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1052&context=bio_honproj unknown Digital Commons @ IWU https://digitalcommons.iwu.edu/bio_honproj/48 https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1052&context=bio_honproj Honors Projects staining Rhabdopleura morphology evolution fluorescence protein polysaccharide carbohydrate exoskeleton infrared spectroscopy IR taxonomy tunicate Ciona Ciona intestinalis tunicin morphological stomochord pterobranch hemichordate chordate echinoderm Pterobranchia Hemichordata Chordata Echinodermata coenecium dwelling tube collagen cellulose chitin keratin Antarctic Cephalodiscus Cephalodiscus nigrescens calcofluor white Masson's Hollande's trichrome purification Deuterostomia deuterostome Ambulacraria secretion fibrils fibers Biochemistry Biology Zoology text 2011 ftillinoiswu 2022-04-10T20:32:26Z Pterobranchs are a group of marine invertebrates within the Hemichordata, which share characteristics with both chordates and echinoderms. Pterobranchs live in colonies of secreted tubes, coenicia, which are composed of a gelatinous material of unknown composition. Visually, the tubes appear similar to the tunic of tunicates, a group of invertebrates within the Chordata. The nonproteinaceous tunic of tunicates is composed of cellulose, which is unusual. The goal of this study was to determine the composition of the pterobranch coenicium. Some aspects of pterobranch phylogeny are still unclear even after multiple molecular and morphological studies. Identification of any new shared characteristics with either echinoderms or chordates would be valuable in determining clearer relationships among these taxa. Purification methods, histology, and microscopy techniques were used to study the structure and properties of the tube material. To date, the results indicate that that the tube material may be protein but the composition is unknown. Text Antarc* Antarctic Illinois Wesleyan University: Digital Commons@IWU Antarctic |
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Open Polar |
collection |
Illinois Wesleyan University: Digital Commons@IWU |
op_collection_id |
ftillinoiswu |
language |
unknown |
topic |
staining Rhabdopleura morphology evolution fluorescence protein polysaccharide carbohydrate exoskeleton infrared spectroscopy IR taxonomy tunicate Ciona Ciona intestinalis tunicin morphological stomochord pterobranch hemichordate chordate echinoderm Pterobranchia Hemichordata Chordata Echinodermata coenecium dwelling tube collagen cellulose chitin keratin Antarctic Cephalodiscus Cephalodiscus nigrescens calcofluor white Masson's Hollande's trichrome purification Deuterostomia deuterostome Ambulacraria secretion fibrils fibers Biochemistry Biology Zoology |
spellingShingle |
staining Rhabdopleura morphology evolution fluorescence protein polysaccharide carbohydrate exoskeleton infrared spectroscopy IR taxonomy tunicate Ciona Ciona intestinalis tunicin morphological stomochord pterobranch hemichordate chordate echinoderm Pterobranchia Hemichordata Chordata Echinodermata coenecium dwelling tube collagen cellulose chitin keratin Antarctic Cephalodiscus Cephalodiscus nigrescens calcofluor white Masson's Hollande's trichrome purification Deuterostomia deuterostome Ambulacraria secretion fibrils fibers Biochemistry Biology Zoology Sewera, Lukasz J Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
topic_facet |
staining Rhabdopleura morphology evolution fluorescence protein polysaccharide carbohydrate exoskeleton infrared spectroscopy IR taxonomy tunicate Ciona Ciona intestinalis tunicin morphological stomochord pterobranch hemichordate chordate echinoderm Pterobranchia Hemichordata Chordata Echinodermata coenecium dwelling tube collagen cellulose chitin keratin Antarctic Cephalodiscus Cephalodiscus nigrescens calcofluor white Masson's Hollande's trichrome purification Deuterostomia deuterostome Ambulacraria secretion fibrils fibers Biochemistry Biology Zoology |
description |
Pterobranchs are a group of marine invertebrates within the Hemichordata, which share characteristics with both chordates and echinoderms. Pterobranchs live in colonies of secreted tubes, coenicia, which are composed of a gelatinous material of unknown composition. Visually, the tubes appear similar to the tunic of tunicates, a group of invertebrates within the Chordata. The nonproteinaceous tunic of tunicates is composed of cellulose, which is unusual. The goal of this study was to determine the composition of the pterobranch coenicium. Some aspects of pterobranch phylogeny are still unclear even after multiple molecular and morphological studies. Identification of any new shared characteristics with either echinoderms or chordates would be valuable in determining clearer relationships among these taxa. Purification methods, histology, and microscopy techniques were used to study the structure and properties of the tube material. To date, the results indicate that that the tube material may be protein but the composition is unknown. |
format |
Text |
author |
Sewera, Lukasz J |
author_facet |
Sewera, Lukasz J |
author_sort |
Sewera, Lukasz J |
title |
Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
title_short |
Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
title_full |
Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
title_fullStr |
Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
title_full_unstemmed |
Determining the Composition of the Dwelling Tubes of Antarctic Pterobranchs |
title_sort |
determining the composition of the dwelling tubes of antarctic pterobranchs |
publisher |
Digital Commons @ IWU |
publishDate |
2011 |
url |
https://digitalcommons.iwu.edu/bio_honproj/48 https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1052&context=bio_honproj |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Honors Projects |
op_relation |
https://digitalcommons.iwu.edu/bio_honproj/48 https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1052&context=bio_honproj |
_version_ |
1766251268904321024 |