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    <title>UTas ePrints - Phylogenetic and functional diversity of the cultivable bacterial community associated with the paralytic shellfish poisoning dinoflagellate Gymnodinium catenatum</title>
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    <meta content="Green, D.H." name="eprints.creators_name" />
<meta content="Llewellyn, L.E." name="eprints.creators_name" />
<meta content="Negri, A.P." name="eprints.creators_name" />
<meta content="Blackburn, Susan I." name="eprints.creators_name" />
<meta content="Bolch, Christopher J.S." name="eprints.creators_name" />
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<meta content="chris.bolch@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-11-15 06:16:05" name="eprints.datestamp" />
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<meta content="Phylogenetic and functional diversity of the cultivable bacterial community associated with the paralytic shellfish poisoning dinoflagellate Gymnodinium catenatum" name="eprints.title" />
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<meta content="Dinoflagellate; Paralytic shellfish poisoning; Small subunit rDNA; Cultivable bacterial diversity; Rhodobacteraceae; Alteromonadaceae; Aerobic anoxygenic photosynthesis; Hydrocarbon utilisation; Gymnodinium catenatum" name="eprints.keywords" />
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<meta content="Gymnodinium catenatum is one of several dinoflagellates that produce a suite of neurotoxins called the paralytic shellfish toxins (PST),
responsible for outbreaks of paralytic shellfish poisoning in temperate and tropical waters. Previous research suggested that the bacteria
associated with the surface of the sexual resting stages (cyst) were important to the production of PST by G. catenatum. This study sought
to characterise the cultivable bacterial diversity of seven different strains of G. catenatum that produce both high and abnormally low
amounts of PST, with the long-term aim of understanding the role the bacterial flora has in bloom development and toxicity of this alga.
Sixty-one bacterial isolates were cultured and phylogenetically identified as belonging to the Proteobacteria (70%), Bacteroidetes (26%) or
Actinobacteria (3%). The Alphaproteobacteria were the most numerous both in terms of the number of isolates cultured (49%) and were
also the most abundant type of bacteria in each G. catenatum culture. Two phenotypic (functional) traits inferred from the phylogenetic
data were shown to be a common feature of the bacteria present in each G. catenatum culture: firstly, Alphaproteobacteria capable of
aerobic anoxygenic photosynthesis, and secondly, Gammaproteobacteria capable of hydrocarbon utilisation and oligotrophic growth. In
relation to reports of autonomous production of PST by dinoflagellate-associated bacteria, PST production by bacterial isolates was
investigated, but none were shown to produce any PST-like toxins. Overall, this study has identified a number of emergent trends in the
bacterial community of G. catenatum which are mirrored in the bacterial flora of other dinoflagellates, and that are likely to be of especial
relevance to the population dynamics of natural and harmful algal blooms." name="eprints.abstract" />
<meta content="2004-03" name="eprints.date" />
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<meta content="Green, D.H. and Llewellyn, L.E. and Negri, A.P. and Blackburn, Susan I. and Bolch, Christopher J.S. (2004) Phylogenetic and functional diversity of the cultivable bacterial community associated with the paralytic shellfish poisoning dinoflagellate Gymnodinium catenatum. FEMS Microbiology Ecology, 47 (3). pp. 345-357. ISSN 0168-6496" name="eprints.citation" />
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<meta content="Green, D.H." name="DC.creator" />
<meta content="Llewellyn, L.E." name="DC.creator" />
<meta content="Negri, A.P." name="DC.creator" />
<meta content="Blackburn, Susan I." name="DC.creator" />
<meta content="Bolch, Christopher J.S." name="DC.creator" />
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<meta content="Gymnodinium catenatum is one of several dinoflagellates that produce a suite of neurotoxins called the paralytic shellfish toxins (PST),
responsible for outbreaks of paralytic shellfish poisoning in temperate and tropical waters. Previous research suggested that the bacteria
associated with the surface of the sexual resting stages (cyst) were important to the production of PST by G. catenatum. This study sought
to characterise the cultivable bacterial diversity of seven different strains of G. catenatum that produce both high and abnormally low
amounts of PST, with the long-term aim of understanding the role the bacterial flora has in bloom development and toxicity of this alga.
Sixty-one bacterial isolates were cultured and phylogenetically identified as belonging to the Proteobacteria (70%), Bacteroidetes (26%) or
Actinobacteria (3%). The Alphaproteobacteria were the most numerous both in terms of the number of isolates cultured (49%) and were
also the most abundant type of bacteria in each G. catenatum culture. Two phenotypic (functional) traits inferred from the phylogenetic
data were shown to be a common feature of the bacteria present in each G. catenatum culture: firstly, Alphaproteobacteria capable of
aerobic anoxygenic photosynthesis, and secondly, Gammaproteobacteria capable of hydrocarbon utilisation and oligotrophic growth. In
relation to reports of autonomous production of PST by dinoflagellate-associated bacteria, PST production by bacterial isolates was
investigated, but none were shown to produce any PST-like toxins. Overall, this study has identified a number of emergent trends in the
bacterial community of G. catenatum which are mirrored in the bacterial flora of other dinoflagellates, and that are likely to be of especial
relevance to the population dynamics of natural and harmful algal blooms." name="DC.description" />
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    <h1 class="ep_tm_pagetitle">Phylogenetic and functional diversity of the cultivable bacterial community associated with the paralytic shellfish poisoning dinoflagellate Gymnodinium catenatum</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Green, D.H.</span> and <span class="person_name">Llewellyn, L.E.</span> and <span class="person_name">Negri, A.P.</span> and <span class="person_name">Blackburn, Susan I.</span> and <span class="person_name">Bolch, Christopher J.S.</span> (2004) <xhtml:em>Phylogenetic and functional diversity of the cultivable bacterial community associated with the paralytic shellfish poisoning dinoflagellate Gymnodinium catenatum.</xhtml:em> FEMS Microbiology Ecology, 47 (3). pp. 345-357. ISSN 0168-6496</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2477/1/fems-bolch.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2477/1/fems-bolch.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />789Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="3257" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1016/S0168-6496(03)00298-8">http://dx.doi.org/10.1016/S0168-6496(03)00298-8</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Gymnodinium catenatum is one of several dinoflagellates that produce a suite of neurotoxins called the paralytic shellfish toxins (PST),&#13;
responsible for outbreaks of paralytic shellfish poisoning in temperate and tropical waters. Previous research suggested that the bacteria&#13;
associated with the surface of the sexual resting stages (cyst) were important to the production of PST by G. catenatum. This study sought&#13;
to characterise the cultivable bacterial diversity of seven different strains of G. catenatum that produce both high and abnormally low&#13;
amounts of PST, with the long-term aim of understanding the role the bacterial flora has in bloom development and toxicity of this alga.&#13;
Sixty-one bacterial isolates were cultured and phylogenetically identified as belonging to the Proteobacteria (70%), Bacteroidetes (26%) or&#13;
Actinobacteria (3%). The Alphaproteobacteria were the most numerous both in terms of the number of isolates cultured (49%) and were&#13;
also the most abundant type of bacteria in each G. catenatum culture. Two phenotypic (functional) traits inferred from the phylogenetic&#13;
data were shown to be a common feature of the bacteria present in each G. catenatum culture: firstly, Alphaproteobacteria capable of&#13;
aerobic anoxygenic photosynthesis, and secondly, Gammaproteobacteria capable of hydrocarbon utilisation and oligotrophic growth. In&#13;
relation to reports of autonomous production of PST by dinoflagellate-associated bacteria, PST production by bacterial isolates was&#13;
investigated, but none were shown to produce any PST-like toxins. Overall, this study has identified a number of emergent trends in the&#13;
bacterial community of G. catenatum which are mirrored in the bacterial flora of other dinoflagellates, and that are likely to be of especial&#13;
relevance to the population dynamics of natural and harmful algal blooms.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at http://www.sciencedirect.com/</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Dinoflagellate; Paralytic shellfish poisoning; Small subunit rDNA; Cultivable bacterial diversity; Rhodobacteraceae; Alteromonadaceae; Aerobic anoxygenic photosynthesis; Hydrocarbon utilisation; Gymnodinium catenatum</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270404.html">270000 Biological Sciences &gt; 270400 Botany &gt; 270404 Phycology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270307.html">270000 Biological Sciences &gt; 270300 Microbiology &gt; 270307 Microbial Ecology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270308.html">270000 Biological Sciences &gt; 270300 Microbiology &gt; 270308 Microbial Systematics, Taxonomy and Phylogeny</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2477</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Christopher J.S. Bolch</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">15 Nov 2007 17:16</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2477;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=2477">item control page</a></p>
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