| Prey-dependent retention of dimethylsulfoniopropionate (DMSP) by mixotrophic dinoflagellates. | |
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MedLine Citation:
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PMID: 21958033 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We investigated the retention of dimethylsulfoniopropionate (DMSP) in phototrophic dinoflagellates arising from mixotrophy by estimating the cellular content of DMSP in Karlodinium veneficum (mixotrophic growth) fed for 7-10 days on either DMSP-rich Amphidinium carterae (phototrophic growth only) or DMSP-poor Teleaulax sp. (phototrophic growth only). In K. veneficum fed on DMSP-poor prey, the cellular content of DMSP remained almost unchanged regardless of the rate of feeding, whereas the cellular content of DMSP in cells of K. veneficum fed on DMSP-rich prey increased by as much as 21 times the cellular concentration derived exclusively from phototrophic growth. In both cases, significant fractions (10-32% in the former case and 55-65% in the latter) of the total DMSP ingested by K. veneficum were transformed into dimethylsulfide and other biochemical compounds. The results may indicate that the DMSP content of prey species affects temporal variations in the cellular DMSP content of mixotrophic dinoflagellates, and that mixotrophic dinoflagellates produce DMS through grazing on DMSP-rich preys. Additional studies should be performed to examine the universality of our finding in other mixotrophic dinoflagellates feeding on diverse prey species. |
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Authors:
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Hyunwoo Lee; Ki-Tae Park; Kitack Lee; Hae Jin Jeong; Yeong Du Yoo |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-30 |
Journal Detail:
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Title: Environmental microbiology Volume: - ISSN: 1462-2920 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100883692 Medline TA: Environ Microbiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 Society for Applied Microbiology and Blackwell Publishing Ltd. |
Affiliation:
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School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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