• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Preliminary study on the response of marine fungoid protists, the thraustochytrids, to lipid extracts of diatoms

    Thumbnail
    Date
    2020
    Author
    Damare, V.S.
    DeCosta, P.M.
    Mamatha, S.S.
    Borges, V.
    Fernandes, Mary
    Fernandes, Charmaine
    Cardozo, S.
    Metadata
    Show full item record
    Abstract
    Thraustochytrids are particle-associated protists, ubiquitous in the marine environment. They are known to display a negative relationship with phytoplankton cells but a positive one with their exudates and detritus. Phytoplankton are known to express allelopathic effects against other organisms, but the exact mechanism by which phytoplankton cause inhibition to thraustochytrids is understudied. This is the first report of examination of bioactivity of lipid extracts of diatom cultures on thraustochytrids. Lipid extracts from four diatom cultures, viz. Cylindrotheca closterium (JB2), Skeletonema sp.1 (JB3), Thalassiosira sp. (JB4) and Skeletonema sp.2 (JB5), were tested against the growth of thraustochytrids: Oblongichytrium spp. (isolates VD4 and VD6), Parietichytrium sp. (isolate VD12) and Schizochytrium sp. (isolate VDC23b). Among the thraustochytrid isolates, Parietichytrium sp. was the most sensitive, whereas Schizochytrium sp. appeared to be the most resistant to the lipid extracts. The lipid extract from C. closterium possessed high amounts of C16:0, C16:1, C18:0, C18:1 and C20:5 fatty acids and bioactivity against the thraustochytrids. Lipids extracted during the late stationary phase of diatoms were inhibitory to thraustochytrid growth. Overall, these observations not only enhance our understanding of the diversity of allelopathic interactions between thraustochytrids and diatoms in the marine ecosystem, but also reveal the pivotal role of diatom lipids in such interactions across trophic levels.
    URI
    https://doi.org/10.1007/s10452-020-09747-z
    http://drs.nio.org/drs/handle/2264/8554
    Collections
    • Scholarly literature [9074]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV