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Growth inhibition and formation of morphologically abnormal cells of Akashiwo sanguinea (Hirasaka) G. Hansen et Moestrup by cell contact with Cochlodinium polykrikoides Margalef
Yamasaki, Y.; Nagasoe, S.; Matsubara, T.; Shikata, T.; Shimasaki, Y.; Oshima, Y.; Honjo, T. (2007). Growth inhibition and formation of morphologically abnormal cells of Akashiwo sanguinea (Hirasaka) G. Hansen et Moestrup by cell contact with Cochlodinium polykrikoides Margalef. Mar. Biol. (Berl.) 152(1): 157-163. http://hdl.handle.net/10.1007/s00227-007-0671-7
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Yamasaki, Y.
  • Nagasoe, S.
  • Matsubara, T.
  • Shikata, T.
  • Shimasaki, Y.
  • Oshima, Y.
  • Honjo, T.

Abstract
    We investigated the growth interaction between Cochlodinium polykrikoides and Akashiwo sanguinea using bi-algal cultures. When cultured together, morphologically abnormal cells of A. sanguinea appeared and the growth of A. sanguinea notably decreased. When C. polykrikoides and A. sanguinea were cultured separately in inner and outer wells separated by a membrane with a pore size of 3 µm, neither species showed suppressed growth and no morphologically abnormal cells of A. sanguinea were observed. Furthermore, filtrates from C. polykrikoides cultures did not affect the cell morphology or the growth of A. sanguinea. When the abnormal cells of A. sanguinea were transferred from bi-algal cultures into fresh medium and cultured as a mono-algal culture, cells recovered their normal morphology and multiplied. Therefore, the growth inhibition and formation of morphologically abnormal cells of A. sanguinea would be induced by constant cell contact with C. polykrikoides.

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