Summary: (data not shown). Therefore, whereas SQDG-deficiency arrested the
growth of SD1 cells, the de novo biosynthesis of DNA and chloro-
phyll were not completely inhibited. These results suggested some
novel function of SQDG in the cell separation of Synechocystis
PCC6803. The interaction of SQDG with the cell separation
mechanism remains to be clarified at the molecular level.
This work has been supported by the Sasagawa Scientific Research
Grant from The Japan Science Society to M.A., the Ministry of
Education, Science, Sports, and Culture as well as CREST, Japan.
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