Journal Article Distinct Profiles of ADP- and UDP-Specific Sucrose Synthases in Developing Rice Grains Get access Poh-Yam Lim, Poh-Yam Lim Research Institute for Biochemical Regulation, School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-01, Japan Search for other works by this author on: Oxford Academic Google Scholar Pierdomenico Perata, Pierdomenico Perata Research Institute for Biochemical Regulation, School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-01, Japan Search for other works by this author on: Oxford Academic Google Scholar Javier Pozueta-Romero, Javier Pozueta-Romero Research Institute for Biochemical Regulation, School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-01, Japan Search for other works by this author on: Oxford Academic Google Scholar Takashi Akazawa, Takashi Akazawa Research Institute for Biochemical Regulation, School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-01, Japan Search for other works by this author on: Oxford Academic Google Scholar Junji Yamaguchi Junji Yamaguchi Research Institute for Biochemical Regulation, School of Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-01, Japan Search for other works by this author on: Oxford Academic Google Scholar Bioscience, Biotechnology, and Biochemistry, Volume 56, Issue 4, 1 January 1992, Pages 695–696, https://doi.org/10.1271/bbb.56.695 Published: 01 January 1992 Article history Received: 16 December 1991 Published: 01 January 1992
A method has been developed to isolate pure preparations of nuclei in high yield from commercially available viable rice embryos (germ), employing extraction with buffer solution containing glycerol (without detergent) and polyamine, followed by centrifugation on a 30% Percoll cushion. The intactness of the isolated nuclei was confirmed by light microscopy as well as electron microscopy. The protein profiles of both whole nuclei and nuclear extracts obtained by SDS-PAGE, organellar marker enzyme activities, DNA and RNA analyses, and in vitro RNA synthesis, all indicate that the highly purified nuclei are isolated from rice embryos.