Abstract
Plant peroxisomes are known to differentiate in function depending on the cell type. We reported that plant peroxisomes classified in five groups by transcriptome analyses, namely glyoxysome, cotyledonary peroxisome, leaf peroxisome, root peroxisome and unspecialized peroxisome1). Each organelle contains a unique set of enzymes that involved in a special function. Peroxisomes are known to interconvert between glyoxysomes and leaf peroxisomes during germination. The functional transformation of peroxisomes is accompanied with a massive exchange of their matrix proteins. Although the massive exchange of peroxisomal proteins is regulated by their gene expression and degradation, the detailed regulatory mechanism underlying this process still need to clarified. To investigate mechanisms of peroxisomal functional transformation, we analyzed gene expression profiles during transformation of glyoxysomes to leaf peroxisomes by DNA microarray.
1) PCP 2003 (Dec. issue) in press
